Dallas to Seattle

DFWSEA

Fly from Dallas to Seattle starting at USD 120 with Alaska Airlines.Best fare available on Aug 15, 2026.Limited seats. Better plans. Book before it's gone.

Dallas to Seattle cheapest flights this week

23 Jul
Frontier Airlines
07:31DFW
21:38SEA
1 StopUSD 154VIEW DEAL
8 Aug
Frontier Airlines
07:25DFW
19:51SEA
1 StopUSD 135VIEW DEAL
8 Aug
Frontier Airlines
21:31DFW
11:04SEA
1 StopUSD 142VIEW DEAL
15 Aug
Alaska Airlines
06:24DFW
10:45SEA
DirectUSD 120VIEW DEAL
15 Aug
Frontier Airlines
05:20DFW
15:17SEA
1 StopUSD 126VIEW DEAL
18 Aug
Frontier Airlines
21:31DFW
11:19SEA
1 StopUSD 128VIEW DEAL
20 Aug
Frontier Airlines
05:18DFW
11:19SEA
1 StopUSD 127VIEW DEAL
22 Aug
Frontier Airlines
18:58DFW
11:19SEA
1 StopUSD 130VIEW DEAL
30 Aug
Frontier Airlines
05:18DFW
11:48SEA
1 StopUSD 158VIEW DEAL
8 Oct
Frontier Airlines
21:51DFW
20:26SEA
1 StopUSD 165VIEW DEAL

Dallas to Seattle monthly flight fare trend

Jul
from USD 154
Aug
from USD 120
Sep
No flights
Oct
from USD 128
Nov
No flights
Dec
No flights

Airport Details

Origin

Dallas

Dallas Fort Worth International Airport (DFW)

Dallas-Fort Worth, DFW
Zone

Chicago

Elev

607 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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