David Zalubowski, The Associated Press
A United Airlines jetliner is sprayed with de-icing fluid while passing by a line of snow removal equipment on the way to a runway as a winter storm sweeps over the intermountain West Tuesday, Jan. 26, 2021, at Denver International Airport in Denver. Forecasters predict that the fast-moving storm could leave up to a foot of snow in some parts of the region before giving way to a front packing warmer temperatures for the rest of the week. 
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Tuesday morning was cold and snowy as a heavy snowstorm hit the city last night. Interstate 70 was closed during the worst of the storm, and Denver International Airport also felt the impact of the storm as it got more than 3 inches.
Crews at the airport have all six runways open, but there have been plenty of changed flight plans.
About 640 flights have been delayed as of 6 am., and another 80 were canceled Monday night into Tuesday morning.
Sky West was most affected, with 38 cancellations and 217 delays. Southwest and CommutAir also had double-digit cancellations while United had 131 delays.
