WASHINGTON, Dec 17 (Reuters) - The U.S. Transportation

Department on Tuesday finalized its awards of five new daily

round-trip flights from Washington Reagan National airport to

major airlines.

The flights at the busy airport in Arlington, Virginia,

outside the nation's capital were mandated under legislation

signed in May by President Joe Biden. American Airlines

Delta Air Lines, United Airlines, Southwest

Airlines ( LUV ) and Alaska Airlines all are receiving

new flights after the department made tentative awards in

October. Carriers are to start new flights within 90 days.