Qantas, Australia's flag carrier, plans to launch the world's longest route by 2022, Quartz reports. The proposed qantas flight from Sydney to London would take 20 hours and 22 minutes.

Qantas has a business plan for the world's longest route but has no aircraft on board. Qantas has asked Boeing and airbus to submit aircraft and configuration plans capable of flying the route. Aircraft manufacturers may need to reduce aircraft weight as a solution. That means fewer passengers and cargo, but more legroom, and perhaps even a lounge or gym on board.

Excluding stopovers and transfers, the route will cut sydney-london travel time by three hours and 45 minutes. Whichever flight qantas chooses, it will also be able to fly directly to Sydney and New York, saving passengers two hours and 45 minutes.

At present, the longest route in the world is the 9537-mile Newark, New Jersey - Singapore route operated by Singapore airlines. The route was disrupted by high oil prices but resumed in 2018. The second longest is the 9,032 mile route from doha to Auckland operated by Qatar.

Source: civil aviation resources network