• In this July 28, 2014 file photo, a Delta Air Lines jet takes off from Ronald Reagan Washington National Airport in Arlington, Va.   Most restrictions on flights between the U.S. and Mexico will lift on Sunday, Aug. 21, 2016, a change expected to bring more options and possibly lower prices for travelers. American, Delta and Southwest have already announced that they will offer new flights across the border later this year. United is watching the demand for flights and will respond accordingly, a spokesman said. (AP Photo/Manuel Balce Ceneta, File)

    Most limits on US-Mexico flights are about to be lifted

    DALLAS (AP) — Most restrictions on flights between the U.S. and Mexico will lift on Sunday, a change expected to bring more options and possibly lower prices for travelers.