World's longest flight set to take off

Singapore Airlines is scheduled to premiere a non-stop flight from Singapore to New York that will cover 16,700km and last a whopping 18 hours and 45 minutes.

The record-breaking flight, which departs at 23.35pm local time (0235 Friday AEDT) on an Airbus A350-900ULR, will unseat Qatar Airways from the current record for the world's longest flight - a 17-hour 40-minute marathon journey from Doha to Auckland.

But passengers on the Singapore Airlines flight need not fret over cramped economy seats during the ultra-long-haul flight. The plane has been configured in a two-class layout that features only 67 business class and 94 premium economy class seats.

A cursory check on the Singapore Airlines website showed that one-way tickets from Singapore to Newark were going for $US2594 ($A3,667) in premium economy and $US5560 ($A7,860) in business class.

Newark Liberty International Airport is in New Jersey but it is just 19km outside New York City and is one of three major airports serving the New York metropolitan area.

The route will initially be served three times a week, with daily operations expected to commence from 18 October onwards.

This is not the first time the airline has flown from Changi Airport to New York.

The relaunch comes after Singapore Airlines suspended services on the route in 2013 after climbing fuel prices made the use of four-engine Airbus A340-500 jets an economic liability.

However, the flight may not hold the mantle of world's longest for long. Qantas chief Alan Joyce announced plans in August to introduce a direct flight between Sydney and London within the next four years that would take a total of 20 hours.

© DPA 2018