Singapore Airlines Flights 23 and 24 (SQ23/SIA23 and SQ24/SIA24, respectively) are the longest regularly scheduled non-stop flights in the world, operated by Singapore Airlines between Singapore Changi Airport and New York–JFK. The route launched on 9 November 2020. The route has a great circle distance of . However, SQ24 to New York is typically flown a ground distance of around over the Pacific Ocean where jet stream winds can assist; while SQ23 back to Singapore sometimes opts, instead of the westward polar route, to fly a ground distance of eastward, across the Atlantic Ocean, when favorable jet stream winds assist to save both flying time and fuel. The flights originally used an Airbus A350-900. On January 16, 2021, the route was changed to operate using an Airbus A350-900ULR. See also Singapore Airlines Flights 21 and 22 Longest flights References Commercial flights Transport-related lists of superlatives Longest things