Deal found on September 9, 2026
Chicago to Denver
$104$25559% off
Round trip
Frontier's nonstop O'Hare to Denver fare typically runs around $265, and it just dropped to $104, a 61% cut and one of the sharpest nonstop discounts we've tracked recently. Only a single date came back in this search, so flexibility is limited, but at this price Denver is an easy long weekend for fall hiking in the Rockies before the snow moves in.
Travel dates
Dates in October
e.g. Oct 1 – Oct 10 · 9 nights
Date options
3 at this price
Lowest we've seen
$57
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