Deal found on October 7, 2026
Seattle to Denver
$66$27376% off
Round trip
Frontier's nonstop SEA-DEN run typically costs around $164, and it just fell to $66, a 60% discount that lands close to the cheapest fare we've ever seen on this route. Denver is an easy jumping-off point for Rocky Mountain hiking this fall and an early start to ski season a bit later in the winter. It is a quick, cheap way to get out of town for a long weekend.
Travel dates
Dates in November
e.g. Nov 4 – Nov 13 · 9 nights
Date options
4 at this price
Lowest we've seen
$46
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