Deal found on July 8, 2026
Denver to Seattle
$81$26069% off
Round trip
Seattle nonstop on Frontier is $81 round trip, a full 61% below the usual $208 fare and one of the best prices we have tracked on this route. Book for late summer or fall travel and use it for a Pike Place Market run, a ferry ride across Puget Sound, or a jumping-off point for the San Juan Islands.
Travel dates
Sep 22 to Oct 1
Date options
9 at this price
Lowest we've seen
$51
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