There are 7 airports in Chicago: Merrill C Meigs, Chicago Rockford International Airport, O'Hare International Airport, DuPage Airport, Chicago Midway International Airport, Chicago Union Railway Station and Chicago Executive Airport.

The best price for a return flight from Denver to Chicago is €63.49. The average price for a ticket is €93.33

There are 6 airlines that directly fly from Denver to Chicago: American Airlines, Frontier Airlines, Spirit Airlines, United Airlines, Silk Avia and Southwest Airlines.