A large wintry storm that struck the Southeastern U.S. over the weekend continued to disrupt travel on Monday.
American Airlines said it canceled 415 flights scheduled for Monday, on top of 1,200 that it grounded on Sunday.
The storm dumped snow and sleet across the Carolinas and Virginia, causing treacherous travel conditions. About 175,000 customers were without power on Monday morning, said Duke Energy.
More than 380 flights in and out of Charlotte Douglas International Airport, about a quarter of the American Airlines hub's scheduled departures and arrivals, according to flight-tracking site FlightAware.com.
"Operations at our Charlotte hub will begin to normalize this morning, with scatted cancellations expected throughout the day," American Airlines said in a statement on Monday. "The majority of these cancellations will be on smaller, regional aircraft."
American waived date-change fees for travelers booked in or out of nine airports in the path of the storm if they can fly through next Saturday, Delta Air Lines and JetBlue Airways also waived date change fees.
Southwest Airlines doesn't not charge travelers a flat fee to change their dates, but said customers impacted by the storm wouldn't have to pay the difference in fare for changing their dates, if they can travel within two weeks of the original travel date.
Airlines in recent years have started canceling flights ahead of time when severe weather hits, an effort to avoid stranding passengers, crews and aircraft in the path of a storm, which can cause additional chaos and delays.