Snowy weather is causing flight delays and cancelations in Chicago.
The Chicago Department of Aviation says more than 400 flights have been canceled at O'Hare International Airport. And delays at the nation's second busiest airport are up to 90 minutes.
Across the city at Midway Airport, there are only a few cancelations. But flights are delayed more than 90 minutes.
Officials estimated earlier this week that the day before Christmas Eve should bring 54,000 passengers to Midway.
Sunday is expected to be the heaviest travel day at O'Hare when more than 200,000 passengers should pass through.