Ultra-long-haul flying has made it possible to travel between cities more than 14,000 km apart without a fuel stop. In 2026, the longest scheduled non-stop passenger routes stretch across the Pacific, Indian Ocean and other major air corridors, with some keeping passengers airborne for close to 20 hours.

Here are some of the longest currently operating routes, ranked broadly by great-circle distance.

New York to Singapore

Airline: Singapore Airlines


Distance: About 15,330 km


Scheduled time: Around 19 hours 15 minutes

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Singapore Airlines’ New York to Singapore service currently holds the top spot among scheduled non-stop passenger flights. The route covers roughly 15,330 km and can take close to 20 hours.

Screengrab of NY-Singapore flight schedule

Newark to Singapore

Airline: Singapore Airlines


Distance: About 15,330 km


Scheduled time: Around 18–19 hours

Singapore’s other New York-area service, to Newark Liberty International Airport, is only a few kilometres shorter than the JFK route. It ranks among one of the world’s longest scheduled non-stop flights.

Screengrab of Newark-Singapore flight schedule

Perth to London

Airline: Qantas Airways


Distance: About 14,500 km


Scheduled time: Around 17 hours 20 minutes to 18 hours

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Qantas’ direct Perth–London route links Western Australia with the UK in a single flight. The route covers approximately 14,500 km.

Dallas/Fort Worth to Melbourne

Dallas-Melbourne flight schedule

Airline: American Airlines (operated by Qantas Airways)


Distance: About 14,470 km


Scheduled time: Around 17 hours 40 minutes

Qantas also operates a direct service between Dallas/Fort Worth and Melbourne. At approximately 14,470 km, it ranks among the longest non-stop passenger routes in the world, with scheduled flying time of roughly 17 and a half hours.

These ultra-long-haul services rely on aircraft designed for extended operations, with larger fuel capacity, efficient engines and configurations tailored for long journeys. Airlines also have to account for factors such as crew rest, fuel requirements, alternate airports and weather conditions when planning these flights.

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