Cheap Flights from Denver to Illinois
- You are here: Search Flights
- > Denver to US/Canada
- > Denver to United States
- > Denver
- to Illinois
Popular Flights from Denver to Illinois
Did You Know?
- The shortest flight from Denver, CO to Illinois is 749 miles.
- There are 43 carriers flying into Illinois.
- The most popular destination from Denver, CO is Salt Lake International.
- There are 613 direct flights from Denver to Illinois.
- Minneapolis-St Paul, MN is the most popular connecting city from Denver, CO to Illinois.
- There are 104 connecting cities from Denver, CO to Illinois.
- The longest flight from Denver, CO to Illinois is 892 miles.
- Minneapolis-St Paul, MN has the most direct flights to Illinois.
Cheap Domestic Flights from Denver - DEN
United, AirTran, Frontier, Spirit, American, Alaska, Delta, US Airways
United, US Airways, American, Delta
American, Delta, United
American, Delta, Frontier
Cheap Flights from Denver to Illinois - from $138 Round trip from DEN to IL