Seattle to Denver

SEADEN

Fly from Seattle to Denver starting at USD 51 with Frontier Airlines.Best fare available on Sep 10, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Denver cheapest flights this week

9 Sept
Frontier Airlines
19:25SEA
14:05DEN
1 StopUSD 166VIEW DEAL
10 Sept
Frontier Airlines
16:27SEA
19:21DEN
DirectUSD 51VIEW DEAL
10 Sept
Frontier Airlines
20:15SEA
14:05DEN
1 StopUSD 152VIEW DEAL
11 Sept
Frontier Airlines
10:53SEA
08:35DEN
1 StopUSD 136VIEW DEAL
12 Sept
Frontier Airlines
10:53SEA
08:35DEN
1 StopUSD 136VIEW DEAL
13 Sept
Frontier Airlines
21:45SEA
09:07DEN
1 StopUSD 152VIEW DEAL
14 Sept
Frontier Airlines
21:45SEA
09:07DEN
1 StopUSD 125VIEW DEAL
15 Sept
Frontier Airlines
10:57SEA
17:33DEN
1 StopUSD 136VIEW DEAL
17 Sept
Frontier Airlines
16:27SEA
19:21DEN
DirectUSD 125VIEW DEAL
18 Sept
Frontier Airlines
16:27SEA
19:21DEN
DirectUSD 111VIEW DEAL

Seattle to Denver monthly flight fare trend

Sep
from USD 51
Oct
from USD 51
Nov
No flights
Dec
from USD 153
Jan
No flights
Feb
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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