Thousands of travelers are still facing delays and canceled flights at Dallas-Fort Worth International Airport a day after massive storms packing tornadoes rolled through north Texas.

The flight-tracking service FlightAware estimated that cancelations affected 50,000 travelers on Tuesday and 30,000 on Wednesday.

American Airlines says more than 400 flights in and out of the airport have been canceled for Wednesday after about 800 flights were canceled Tuesday.

American is still inspecting nearly 100 planes for possible hail damage.

Southwest Airlines says things have returned to normal at its Dallas Love Field base, where more than 45 flights were canceled on Tuesday.

Sometimes storms near a hub airport can cause ripple effects with delays and cancelations stretching across the country. A July 2011 hailstorm in Denver sidelined some planes for weeks.