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Cheap Flights from Denver to Illinois

Did You Know?

Denver connects with 4 cities within Illinois nonstop.
United Airlines provides 41% of the nonstop flights from Denver to Illinois.
There are no long haul direct flights between Denver and Illinois.
24,064 seats are available per week to fly direct from Denver to Illinois.
5 airlines operate between Denver and Illinois.
41% of all flights from Denver to Illinois leave during afternoon hours.
The shortest nonstop flight between Denver and Illinois is 749 miles.
There are no short haul direct flights between Denver and Illinois.

Cheap Domestic Flights from Denver - DEN

Flights
Airline
Lowest Price
Frontier, Spirit, United, Alaska, Delta, US Airways, American, AirTran
$104
US Airways, American, Delta, United
$358
Delta, Frontier, American
$321
American, Delta, United
$417
American, United
$321
American
$321

Cheap Domestic Flights to Illinois - IL

Flights
Airline
Lowest Price
US Airways, Delta, United, American
$407
United, Delta, American
$513
American, Delta, United, US Airways
$389
Delta, American, US Airways, United
$536
United, US Airways, American
$389
American, US Airways, Delta, United
$319
United, Delta, American
$315
Delta, American, United
$462
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Cheap Flights from Denver to Illinois - from $104 Round trip from DEN to IL