Fly nonstop from Denver to Chicago for $99 round-trip on American Airlines.
Searching AA.com, we found seats departing DEN on Saturday, May 30, returning from ORD on the following Saturday, June 6.
Other dates are also available for departures throughout May.
For booking info, see our Fare Details.
Need a room in Chicago? Here's a look at what's available on Hotelwatchdog for the above dates.