Singapore Airlines takes back the title of Worlds Longest Flight today when SIA22 operates Singapore - New York Newark. Operated by an A350-900ULR (ultra long range). Flight time according to Flightaware is scheduled at 17 hours and 33 minutes.
https://flightaware.com/live/flight/...545Z/WSSS/KEWR
A350-900ULR wiki page:
https://en.wikipedia.org/wiki/Airbus...WB#A350-900ULR
Seat guru seat map of the aircraft:
https://www.seatguru.com/airlines/Si...350-900ULR.php