Hundreds of flights to Chicago canceled

FILE Southwest Airlines cancelled more than 200 flights out of Midway International Airport Sunday

FILE Southwest Airlines cancelled more than 200 flights out of Midway International Airport Sunday

In the statement, the airline said the Southwest Airlines Operational Planners have been actively working on managing their glycol, or de-icer, levels, throughout the storms and and are continuing to track winter weather moving through the Chicago area. Midway Airport said a total of 250 flights were canceled after an icy storm, suggesting other airlines were also affected, though operations are expected to return to normal, the Chicago Tribune reports.

Southwest said it "proactively canceled" about 220 flights and was offering refunds or flight vouchers, WBBM-TV reported.

At Midway airport, Southwest airlines announced they'd canceled all of their remaining flights on Sunday after running low on de-icing fluid for their planes.

Southwest said the airline company will continue to work with passengers to accommodate travel plans and have updated their customer accommodation policies on their website.