Flights from Chicago to Denver

2 deals on this route

Denver skyline with Rocky Mountains
Save 59%
$88
$213
Chicago skyline and Lake Michigan
ORDDEN
Chicago to Denver
Frontier Airlines
Nonstop·round trip
May 23 – May 26
Denver skyline with Rocky Mountains
Save 57%
$80
$184
Chicago skyline and Lake Michigan
ORDDEN
Chicago to Denver
Frontier Airlines
Nonstop·round trip
May 9 – May 11