10 Longest Nonstop Flights in the World and What They’re Like (2026 Guide)

Somewhere over the Pacific, about eleven hours into a flight that still has eight hours to go, you realize that the cabin has become its own small world. The lights are low. Someone three rows ahead is watching a film for the second time. A flight attendant is quietly refilling water bottles. The map on the seatback screen shows a tiny plane icon that has barely moved against an enormous blue expanse.

That is the reality of the longest nonstop flights in the world: journeys that stretch past the 17-, 18-, and even 19-hour mark without a single landing. For many travelers, they are the ultimate convenience, because there is no connection to miss, no second boarding queue, and no hub terminal at 3 a.m. For others, they are an endurance test. Both views are fair, and both depend heavily on which airline, aircraft, and cabin you choose.

This guide covers the ten longest scheduled nonstop passenger routes, ranked by distance using the industry-standard OAG Summer 2026 ranking. For each one, it explains who flies it, on which aircraft, how long it really takes, and what the experience is like. It also covers an important 2026 development: airspace closures in the Middle East have changed how several of these famous routes are operated, so some flights on the list currently make a technical stop. We flag every one of those cases clearly.

You’ll also find a look ahead at Qantas’s Project Sunrise, the flights expected to overtake the current record in 2027, plus a practical survival guide, a jet lag primer and an FAQ.

The 10 Longest Nonstop Flights at a Glance

Here is the full ranking, with each route’s operating status as of autumn 2026.

Distances are great-circle (shortest path over the Earth’s surface) figures. Scheduled times are gate-to-gate block times and vary by direction, season, and winds.

What the numbers mean in practice: The record route, Singapore to New York JFK, covers 15,349 km. The Earth’s circumference is roughly 40,075 km, so this single flight crosses about 38% of the way around the planet. At an average of roughly 815 km/h (about 506 mph) over a scheduled 18 hours 50 minutes, it works out like this:

15,349 km ÷ 18.83 hours ≈ 815 km/h average gate-to-gate speed

That figure is lower than the aircraft’s cruising speed (around 900 km/h) because it includes taxiing, climb, descent, and the wind effects covered later in this guide.

How We Ranked These Flights (and Why Rankings Differ)

If you search for the longest flights in the world, you’ll find slightly different lists. Four things explain most of the differences.

1. Distance versus duration. A flight can be among the longest by distance yet shorter by time if it has a tailwind, or longer by time than its distance suggests if it fights headwinds. Auckland to New York JFK is a good example. It ranks seventh by distance, but the New York to Auckland direction is scheduled at about 17 hours 50 minutes, among the longest block times in the world.

2. Great-circle versus flown distance. Rankings use the great-circle distance, which is the shortest possible path between two airports. Real aircraft deviate to catch favorable winds, avoid weather, and stay clear of restricted airspace. The distance actually flown is often longer.

3. Statute miles versus kilometers. Some lists quote miles, some kilometers, and some nautical miles. The ordering is the same, but the headline numbers differ. We provide both.

4. Schedule snapshots. Airlines change routes seasonally. A route that is nonstop in one month might make a stop in another. That is particularly relevant in 2026, as the next section explains.

The 2026 Twist: Airspace Closures Have Reshuffled the List

Before looking at each route, it’s important to understand a major 2026 change. Closures of airspace across parts of the Middle East have forced several airlines to reroute or add technical stops, and a longer path around closed airspace can push an aircraft past its payload limits. Airlines then add a refueling stop so they don’t have to leave seats or cargo behind.

The effects on this top ten are significant:

• Qatar Airways’ Auckland–Doha service was suspended for around three and a half months, then resumed on 17 June 2026 with a stop in Adelaide rather than nonstop. Industry reports indicate the airline plans to switch that stop to Melbourne in December 2026.
• Qantas’ Perth to London has been routed through Singapore since March 2026, while London to Perth is still scheduled nonstop. Reports indicate Qantas has scheduled the Singapore routing until at least the end of January 2027.
• Qantas’ Paris–Perth nonstop is not currently operating. The airline moved its Sydney–Paris routing to stop in Singapore in April 2026.
• China Southern’s Shenzhen–Mexico City is nonstop in one direction only. The return flight stops in Tijuana, a stop the industry attributes to Mexico City’s high altitude, where thinner air limits takeoff weight.

For this reason, we ranked the routes using the OAG Summer 2026 distance ranking, which is the industry reference, and added an honest status note to each. If you are planning travel, always verify the current routing on the airline’s booking page before you buy.

