SAN FRANCISCO, Oct. 1 (Xinhua) -- U.S. major air carrier, United Airlines, said Monday that it will debut its newest Boeing 787-10 Dreamliner passenger jets in January next year to boost transcontinental flights between New York/Newark and west coastal cities of San Francisco and Los Angles.

Starting on Jan. 7, 2019, United Airlines will be the first North American air carrier to operate the Boeing 787-10, the newest aircraft in the Dreamliner family, on the transcontinental routes from New York/Newark to destinations on the west coast.

The company said it will offer customers more than 7,200 seats, with more than 1,000 premium seats per day, more than any other airline when they schedule their cross-country, transcontinental travels.

United Airlines has revved up the number of flights from New York to Los Angeles and San Francisco to 27 daily flights, which allows more choices for customers.

"We have created the best schedule for our business and leisure customers by offering more choice and more convenience when planning travel between coasts," said Ankit Gupta, United's vice president of Domestic Network Planning and Scheduling.

The Boeing 787-10 widebody aircraft can fly up to about 10,348 km while saving 20 percent more fuel than older generation airplanes, according to Boeing statistics.

United Airlines, which is the world's third-largest airline by revenue after American Airlines and Delta Air Lines, also announced Monday an order to buy an additional nine 787-9 aircraft that are expected to be delivered by 2020.

The Chicago, Illinois-based company currently operates 25 Boeing 787-9 and 12 Boeing 787-8 Dreamliner aircraft, and its Dreamliner fleet is set to grow to 40 by the end of this year, with 20 more on order.?