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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
$138
US Airways, American, Delta, United
$392
Delta, Frontier, American
$145
American, Delta, United
$398
American, United
$291
American
$291

Cheap Domestic Flights to Illinois - IL

Flights
Airline
Lowest Price
US Airways, Delta, United, American
$427
United, Delta, American
$422
American, Delta, United, US Airways
$409
Delta, American, US Airways, United
$509
United, US Airways, American
$407
American, US Airways, Delta, United
$289
United, Delta, American
$289
Delta, American, United
$486
Cheap Flights from Denver to Illinois - from $138 Round trip from DEN to IL