1. Singapore to New York JFK: The Longest Flight in the World

Airline: Singapore Airlines (flights SQ23 and SQ24)
Distance: 15,349 km / 9,537 miles
Scheduled time: about 18 hours 50 minutes from Singapore, up to 19 hours 15 minutes from New York
Aircraft: Airbus A350-900ULR
Status: Nonstop daily

The story behind the record

Singapore Airlines launched this route on 9 November 2020, in the middle of a pandemic that had wiped out most long-haul demand. The airline had already pioneered ultra-long-range flying. Its original Singapore–Newark service began in 2004 on a four-engine Airbus A340-500, and was dropped in 2013 when the fuel-hungry aircraft stopped making economic sense. It returned in 2018, now on a far more efficient twin-engine plane.

The JFK service has held the title of world’s longest scheduled flight ever since, and it will keep it at least until Qantas begins its planned Sydney–London service in late 2027.

The aircraft: built for the job

The A350-900ULR (ULR stands for ultra-long-range) is a specially modified version of Airbus’s mid-size widebody jet. It carries extra fuel capacity and is configured with just 161 seats: roughly 67 in Business and 94 in Premium Economy. There is no standard economy cabin at all.

That configuration is partly about economics. A plane burning enough fuel to cross two-fifths of the planet has to carry that fuel’s weight, so every passenger and bag counts. Airlines fill the plane with higher-yield seats, and passengers get more space as a result.

The A350 itself is also built with long-haul comfort in mind. Compared with older jets, its carbon-fiber airframe allows a lower cabin altitude and higher humidity, which many travelers find reduces fatigue.

What the flight is like

Expect two full meal services plus snacks and drinks on request. In Business, passengers can usually pre-order specific dishes through the airline’s Book the Cook service, which is well suited to a flight this long, since your appetite and body clock will drift over 19 hours.

Typical rhythm of the flight:

• Hours 0 to 2: Departure, first meal service, settling in.
• Hours 3 to 9: Lights dim, many passengers sleep. This is the best sleep window if the flight leaves at night.
• Hours 10 to 14: The fatigue wall. Many travelers report this middle stretch as the hardest.
• Hours 15 to 19: Second meal, cabin lights up, the long descent into New York.

Who should book it, and tips

• Best for: Travelers connecting between Southeast Asia or beyond and the New York area who want to avoid a stop at a Gulf, European, or Pacific hub.
• Seat tip: In Premium Economy, a window seat gives you a wall to lean against. In Business, choose based on whether you plan to sleep (a window-side bed is quieter) or work.
• Booking tip: Compare nonstop fares with one-stop options. A good one-stop itinerary can be cheaper, but total travel time is typically five or more hours longer.

2. Singapore to Newark: The Runner-Up That’s Only 4 Kilometers Shorter

Airline: Singapore Airlines (flights SQ21 and SQ22)
Distance: 15,345 km / 9,535 miles
Scheduled time: about 18 hours 25 minutes from Singapore, roughly 19 hours 10 minutes from Newark
Aircraft: Airbus A350-900ULR
Status: Nonstop daily

Why two near-identical flights?

The New York metropolitan area has three major airports, and Newark Liberty serves the New Jersey side. Singapore Airlines operates both Newark and JFK because the region’s travelers are split between them, and because the daily capacity is valuable. The two routes differ by only 4 kilometers, which is why they sit in first and second place in nearly every ranking.

What the flight is like

The onboard experience is essentially identical to the JFK service. It uses the same aircraft type, the same two-cabin layout, and the same catering philosophy. The practical differences are at the ground level.

• Newark is often easier for New Jersey, Connecticut, and parts of Pennsylvania. If you’re headed to Manhattan, JFK is the more common choice, but Newark’s rail link into Penn Station can be fast.
• Airport experience differs. Terminal layouts, immigration queue lengths, and the time it takes to get a taxi vary by day.

Tips

• If you have a choice of the two, compare final-destination ground transport, not just the flight times.
• A flight this long arrives with little margin for error. Build in an extra buffer for onward connections on the US side.

Real-numbers example: If the flight takes 19 hours 10 minutes and you’re eating two main meals and sleeping for about 7 hours, you’ll have roughly 8 to 9 hours awake in the cabin. Plan your entertainment, work, and stretching around that figure instead of assuming you’ll sleep through most of it.

