American Airlines canceled nearly all departures from its hub at Dallas-Fort Worth International Airport and the airport says hail damaged dozens of planes as powerful storms and tornadoes moved through the area on Tuesday.
DFW Airport spokesman David Magana says more than 110 planes were damaged by hail. It wasn't clear how many belong to American Airlines, but American and American Eagle had pulled 101 planes out of service for inspections.
American had canceled more than 450 flights by late Tuesday afternoon.
Southwest Airlines says it canceled more than 45 flights in and out of its big base at Dallas Love Field. Spokesman Paul Flaningan says no Southwest planes were damaged.
The Federal Aviation Administration says delays that had averaged nearly three hours earlier in the afternoon were getting shorter by evening.