Seattle to Denver
SEADEN
Fly from Seattle to Denver starting at USD 28 with Frontier Airlines.
Best fare available on Sep 1, 2026.
Limited seats. Better plans. Book before it's gone.
Seattle to Denver cheapest flights this week
Seattle to Denver monthly flight fare trend
Jul
from USD 118
Aug
from USD 109
Sep
from USD 28
Oct
No flights
Nov
No flights
Dec
No flights
Airport Details
Origin
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
Destination
Denver
Denver International Airport (DEN)
Denver, DEN
Zone
Denver
Elev
5431 ft
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