Seattle to Denver

SEADEN

Fly from Seattle to Denver starting at USD 68 with Frontier Airlines.Best fare available on Aug 18, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Denver cheapest flights this week

31 Jul
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 141VIEW DEAL
1 Aug
Alaska Airlines
19:00SEA
21:45DEN
DirectUSD 154VIEW DEAL
3 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 109VIEW DEAL
3 Aug
Alaska Airlines
20:11SEA
22:59DEN
DirectUSD 163VIEW DEAL
6 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 136VIEW DEAL
7 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 135VIEW DEAL
10 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 157VIEW DEAL
14 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 116VIEW DEAL
18 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 68VIEW DEAL
31 Aug
Frontier Airlines
19:06SEA
21:58DEN
DirectUSD 95VIEW DEAL

Seattle to Denver monthly flight fare trend

Jul
from USD 141
Aug
from USD 68
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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