The 15 Longest Non-Stop Flights in the World (2026)

The longest non-stop commercial flight in service today covers 15,349 km (9,537 miles) and keeps passengers in the air for nearly 19 hours: Singapore Airlines flight SQ23 from New York JFK to Singapore Changi. The list below ranks the top 15 longest scheduled passenger routes in mid-2026, with distance in both kilometers and miles, the aircraft type, and scheduled block time.

Ultra-long-haul flying is a young category — when Singapore Airlines first launched Newark–Singapore in 2004, no other carrier came close. Twenty years later, eight different airlines operate routes longer than 13,500 km, and the next milestone is already on the calendar. Qantas' Project Sunrise Sydney–London (~17,000 km, ~20 hours) is confirmed for October 2027 and will become the world's longest non-stop the day it launches.

The Top 15 Longest Flights in 2026

"Longest" here means the greatest great-circle distance between the two airports of a scheduled, non-stop passenger flight that is bookable by the public. It is a distance ranking, not a ranking by block time: winds and routing mean a shorter route can take longer in the air.

Distances are great-circle (the shortest path over Earth's curved surface, calculated with the Haversine formula). Actual flight paths are slightly longer because aircraft follow jet streams, weather, and air-traffic routing. Scheduled times are the airline-published block times for the longer direction (headwinds always make the westbound leg slower).

Note: Flight times do not necessarily increase with distance. Winds, routing, and operational factors can make a shorter route take longer than a longer one.

Tap any route to see the great-circle distance, estimated flight time, and a map on SnapDistance.

Coming in 2027: Qantas Project Sunrise

Full breakdown: Project Sunrise — Sydney to London non-stop on the A350-1000ULR.

On 2 June 2026 Airbus rolled the first A350-1000ULR out of its Toulouse final-assembly line — the aircraft purpose-built for Qantas Project Sunrise. The route will connect Sydney (SYD) to London Heathrow (LHR) non-stop, a great-circle distance of roughly 17,000 km (10,563 miles), with a scheduled block time of around 20 hours. New York non-stops from Sydney are expected to follow.

Qantas has configured the cabin for ~238 passengers — about 100 fewer than a standard A350-1000 — to make room for crew-rest bunks, a stretching zone, and additional fuel. When SYD–LHR enters service in October 2027, every other route on this page will be bumped down a rank.

How Far is 15,000 km, Really?

Earth's circumference at the equator is about 40,075 km. So the JFK–Singapore route covers roughly 38% of the way around the planet in a single flight. Put differently:

• 15,349 km is nearly 4 times the distance from New York to Los Angeles, and almost 3 times London to New York.
• It is roughly 40 times the distance from New York to Boston.
• It would take a car driving non-stop at 100 km/h about 6 days and 9 hours — assuming an impossible straight line over the Pacific.

The Two Aircraft That Make It Possible

Only a handful of aircraft can fly more than 14,000 km with a full passenger payload. The current ultra-long-haul fleet is dominated by two types:

Airbus A350-900ULR

Singapore Airlines is the sole operator. The "ULR" (Ultra Long Range) variant carries 24,000 liters of extra fuel in modified center tanks — no extra fuel tanks, just clever use of the existing structure — and seats just 161 passengers in a two-class layout. It holds five of the top ten longest routes.

Boeing 787-9 Dreamliner

Qantas, Air New Zealand, and United use the 787-9 for routes between 13,000 and 14,500 km. Its composite airframe is lighter than aluminum equivalents, and the cabin is pressurized to a lower equivalent altitude (1,800 m vs 2,400 m on older types) — meaningful when you're inside it for 17 hours.

What an 18-Hour Flight Actually Feels Like

The pacing of an ultra-long flight is different from a normal redeye. Cabin crew typically serve dinner shortly after takeoff, then dim the cabin for an extended 8–10 hour sleep window, followed by a mid-flight snack service, a second meal before landing, and a final cabin tidy. Crews operate in shifts using sealed crew-rest compartments above or below the main deck.

Passengers report that the second half of the flight is the easier one: once you've passed the 10-hour mark, landing is closer than takeoff. Hydration, light meals, and getting up to walk every couple of hours are the consistent advice from frequent ultra-long-haul flyers.

How the List Has Evolved

According to OAG Schedules Direct data (OAG, 2025), the average distance of the top 10 longest non-stop routes was about 12,665 km in 2000, climbed to 13,520 km in 2010, and reached 14,504 km in 2025 — a 14.5% increase in a quarter century. The trend has two drivers: aircraft like the A350 and 787 made it economical to fly thinner long-haul routes, and demand for one-stop convenience between previously-disconnected city pairs (Auckland–Doha, Perth–Paris, Bengaluru–San Francisco) is now strong enough to sustain daily widebody service.

Why Distance, Not Time, Is the Honest Ranking

Lists ranked by flight time can be misleading: a route can be slow because of headwinds, not because it's long. SQ24 (Singapore to Newark) is sometimes listed as the world's longest because it takes 18h 45m, but it covers fewer kilometers than its sister route SQ23 westbound. The flight time vs distance guide walks through why headwinds add 30–90 minutes to a transcontinental crossing.

Ranking by great-circle distance — the same number you get from a distance calculator — removes the wind effect and gives a stable comparison between any two airports on Earth.

Frequently Asked Questions

What is the longest non-stop commercial flight in the world?

As of June 2026, the longest scheduled non-stop commercial flight is Singapore Airlines SQ23 from New York JFK to Singapore Changi, covering 15,349 km (9,537 miles) in approximately 18 hours 50 minutes. It is operated by an Airbus A350-900ULR.

Will any flight be longer than JFK–Singapore?

Yes. Qantas Project Sunrise — Sydney to London Heathrow non-stop — is scheduled to launch in October 2027. At roughly 17,000 km and around 20 hours, it will immediately become the world's longest scheduled flight.

What aircraft fly the longest routes?

Two types dominate: the Airbus A350-900ULR (used by Singapore Airlines for all of its 14,000 km+ routes) and the Boeing 787-9 Dreamliner (used by Qantas, Air New Zealand, and United for routes between 13,000 and 14,500 km).

How is distance measured for these flights?

Distance is calculated as the great-circle distance — the shortest path between two points on the surface of a sphere — using the Haversine formula. Actual flight paths are slightly longer because aircraft route around weather, restricted airspace, and into favorable jet streams.

Why are the eastbound and westbound flight times different?

The jet stream blows west-to-east. Flying with it (eastbound) is faster; flying against it (westbound) adds 30–90 minutes to a transcontinental flight. Singapore Airlines SQ23 westbound takes about 50 minutes longer than the eastbound SQ24, despite covering the same physical distance.

Are ultra-long-haul flights more dangerous than shorter flights?

No. They follow the same ETOPS (Extended-range Twin-engine Operations) certification standards as shorter routes, and modern twin-engine widebodies are certified for up to 370 minutes from the nearest diversion airport. Long flights mean more time over remote oceans, but the safety standards are identical.

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Sources: OAG Schedules Analyser (April 2026 update), Flightradar24, Airbus and Qantas press materials, airline-published timetables. Distances are great-circle from airport reference coordinates supplied by OpenStreetMap contributors. Last verified: June 18, 2026.