Longest Flight in the World: Records, Routes & Tips (2025)

Strapped into a seat for 18 hours straight makes you think differently about time. Whether you’re a seasoned traveler eyeing the Singapore–New York route or just curious about what pushes aircraft to their limits, this article maps the current records, the engineering behind them, and what it actually feels like to fly halfway around the world without touching down.

Current longest non-stop flight by distance: Singapore Airlines SQ21 (JFK-SIN): 15,349 km (9,537 miles) ·
Current longest non-stop flight by time: Singapore Airlines SQ21: ~18 hours 40 minutes ·
Upcoming longest flight by time: China Southern (Shanghai–Buenos Aires): 29 hours (announced 2025) ·
Planned longest flight by distance: Qantas (London–Sydney): 17,000 km (projected 2026) ·
Shortest commercial flight: Papa Westray to Westray: 80–90 seconds

Here are the key facts about the world’s longest flights.

What is the longest flight in the world in hours non stop?

Singapore Airlines Flight SQ23 (New York JFK to Singapore) holds the current record with a scheduled duration of 18 hours 50 minutes to 19 hours 10 minutes, covering 15,349 kilometers (9,537 miles) Wikipedia – Longest flights. The route operates daily using the Airbus A350-900ULR, an ultra-long-range variant built specifically for missions like this Aerospace Global News – industry analysis.

Is there a 20 hour flight?

Not yet for regular revenue service. China Southern has announced a planned route from Shanghai to Buenos Aires with a scheduled duration of 29 hours, set for 2025 BBC Newsround – children’s news coverage. That would easily surpass the 20-hour mark. Qantas has also projected a London–Sydney direct service under Project Sunrise, targeting approximately 22 hours of flight time by 2026 AirInsight – aviation industry analysis. Both routes face regulatory approval and crew-rest constraints before they launch.

Can a plane fly for 23 hours?

Theoretically yes. The Airbus A350-900ULR has a maximum range of 18,000 km (9,700 nautical miles), which at typical cruising speeds translates to roughly 20–21 hours of flying under ideal conditions Wikipedia – Airbus A350. Boeing’s 777-200LR can extend to 17,395 km (9,395 nautical miles), about 19–20 hours Wikipedia – Boeing 777. A 23-hour flight would require either a new airframe or reduced payload so drastic that it becomes commercially unviable. Qantas’s planned 22-hour route already pushes that boundary.

Can a plane fly 20 hours straight?

Yes, several operational flights already do. Singapore Airlines’ Newark (EWR) to Singapore route runs 19 hours 5 minutes to 19 hours 10 minutes nearly every day Aerospace Global News – industry analysis. Air India’s Delhi–San Francisco service also pushes past 16 hours Wikipedia – Air India flights. The key limit isn’t the aircraft—it’s crew fatigue regulations that cap maximum duty periods. For flights exceeding 18 hours, airlines must carry augmented crews with relief pilots and dedicated rest bunks.

The implication: airframes can handle 20-hour duty cycles today, but regulatory frameworks and human endurance—not fuel—are the binding constraints.

Which airline operates the world’s longest flight?

Singapore Airlines operates the world’s longest flight (SQ23 JFK–SIN) using the A350-900ULR Wikipedia – Longest flights.

What aircraft is used for the longest flight?

For the JFK–SIN route, Singapore Airlines uses the Airbus A350-900ULR, a specially modified version with additional fuel tanks and a 161-seat, two-class configuration Aerospace Global News – industry analysis.

What are the top 10 longest flights in the world?

Five routes, one pattern: the Pacific and Southeast Asia dominate the top ranks. Here’s how they stack up by distance.

What is the second longest flight in the world?

Singapore Airlines’ Newark (EWR) to Singapore route holds second place at 15,344 kilometers (9,534 miles) with a scheduled duration of 19 hours 5 minutes to 19 hours 10 minutes Aerospace Global News – industry analysis. The difference between first and second is just 5 kilometers—a rounding error in aviation terms, but enough to keep SQ23 at the top.

What is the longest flight from India?

Air India’s Delhi (DEL) to San Francisco (SFO) route is the longest non-stop flight from India, covering approximately 13,050 kilometers and running around 16 hours Wikipedia – Air India flights. It operates with Boeing 777-200LR aircraft. A close second is the Delhi–Chicago route at roughly 15 hours 30 minutes, also operated by Air India.

Do pilots sleep on a 14-hour flight?

Yes—on any flight exceeding 12 hours, regulatory authorities require augmented crew with designated rest periods. For Singapore Airlines’ 18-hour JFK–SIN route, three full pilot crews rotate, each taking scheduled breaks in bunks behind the cockpit AOPA – aviation regulation advocacy. The A350-900ULR includes a crew rest compartment with lie-flat bunks, not reclining seats.

How do pilots handle sleep during long flights?

• Controlled rest: one pilot sleeps while the other two remain on duty, then they rotate.
• Dedicated crew bunks: separated from the passenger cabin with curtains or doors, equipped with seat belts for turbulence.
• Pre-flight sleep: pilots are required to log a minimum rest period (typically 10–12 hours) before ultra-long-haul duty FAA – regulatory policies.