3. Auckland to Doha: The Route That Briefly Held the Crown

Airline: Qatar Airways
Distance: 14,534 km / 9,031 miles
Scheduled time: roughly 16.5 to 17.5 hours depending on direction
Aircraft: Airbus A350-1000
Status: Currently routed via Adelaide

A record-setter in its own right

Qatar Airways launched nonstop Doha–Auckland in 2017 and, for a time, it was the longest flight in the world. It showed what a Gulf hub airline could do: link New Zealand and Europe or the Middle East in one hop, without needing a stop in Asia or Australia.

The current situation

As noted above, the Auckland flight resumed on 17 June 2026 after a suspension of about three and a half months, but now with a stop in Adelaide. Reports indicate the airline plans to move that stop to Melbourne in December 2026. For travelers, this means the route is no longer a pure nonstop, though it remains a one-stop path to Doha.

What the flight is like

When flown on the A350-1000, the experience is generally strong, particularly in Business, where Qatar’s Qsuite offers a sliding privacy door and flexible configurations. The A350’s quieter cabin and humidity-friendly air help on long segments.

• Business class: Qsuite is among the most praised business products in the sky. The privacy door is a major advantage on an overnight flight.
• Economy: A 3-3-3 layout is typical on the A350, and long-haul economy comfort depends heavily on the seat pitch, your seat selection, and your neighbors.

Tips

• Check whether your specific date shows a nonstop or one-stop routing, and what the layover time looks like.
• Doha’s Hamad International Airport is a major connecting hub, which is helpful if you’re continuing to Europe, Africa, or the Middle East.

4. Perth to London: Australia’s First Direct Link to Europe

Airline: Qantas (flights QF9 and QF10)
Distance: 14,499 km / 9,009 miles
Scheduled time: about 16 hours 50 minutes from London, roughly 17 hours 25 minutes from Perth
Aircraft: Boeing 787-9 Dreamliner
Status: London to Perth nonstop; Perth to London currently via Singapore

Why this route matters historically

When Qantas launched Perth–London in 2018, it became the first scheduled nonstop link between Australia and Europe. For more than a century, the “Kangaroo Route” had required at least one stop. Perth’s position on Australia’s west coast, and its time zone proximity to Asia, made it the natural place to cut that stop.

The aircraft

Qantas flies its Boeing 787-9 on the route, configured with 236 seats: roughly 42 in Business, 28 in Premium Economy, and 166 in Economy. The Dreamliner uses composite materials that allow for higher cabin humidity and a lower effective cabin altitude than older aircraft. Qantas has also highlighted cabin lighting designed to help passengers adjust their body clocks.

What the flight is like

The Perth–London flight is long, but it has a reputation for being manageable. Here are the reasons passengers often give:

• Timing: The flight from Perth typically departs in the evening and lands in the early morning in London. That helps passengers sleep during the night and arrive ready to start the day, depending on their preference.
• Service: Qantas typically offers a main meal soon after departure and another before landing, with a light snack service in between.
• Aircraft: The Dreamliner is a quieter, more comfortable plane than the older generation.

The current routing

Qantas has routed Perth to London flights via Singapore since early March 2026, to avoid payload limits created by the longer path around closed airspace. London to Perth remains nonstop in the schedule. Reports suggest the airline does not plan to restore the nonstop Perth to London service until 2027.

Tips

• For the nonstop direction (London to Perth), keep in mind you’re flying into a headwind-friendly direction in terms of scheduling. The flight is about 35 minutes shorter on the clock than the return.
• If you’re taking the one-stop Perth to London flight, check whether the Singapore stop involves a change of aircraft or remaining onboard.

5. Dallas/Fort Worth to Melbourne: Texas to the Southern Hemisphere

Airline: Qantas
Distance: 14,472 km / 8,992 miles
Scheduled time: up to about 17 hours 40 minutes
Aircraft: Boeing 787-9
Status: Nonstop

Why Dallas?

Dallas/Fort Worth is the largest hub of American Airlines, Qantas’s partner. A nonstop flight to Melbourne means that travelers from dozens of American cities can connect through DFW and reach Australia with just one aircraft change. Qantas also operates the Airbus A380 between Sydney and Dallas, so the airline has a significant presence in the region.

What the flight is like

This is a crossing of the Pacific and then down the length of the Pacific Rim toward Australia. The route is long, but the Dreamliner is well suited to it.

