US airlines cancel more than 1,000 flights over winter storm

More than 1,000 Monday flights into or out of the United States have been canceled due to a severe winter storm, with about half of those coming from Southwest Airlines Co.

A total of 1,019 flights were canceled as of 6:00 pm ET, according to flight-tracking service FlightAware.

Low-cost carrier Southwest earlier this month faced U.S. government backlash for canceling 16,700 flights over the holidays as it grappled with bad weather and outdated technology.