United Airlines recently introduced flights from its hub in Los Angeles to Singapore, covering a distance of 14,000 km. The entire journey takes 17 hours and 55 min. on the outbound leg, whereas, and on the way back, the journey is a little shorter with 15 hours and 15 min. The route is once-daily and is being operated by a Boeing 787-9 Dreamliner equipped with 252 seats configured in a 3-class layout, 48 in the business class, 88 in the economy plus, and 116 in the regular economy. October 29th, 2017 saw the inauguration of this service.
In 2013, Singapore Airlines (SIA) had discontinued the nonstop trans-pacific flights services to Los Angeles after they decided to retire its 4-engine Airbus, named A340-500. At the same time, it also halted the services of nonstop trans-arctic flights to New York from Singapore. However, both the destinations are still being served with stopover flights. The 13,600 km long, San Francisco-Singapore route is already being served once per day by both the carriers, with SIA deploying an A350-900 and United using a 787-9.
SIA has revealed its plans to resume the nonstop flight services on New York-Singapore and Los Angeles-Singapore routes by 2018, after procuring its first A350-900ULR, which is an ultra-long-range variation of the next-generation aircraft. The new aircraft will be configured with 68 seats in the business class and 94 seats in the premium economy. Previously, Qantas, an Australian flag carrier, held the record for the longest flight from the U.S., which flies nonstop between Dallas and Sydney, covering 13,800 km.