Severe weather causes flight cancellations and delays at multiple airports.

Over 750 flights were canceled and almost 5,300 were delayed in the US due to severe storms and multiple likely tornadoes. Delta Air Lines led with the most cancellations, scrapping 323 flights, or 11% of its schedule. Some airlines also began issuing waivers to give travelers flexibility. The Department of Transportation has a series of dashboards to help travelers see what they're entitled to in the event their flight is canceled or delayed.