how long does it take to fly from denver to chicago?
Flight map from Chicago, IL to Denver, CO. More trip calculations. find a flight to Denver, CO. Flying time from Chicago, IL to Denver, CO. The total flight duration from Chicago, IL to Denver, CO is 2 hours, 13 minutes. This is the average in-air flight time (wheels up to wheels down on the runway) based on actual flights taken over the past year, including routes like MDW to DEN.