A winter storm in Texas and nearby states has caused the cancellation of nearly 1,200 flights and delays to more than 350 as of 12:45 p.m. Tuesday, according to the tracking service FlightAware.

At Seattle Tacoma International Airport, 21 flights had been canceled and 97 delayed as of 12:45 p.m., according to FlightAware

Flights to or from Texas account for 10 of the cancellations at Sea-Tac.

“For context, we average about 1,200 flights per day,” said Perry Cooper, an airport spokesperson.

Winter weather cancels flights, leads to death in Texas

“Overall, this is a pretty minor impact for here. Dallas and Texas are not a major destination area for flights out of Seattle. Los Angeles and San Francisco are our major markets for departures,” he said.

Nearly 1,250 flights to or from Dallas-Fort Worth International Airport and 305 to or from Dallas Love Field were canceled or delayed as of 12:45 p.m., according to FlightAware. 

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Dallas-based Southwest Airlines has canceled more than 300 flights and delayed nearly 100 more. 

Freezing rain โ€” which was to blame for delays and cancellations in Western Washington during December’s ice storm โ€” resulted in significant ice amounts Monday across Texas, Oklahoma, Arkansas and Tennessee. Sleet is forecast on Tuesday for much of the Dallas metro area, leading to ice-packed roads and treacherous driving conditions, the National Weather Service said.