This deal has expired.
It was found on July 8, 2026. Typical price for this route is $217. Fares like this come and go fast. Get the next one by email below.
Past deal
Phoenix to Denver
$66$21770% off
Round trip
Even cheaper now! We flagged Denver out of Phoenix at $130 just yesterday, and today Frontier dropped it to $66, a 56% cut off the typical $151 fare. Dates stay flexible into the fall, so grab the nonstop for a quick Rockies hiking trip or a Denver brewery weekend.
Travel dates
Dates in September
e.g. Sep 14 – Sep 23 · 9 nights
Date options
6 at this price
Lowest we've seen
$51
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