• Business: A lie-flat suite with direct aisle access is standard on Qantas’s Dreamliner.
• Premium Economy: A solid step up in space and service from economy, valuable on a flight this long.
• Economy: A bigger challenge. Taller travelers should prioritize an exit row or aisle seat.

Time-zone realities

Melbourne is 16 to 17 hours ahead of Dallas, depending on daylight saving. In effect, you lose a calendar day. A flight that leaves Dallas in the evening lands in Melbourne roughly two mornings later by the local calendar. This disorienting reality is one reason travelers like to schedule an easy first day.

Tips

• If you’re flying from Melbourne to Dallas, you’ll gain back a calendar day, so you may arrive on the same day you left.
• Arrive at DFW early for the Melbourne flight. Long-haul check-in and boarding often take extra time.

6. Perth to Paris: A Short-Lived Nonstop

Airline: Qantas
Distance: 14,263 km / 8,863 miles
Scheduled time: roughly 16 hours 40 minutes to 17 hours 20 minutes
Aircraft: Boeing 787-9
Status: Not currently operated nonstop

The route’s history

Qantas added Perth–Paris as a second nonstop gateway to Europe from Western Australia, joining Perth–London. It capitalized on France’s popularity with Australian travelers and on strong demand to get from Perth to continental Europe without a Gulf or Asian connection.

Current status

In April 2026, Qantas moved its Sydney–Paris service to stop in Singapore, replacing the previous Perth stop. Flight records for September 2026 showed no Paris–Perth nonstop flights operating. The route remains in the OAG Summer 2026 distance ranking, but it is, for now, a route you can’t count on flying nonstop.

Tips

• If your goal is Paris, check whether Qantas’s current routing via Singapore, or a connection through another hub, gives you the best total travel time and price.
• Because the situation has changed rapidly, build flexibility into your plans and verify routing close to your date of travel.

7. Auckland to New York JFK: The Pacific Meets the Atlantic

Airlines: Air New Zealand and Qantas
Distance: 14,208 km / 8,828 miles
Scheduled time: about 17 hours 50 minutes from New York to Auckland, and roughly 16 hours 10 minutes from Auckland to New York
Aircraft: Boeing 787-9
Status: Nonstop

The asymmetry of the winds

This route is a perfect case study in how the jet stream shapes flight times. Flying from New York to Auckland is scheduled about 1 hour 40 minutes longer than flying the other way, largely because of prevailing westerly winds at cruising altitude. In distance terms, the route ranks seventh. In scheduled time, the New York to Auckland direction is among the longest of any flight operating.

Two airlines, one route

Air New Zealand began its nonstop New York service in 2022, and Qantas added its own nonstop service in 2023. Competing nonstop options mean more schedule choices and more price competition than many ultra-long routes enjoy.

What the flight is like

Air New Zealand has built a reputation for innovation on long routes. Its Skynest sleeper pods, installed on selected 787-9 aircraft, are a standout. They are six lie-flat bunks for Economy and Premium Economy travelers who can book a block of roughly four hours of sleep time for an additional fee. If you’re booked in a cabin without a lie-flat seat, this can be a game changer. Availability depends on the aircraft assigned to your flight, so confirm before you pay.

Qantas’s 787-9 offers a similar experience to its Perth–London product, with lie-flat Business seats, Premium Economy, and Economy.

Tips

• Auckland-bound passengers lose a calendar day crossing the International Date Line, so double-check hotel dates and onward connections.
• For this route, look at both airlines’ schedules, since departure times and aircraft features can differ.

8. Auckland to Dubai: The Giant Double-Decker Option

Airline: Emirates
Distance: 14,199 km / 8,823 miles
Scheduled time: about 17 hours 5 to 10 minutes
Aircraft: Airbus A380-800
Status: Nonstop daily

The only superjumbo on the list

The Airbus A380 is the largest passenger aircraft in the world, and Emirates is its biggest operator. Using the A380 on Dubai–Auckland puts a very large cabin on one of the longest routes on the map.

What the flight is like

The big advantage of the A380 on an ultra-long flight is space and variety. Depending on the aircraft’s configuration, passengers in premium cabins can benefit from features unique to the A380, such as an onboard lounge and, in First Class, shower spas. The aircraft’s size also means a calm, stable ride, and the cabin noise level is notably low.

• Economy: Typically a 3-4-3 layout on the main deck. Window seats offer a place to lean.
• Entertainment: Emirates is known for an extensive in-flight entertainment library, which is a real asset on a 17-hour journey.
• Hub connection: Dubai connects Auckland to dozens of destinations across Europe, Africa, the Middle East and South Asia.

