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United Airlines will soon offer direct flights between San Francisco and Singapore, the longest nonstop flight by a U.S. carrier, Bloomberg reported. 

The airline will begin flying the nonstop daily trip June 1 in Boeing’s 787-9 aircraft, Bloomberg said.

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The flight will last roughly 16 hours and 20 minutes, which will save travelers about four hours compared to United’s current services via Japan’s Narita airport, according to Bloomberg.

Thanks to new aircraft technology introduced by Airbus Group SE and Boeing, along with lower fuel costs, Emirates and Qantas Airways, and now United, are able to make these long direct flights happen, Bloomberg said.

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Singapore Airlines offered the world’s longest nonstop flight from Singapore to New York until 2013. The airline plans to bring back the direct service in 2018, Bloomberg reported.

Qantas’s route between Syndney, Australia and Dallas is currently the world’s longest nonstop flight, but Emirates will take over that top spot in February when the airline offers direct flights between Panama City and Dubai, Bloomberg said.

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