Qantas has successfully completed a 24-hour test flight as part of its efforts to launch non-stop services between Sydney and London, as well as Sydney and New York, next year. The specially modified Airbus A350-1000ULR completed the longest non-stop flight ever flown by a commercial airliner, covering 14,338 miles from Toulouse, France, to Melbourne, Australia, in 24 hours and 24 minutes.

The flight, designed to push the endurance limits of ultra-long-haul air travel, exceeded the planned distance for the upcoming Sydney-London route, which is expected to take between 19 and 22 hours. By eliminating the usual intermediate fuel stop, Qantas expects to reduce the journey time by approximately four hours on its routes connecting Australia’s east coast with the United Kingdom and the United States.

The Airbus A350 involved in the test flight carries additional fuel tanks installed within its fuselage, allowing it to transport an extra 16 tonnes of fuel. A crew of five pilots, including both Qantas and Airbus test pilots, and five Airbus engineers were on board to monitor performance and ensure safety throughout the mission. Airbus test pilot Xavier Pepin explained that fatigue management was a priority during the flight, with the crew operating on four-hour shifts and rotating every two hours. During portions of the flight, at least one Airbus pilot occupied a flight deck seat alongside a Qantas pilot for enhanced mission safety.

To improve passenger comfort during these extended flights, Qantas has introduced innovations such as advanced cabin lighting designed to adjust passengers’ circadian rhythms toward the destination time zone. The aircraft's cabin pressure is maintained at a lower equivalent altitude than typical airliners, and humidity levels have been increased, measures intended to mitigate fatigue and dryness commonly associated with long-haul air travel. Exercise zones will also be available to help passengers stay active during nearly full-day journeys connecting distant cities.

This development builds on Qantas’s experience operating the world’s previous longest non-stop flight, a Boeing 787 service between London and Perth initiated in 2018, lasting approximately 17 hours. Historically, flights between London and Sydney took around 55 hours and required multiple technical stops along what was known as the “Kangaroo Route,” involving piston-engine aircraft with stops in cities including Rome, Beirut, Karachi, Bombay, Singapore, and Darwin.

The upcoming ultra-long-haul services will utilize a fleet of 12 Airbus A350-1000ULR aircraft specially developed for Qantas. Flight routing will be adaptable, with journeys sometimes directed eastward over the Pacific and Arctic to take advantage of prevailing tailwinds and avoid headwinds in high-altitude jet streams, rather than following the conventional northwest route over Asia. Qantas aims to offer a new standard in long-distance air travel by combining record-breaking range with innovations focused on passenger well-being.