Status in 2026

Despite Middle East disruption, this route was operating nonstop daily in September 2026 according to flight records.

Tips

• On an aircraft this large, boarding and deplaning take longer. Allow extra time if you have a tight connection.
• Pick your seat carefully. Upper-deck economy seats on some A380s are quieter and less crowded, although availability varies by airline configuration.

9. Shenzhen to Mexico City: Asia’s Longest Link to Latin America

Airline: China Southern
Distance: 14,147 km / 8,791 miles
Scheduled time: about 16 hours
Status: Nonstop to Mexico City; return flight via Tijuana

A route defined by altitude

Mexico City’s airport sits at around 2,200 meters (7,300 feet) above sea level. At that altitude, the air is thinner, which reduces the lift engines and wings can produce at takeoff. The result is a lower maximum takeoff weight, and a flight that needs to carry a huge fuel load for a trans-Pacific crossing can’t always do so. That is why the return flight stops in Tijuana. The aircraft can take off from Mexico City with less fuel, refuel at sea level, and then continue across the Pacific.

What the flight is like

The Shenzhen to Mexico City direction is a long Pacific crossing, usually overnight at least in part. It’s a significant link for trade and for communities that span both regions. For travelers, it offers a direct alternative to connecting through the United States or through another hub.

Tips

• Because of the Tijuana stop on the return, check whether you’ll need to stay on board, disembark, or clear any formalities in Mexico.
• If you’re traveling from Mexico City, remember that altitude affects how some people feel after a long flight. Stay hydrated and give yourself a gentle first day.

10. Los Angeles to Singapore: California’s Link to Southeast Asia

Airline: Singapore Airlines
Distance: 14,114 km / 8,770 miles
Scheduled time: about 17 hours 50 minutes
Aircraft: Airbus A350-900
Status: Nonstop daily

Why this one matters

Los Angeles has long been a primary gateway between the US West Coast and Asia. The nonstop to Singapore lets travelers continue onward to Southeast Asia, India, Australia, and beyond via Changi Airport, one of the world’s best-regarded hubs.

What the flight is like

Singapore Airlines is known for consistent service quality and cabin comfort, and that reputation extends to this route. The flight crosses the Pacific from east to west, so it’s typically scheduled as a late-night departure that arrives in Singapore in the early morning, more than a day later by the calendar. Check which A350 variant operates your flight, since cabin configurations differ across the fleet.

• Time difference: Singapore is 15 to 16 hours ahead of Los Angeles, depending on daylight saving.
• Arrival: You land at Changi, which has plenty to offer for a post-flight reset, including gardens, a cinema and showers.

Tips

• If you’re continuing to Australia, Indonesia, India, or elsewhere in Asia, Changi’s connections are among the most efficient.
• Westbound flights across the Pacific typically run longer than the eastbound return because of headwinds.

Honorable Mentions

A few other flights sit just outside the top ten, and the list can shift with the seasons.

• Houston to Sydney (United): At about 13,834 km, this route would rank around ninth when it’s operating. It was not flying in September 2026 and was scheduled to return in late October.
• San Francisco to Singapore: Operated by Singapore Airlines and United, this route sits just outside the top ten.
• Dubai to Los Angeles (Emirates): Ranked thirteenth by distance, but scheduled at about 17 hours 5 minutes, level with Auckland–Dubai in block time.
• Perth to Rome (Qantas): Another long Qantas route that appears on broader lists of the world’s longest flights.

The Next Record: Qantas Project Sunrise

If you want to see the future of ultra-long-haul flying, look at Project Sunrise. Qantas first announced it in 2017, and in 2026 it has become real, with firm dates.

The plan

• Sydney to London: about 17,016 km (10,573 miles), scheduled in the airline’s plan to begin daily service in October 2027, with tickets planned to go on sale from February 2027.
• Sydney to New York: about 16,013 km (9,950 miles), planned to follow from mid-2028.
• Aircraft: The Airbus A350-1000ULR, a modified version with an extra rear center fuel tank. Airbus states the tank adds roughly 1,000 nautical miles of range. At 20,900 liters, it holds about 16.8 tonnes of fuel.
• First aircraft: Qantas’s first A350-1000ULR, named Vega, is due for delivery in April 2027.
• Regulatory caveat: Qantas says the dates depend on regulatory approvals and aircraft certification.