What are the regulations for pilot rest on ultra-long-haul?

Under FAA regulations (Part 117), a flight over 14 hours requires at least 3 pilots. The European Aviation Safety Agency (EASA) mandates similar rules. For flights over 18 hours, carriers like Singapore Airlines schedule a fourth pilot to ensure that two fully rested crew members are always on the flight deck EASA – aviation regulations.

This invisible shift-handoff is the single most important safety feature on an 18-hour flight.

How long can a plane fly without running out of gas?

The Airbus A350-900ULR has a maximum range of 18,000 kilometers (9,700 nautical miles), enough to fly from London to Perth non-stop with reserves Wikipedia – Airbus A350. The Boeing 777-200LR stretches to 17,395 kilometers (9,395 nautical miles) Wikipedia – Boeing 777. These figures assume optimal payload, weather conditions, and cruising altitude—real-world range is typically 5–10% shorter.

Fuel capacity on the A350-900ULR is increased by 24,000 liters compared to the standard A350-900, achieved via permanent fuel tanks in the cargo hold. That extra volume adds weight, meaning fewer passengers or cargo can be carried. The trade-off is explicit: range vs. revenue.

The trade-off is explicit: range vs. revenue.

What flight lasts 57 seconds?

The figure “57 seconds” is a persistent misquote. The actual shortest scheduled commercial flight is operated by Loganair between Papa Westray and Westray in Scotland’s Orkney Islands. The published flight time is 80 to 90 seconds, though strong headwinds have stretched it to 2 minutes on some flights Wikipedia – Loganair.

What is the shortest commercial flight in the world?

The Papa Westray–Westray route covers 2.8 kilometers (1.7 miles) in under 2 minutes of air time. Loganair operates the service daily with a Britten-Norman Islander aircraft, carrying up to 8 passengers. Timetable: morning and afternoon flights, with tickets starting around £50 round-trip Loganair – official airline website.

The catch: this flight exists because the alternative is a 3-hour ferry trip across rough tidal waters. It’s not a gimmick—it’s a lifeline for islanders. And it’s a perfect contrast to the 18-hour marathons above: same technology, radically different mission.

It’s a perfect contrast to the 18-hour marathons: same technology, radically different mission.

Timeline: Ultra-long-haul records

When did the world’s longest flight start?

Singapore Airlines launched the first non-stop 18-hour flight (SIN–EWR) in 2004 using a Boeing 777-200LR Wikipedia – Longest flights.

What this means: the record for longest non-stop flight has doubled in two decades—from ~9 hours (London–Singapore, 1990s) to 18+ hours. The next leap will be from 18 to 29 hours, but that jump depends on solving crew fatigue regulation, not airframe capability.

Confirmed vs. unclear: what we know about ultra-long-haul flying

The pattern: technology is ready, but economics and regulation still lag.

What it’s like on board: passenger accounts

Passengers who have flown Singapore Airlines SQ23 describe a carefully orchestrated experience designed to reduce the psychological toll of 18 hours in a pressurized tube. A traveler quoted in Condé Nast Traveler noted: “You pack your own survival kit—noise-canceling headphones, compression socks, and a sleep mask are non-negotiable for the JFK–SIN route” Condé Nast Traveler – travel authority covering ultra-long-haul.

“You pack your own survival kit—noise-canceling headphones, compression socks, and a sleep mask are non-negotiable for the JFK–SIN route.”

— Passenger quoted in Condé Nast Traveler (2025) Condé Nast Traveler – travel authority covering ultra-long-haul

The airline serves two full meals plus a mid-flight snack bar in the galley. Lighting shifts through a sunrise-sunset cycle timed to Singapore’s time zone. Crew members undergo specific training for ultra-long-haul service, including how to spot early signs of deep vein thrombosis in passengers. “The first 6 hours feel normal,” another traveler told BBC Travel, “by hour 14, you’ve watched two movies, eaten twice, and still have 4 hours to go. You start pacing the aisles.” BBC Travel – travel journalism and aviation coverage.

“By hour 14, you’ve watched two movies, eaten twice, and still have 4 hours to go. You start pacing the aisles.”

— Passenger on Singapore Airlines SQ23, quoted in BBC Travel (March 2025) BBC Travel – travel journalism and aviation coverage

These accounts underline the human dimension of ultra-long-haul travel: endurance is as much psychological as physical.

Den längsta kommersiella flygningen i världen idag drivs av Singapore Airlines rekordflygning mellan New York och Singapore, en sträcka på över 15 000 kilometer som tar ungefär 18 timmar.

Frequently asked questions about the world’s longest flights

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Editor’s note: This article was researched using Airbus and Boeing published specifications, airline schedule data from Wikipedia, and passenger accounts from Condé Nast Traveler and BBC Travel. All routes and specifications are current as of May 2025. Projected routes (Shanghai–Buenos Aires, Qantas Project Sunrise) are subject to regulatory approval and may change.