Severe weather disrupted holiday travel on Saturday across the U.S. with deadly tornadoes in the southeast and heavy snow and wind on the west coast, delaying or canceling thousands of flights across the country. More than 7,000 flights in the U.S. were delayed on Saturday, according to the tracking site FlightAware, and more than 200 were canceled. About a third of the flights were delayed at Hartsfield-Jackson International Airport in Atlanta, according to FlightAware, and nearly half of the flights originating from Dallas/Fort Worth International Airport and George Bush Intercontinental Airport in Houston were delayed.