The numbers behind the record

At 17,016 km, Sydney to London would beat the current record by about 1,667 km, roughly 10.9% longer. Qantas expects flight times of up to about 22 hours, with an intended flight time of around 21 hours 40 minutes. For context, that is nearly 43% of the way around the Earth:

17,016 km ÷ 40,075 km ≈ 42.5% of the Earth’s circumference

The cabin

Qantas has fitted the Sunrise A350 with just 238 seats, and about 98 of them (41%) are in First, Business and Premium Economy. The aircraft is designed to include a Wellbeing Zone, a space for passengers to stretch their legs between cabins.

Test flights

Airbus’s first A350-1000ULR test aircraft made its maiden flight on 2 June 2026. In July, it flew nonstop from Toulouse to Melbourne in about 20 hours and returned with Qantas pilots onboard, covering roughly 12,460 nautical miles in 24 hours 24 minutes. The goal was to show the aircraft could handle a 23-hour block time, giving a margin beyond Qantas’s planned 21 hours 40 minutes.

Precedent: the 2019 research flights

In late 2019, Qantas ran test flights between New York and Sydney, and from London to Sydney, with small groups of passengers and crew. These flights took around 19 hours and were used to study how passengers and crew cope with such long durations. The research examined sleep, hydration, movement, and light exposure, and it informed the cabin design for the Sunrise aircraft.

Why the Same Route Takes Longer in One Direction

On many of the routes above, one direction is scheduled more than an hour longer than the other. The reason is the jet stream, a band of fast-moving air at cruising altitude that flows from west to east.

• Eastbound flights often ride the jet stream like a conveyor belt and arrive earlier.
• Westbound flights typically fly into the wind, and airlines schedule more time to account for it.

A few concrete examples:

The most balanced routes tend to be those running mostly north–south or those where route geometry reduces the wind effect. The most lopsided are those crossing the Pacific, where headwinds can be significant.

The Aircraft That Make Ultra-Long-Haul Possible

Twin-engine widebody aircraft now dominate the world’s longest routes. A generation ago, the four-engine Boeing 747-400 flew nine of the ten longest routes. Today the A350 and the 787 are the workhorses, with the A380 as the lone four-engine exception on this list.

Airbus A350-900 and A350-900ULR

Singapore Airlines’ signature ultra-long-haul jet. Its composite structure, efficient engines, and lower cabin altitude suit extremely long flights. The ULR variant carries extra fuel and a premium-only cabin layout.

Airbus A350-1000

A stretched version with more seats and range. Qatar Airways flies it on Auckland–Doha. The ULR version being built for Qantas will push the range further still.

Boeing 787-9 Dreamliner

Qantas flies the 787-9 on Perth–London, Perth–Paris and Dallas–Melbourne. Air New Zealand flies it on Auckland–New York. It’s efficient, quiet and comfortable, and its higher cabin humidity is a significant comfort factor.

Airbus A380-800

The world’s largest passenger jet, used by Emirates on Auckland–Dubai. It’s the only four-engine aircraft on the list, and it offers unique amenities such as onboard lounges on some configurations.

Why efficiency matters

On a 19-hour flight, a large share of the fuel burned goes to carrying the fuel itself. Even small efficiency gains are significant. This is why modern twin-engine jets have made ultra-long routes viable again: they burn far less fuel per seat than the four-engine jets that came before them.

What It’s Actually Like: An Ultra-Long-Haul Survival Guide

Ultra-long flights are manageable with preparation. These strategies are the ones travelers and crew most consistently recommend. They are general travel tips, not medical advice.

Before you fly

Choose your cabin strategically. If your budget allows only one upgrade, Premium Economy is often the most cost-effective on flights this long. You get more legroom, a wider seat, and a better recline for a modest premium over economy. Business class with a lie-flat bed is the real game changer for sleep.

Pick your seat carefully.

• Window seats: A wall to lean on, no one climbing over you, and control of the shade.
• Aisle seats: Easier access to the lavatory and room to stretch a leg.
• Avoid seats near galleys and lavatories, which are busier and noisier.

Start shifting your sleep schedule. A few days before departure, nudge your sleep time toward your destination’s clock where practical.

Check your documents. Ultra-long flights often cross multiple regions. Check passport validity, visa and transit requirements, and any health or entry rules.

On the plane

Set your watch to destination time immediately. This mental shift helps you plan meals, sleep, and light exposure.

