Find cheap flights 
Useful information about the flight route With between 219 and 25 flights per day, the flight route from Denver (DEN) to Chicago (CHI) is always well frequented by a wide variety of travelers. Scheduled, charter as well as low-cost flight providers see to it that the air traffic between the cities stays srtong. The direct flight takes about 2h 20, covering a distance of 1 000 miles. Non-stop flights are provided by American Airlines, United Airlines, Southwest, Frontier and Spirit.
The cheapest way of getting to Chicago, as with any flight comes down to from booking really early and avoiding holidays and school vacation periods.
Passengers can fly into any one of the Chicago airports - Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), West Chicago Du Page (DPA) etc., with O'Hare being the most popular, in part because of its size and efficiency. Aside from various ways of getting to and from the airport such as buses, shuttles ant taxis, the airport is unique in having a few bike lanes leading to the city.