Thousands of flights were canceled on Monday as another winter storm hit the U.S. over the weekend.
American Airlines said it had canceled 375 flights including 140 flights at Dallas/Fort Worth Airport.
One of its aircraft, an MD-80, slid off the runway on to the grass on Monday morning as it was taxiing to the maintenance hangar for service. American spokesman Matt Miller said there were no passengers on board and no injuries in the incident.
The temperature was 18 degrees at DFW on Monday morning, although with the wind chill, it felt like 2 degrees outside.
According to aviation website, Flightstats.com, U.S. airlines had canceled 2,372 flights as of 9:30 a.m. Monday morning, mostly at airports on the East Coast which were experiencing snow and ice conditions.
UPDATE: An American Airlines aircraft that arrived from Leon, Mexico, hit the airport terminal building as it was being towed to Gate D40. American said the left winglet of the Airbus A319 caused minor cosmetic damage to the building and no injuries occured during the incident.