Hydrate steadily. Cabin air is dry. Drink water regularly. Limit alcohol and heavy caffeine, which can disrupt sleep and increase dehydration.

Move regularly. Health authorities generally advise getting up and walking the aisle periodically on long flights, and doing seated ankle circles and calf stretches. Long periods of immobility are associated with a higher risk of blood clots. If you have a medical condition, are pregnant, or have had a previous clot, ask your doctor what precautions suit you before flying.

Dress for comfort. Layers, soft fabrics, and shoes that you can slip off help. Some people find compression socks comfortable, but check with your doctor if you have circulatory concerns.

Pack a small comfort kit:

• Eye mask and earplugs or noise-canceling headphones
• A neck pillow or small cushion
• Moisturizing lip balm and facial mist
• Toothbrush and toothpaste
• A change of socks
• Any medication you need, in your carry-on in original packaging

Eat lightly. Heavy meals can leave you sluggish. Choose lighter options and eat according to the destination time where you can.

Sleep strategies

• Time your sleep to the destination’s night. If it’s nighttime at your arrival point, sleep when the cabin lights go down.
• Use light intentionally. Light helps set your body clock. Seek bright light when it’s morning at your destination, and dim or block it when it’s night.
• Don’t force it. Resting with your eyes closed is still valuable even if you don’t fully sleep.

After you land

• Get outside. Sunlight is the single most effective tool for adjusting to a new time zone.
• Stay awake until local bedtime if you can, even if you feel exhausted.
• Keep the first day light. Avoid scheduling major decisions or heavy activity.

Jet Lag: What to Expect After an 18-Hour Flight

Flying across many time zones disrupts your circadian rhythm. The longer the flight and the bigger the time difference, the more noticeable the effect tends to be.

A commonly cited rule of thumb says it takes about one day per time zone crossed to fully adjust, though individuals vary widely and travel direction matters. Many people find eastward travel harder than westward travel.

Time differences vary by daylight-saving changes in each country.

A real-world planning example: Say you land in New York from Singapore at 6 a.m. local time, having been awake or dozing for 19 hours. Your body clock says it’s 6 p.m. in Singapore. If you try to stay awake until 9 or 10 p.m. New York time, you’re fighting your clock for another 15 or 16 hours. That’s tough, but doing it usually helps you reset more quickly than napping through the day.

Nonstop vs. One-Stop: Is the Longest Flight Worth It?

Nonstop ultra-long-haul flights are not for everyone. Here is how to weigh them.

Reasons to choose nonstop

• Time savings: A nonstop flight can save several hours compared with a one-stop itinerary. For example, if a typical one-stop journey takes around 24 hours from door to door and the nonstop takes 19, you save roughly five hours. (This is an illustration; actual times vary by itinerary.)
• Fewer risks: One flight means one boarding process and no connection to miss. Missed connections are one of the biggest causes of stressful trips.
• Baggage: Fewer transfers generally means lower risk of delayed luggage.
• Simplicity: One security screening, one boarding, one landing.

Reasons to choose a one-stop

• Price: One-stop itineraries are often less expensive, since the nonstop product commands a premium.
• A chance to break up the journey: Some travelers find two 9-hour legs easier than one 19-hour leg, especially if they can stretch and shower between flights. Others find that the extra takeoffs, landings, and hub changes are more tiring.
• Health considerations: If you have a medical condition, a break in the journey may be preferable. Speak to your doctor.
• More schedule options: There are far more one-stop options than nonstop options on most routes.

A simple decision framework

1. Compare total travel time, door-to-door, for both options.
2. Compare total price, including baggage and seat selection.
3. Consider your own tolerance for long periods in a seat.
4. Check the cabin product. A great Premium Economy or Business seat on a nonstop can be worth more than the time saved.

Do These Flights Carry Extra Crew?

Yes. Ultra-long-haul flights typically operate with augmented crews: additional pilots and cabin crew who rotate through dedicated rest areas on the aircraft. Pilots take scheduled rest periods in bunks, and cabin crew have their own rest areas, so that those in charge of the aircraft are always rested. Regulators set strict rules on duty time and rest for this kind of operation.

This is one reason passengers should feel comfortable: long-haul crew are trained and scheduled specifically for these flights.

