Singapore Airlines Flights 21 and 22

Singapore Airlines Flights 21 and 22 (SQ21/SIA21 and SQ22/SIA22, respectively) are airline routes operated by Singapore Airlines between Singapore Changi Airport (SIN) and Newark Liberty International Airport (EWR). They were the two longest regularly scheduled non-stop flights in the world, until surpassed by Singapore Airlines Flights 23 and 24 (SQ23 and SQ24) between Singapore Changi Airport and John F. Kennedy International Airport (JFK) in November 2020.

Source: Wikipedia — Singapore Airlines Flights 21 and 22 (CC BY-SA 4.0)