Denver to Seattle

DENSEA

Fly from Denver to Seattle starting at SAR 137 with Frontier Airlines.Best fare available on Aug 10, 2026.Limited seats. Better plans. Book before it's gone.

Denver to Seattle cheapest flights this week

19 Jul
Alaska Airlines
06:02DEN
09:05SEA
DirectSAR 315VIEW DEAL
19 Jul
Frontier Airlines
07:13DEN
10:17SEA
DirectSAR 566VIEW DEAL
20 Jul
Frontier Airlines
09:13DEN
12:20SEA
DirectSAR 566VIEW DEAL
24 Jul
Frontier Airlines
16:25DEN
11:39SEA
1 StopSAR 544VIEW DEAL
10 Aug
Frontier Airlines
07:00DEN
10:04SEA
DirectSAR 137VIEW DEAL
13 Sept
Frontier Airlines
07:45DEN
10:51SEA
DirectSAR 329VIEW DEAL
27 Nov
Alaska Airlines
07:00DEN
10:05SEA
DirectSAR 529VIEW DEAL
27 Dec
United Airlines
21:10DEN
00:16SEA
DirectSAR 892VIEW DEAL
28 Dec
United Airlines
21:10DEN
00:16SEA
DirectSAR 633VIEW DEAL
3 Jan
Alaska Airlines
07:00DEN
10:05SEA
DirectSAR 770VIEW DEAL

Denver to Seattle monthly flight fare trend

Jul
from SAR 315
Aug
from SAR 137
Sep
from SAR 329
Oct
No flights
Nov
from SAR 529
Dec
from SAR 633

Airport Details

Origin

Denver

Denver International Airport (DEN)

Denver, DEN
Zone

Denver

Elev

5431 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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