WASHINGTON, July 10 (Reuters) - JetBlue Airways ( JBLU )

asked the U.S. Transportation Department on Wednesday to

disqualify United Airlines from winning one of five new

roundtrip flights from congested Washington Reagan National

Airport.

JetBlue ( JBLU ) said United's proposal to add a Washington to Los

Angeles flight should be rejected because it would take off

before 7 a.m. and the airline said that is prohibited by

Congress. On May 16, President Joe Biden signed legislation

creating the new flights at the busy airport in Arlington,

Virginia, outside the nation's capital.