Deal found on August 26, 2026
Seattle to Denver
$148$27346% off
Round trip
Denver typically runs around $273 from Seattle, now just $148 on a nonstop Frontier flight, a 46% drop. Fall dates are wide open, and the shoulder season timing means crisp hiking weather gives way to early ski season. It's a genuinely useful cheap fare rather than a random one.
Travel dates
September into October
e.g. Sep 22 – Oct 1 · 9 nights
Date options
13 at this price
Lowest we've seen
$51
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