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.

Holiday travelers setting out for what is expected to be one of the busiest travel weekends of the year are already facing delays as a severe round of storms rolls into the Southern US.

The wave of storms put a damper on travel plans after the Christmas holiday and contributed to hundreds of flight cancellations nationwide.