Tips for Booking the World’s Longest Flights

1. Verify the routing before you buy. In 2026, several famous routes have temporary stops. Look at the flight details, not just the route name.
2. Book early for premium cabins. The aircraft on ultra-long routes often have small premium cabins and limited seats.
3. Compare airline partnerships. Some routes are marketed by multiple airlines. Compare schedules, fares, and loyalty program benefits.
4. Use fare alerts. Prices on long-haul routes can vary significantly by date. Be flexible and watch for deals.
5. Check aircraft assignments. The seats and features you expect, such as sleeper pods, may depend on the specific aircraft on your date.
6. Build in buffers. Give yourself extra time for onward connections after a long flight, and consider a rest day at your destination.
7. Consider travel insurance. Long, expensive itineraries are worth protecting. Check what your policy and credit card cover.

Frequently Asked Questions

What is the longest nonstop flight in the world?

The longest scheduled nonstop passenger flight is Singapore Airlines’ Singapore to New York JFK service, covering about 15,349 km (9,537 miles) in roughly 18 hours 50 minutes from Singapore and up to about 19 hours 15 minutes in the other direction.

Which airline operates the longest flights?

Singapore Airlines operates the two longest routes (Singapore to New York JFK and Singapore to Newark). Qantas operates the most routes among the longest fifteen, including Perth–London, Dallas–Melbourne and Perth–Paris.

Will there be a longer flight than Singapore–New York?

Yes. Qantas plans to launch Sydney–London flights in October 2027 on the Airbus A350-1000ULR, with flight times of up to about 22 hours and a distance of roughly 17,016 km. Sydney–New York is planned to follow from mid-2028. Both depend on regulatory approvals and aircraft certification.

Why are some of the longest flights currently not nonstop?

Closures of airspace over parts of the Middle East have forced airlines to take longer routings. When the longer path pushes the aircraft past its payload limits, airlines add a refueling stop. In 2026, this has affected Qatar Airways’ Auckland flights and Qantas’s Perth–London and Paris routes.

How many pilots fly an 18-hour flight?

Ultra-long-haul flights carry augmented crews with extra pilots who rotate through onboard rest areas. Exact crew numbers vary by airline and route.

Is there economy class on the longest flights?

It depends. Singapore Airlines’ A350-900ULR on the New York routes has only Business and Premium Economy. Most of the other routes on this list offer Economy, along with premium cabins.

What is the best cabin for a 17-to-19-hour flight?

Business class with a lie-flat bed is the most comfortable. Premium Economy is typically the best value upgrade. If you’re in Economy, choose your seat carefully and consider paying for extra legroom.

Do these flights have showers or beds?

Showers are found only in First Class on some Emirates A380 aircraft. Lie-flat beds are standard in Business class. Air New Zealand also offers Skynest sleeper pods for Economy and Premium Economy passengers on selected 787-9 aircraft.

How do I avoid jet lag on a long flight?

You can’t eliminate it, but you can reduce it. Adjust your sleep schedule before departure, set your watch to the destination time, hydrate, sleep during the destination’s night, and get sunlight after landing.

Why does the flight take longer in one direction?

The jet stream, a high-altitude band of fast winds, typically flows from west to east. Eastbound flights get a tailwind and westbound flights face a headwind, so airlines schedule more time for the westbound direction.

Is it safe to fly for 19 hours?

Ultra-long-haul flights are operated under the same safety standards as other commercial flights, with additional requirements on crew rest and fuel planning. Health considerations, such as blood clot risk on long flights, are worth discussing with a doctor if you have concerns.

How much fuel does an ultra-long-haul flight carry?

A great deal. As one example, the extra rear fuel tank on Qantas’s Project Sunrise A350 holds about 20,900 liters, equal to roughly 16.8 tonnes of jet fuel. That is only the extra tank and not the full fuel load.

Are the longest flights more expensive?

Often, yes, particularly in premium cabins, because the nonstop product commands a premium and capacity is limited. But nonstop fares can be competitive, and some travelers find the time savings worth it. Compare against one-stop options.

Final Thoughts

The longest nonstop flights in the world are feats of engineering, planning, and endurance. They compress what used to be two or three flights into one, connecting cities on opposite sides of the planet in less than a day. In 2026, the list is also a snapshot of a changing industry: a record that has stood since 2020, a new contender arriving in 2027, and a set of routes temporarily reshaped by airspace closures.

If you’re considering one of these flights, the most important advice is simple. Verify the current routing, choose the cabin and seat that match your needs, and treat the flight as part of the trip rather than something to get through. With some preparation, even a 19-hour journey can be a comfortable one.