Seattle to Austin

SEAAUS

Fly from Seattle to Austin starting at USD 129 with Southwest Airlines.Best fare available on Sep 21, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Austin cheapest flights this week

10 Sept
Frontier Airlines
21:45SEA
09:15AUS
1 StopUSD 176VIEW DEAL
11 Sept
Alaska Airlines
11:37SEA
16:04AUS
DirectUSD 138VIEW DEAL
12 Sept
Alaska Airlines
09:03SEA
13:21AUS
DirectUSD 138VIEW DEAL
14 Sept
Frontier Airlines
21:45SEA
12:37AUS
1 StopUSD 201VIEW DEAL
15 Sept
Frontier Airlines
10:57SEA
12:37AUS
1 StopUSD 183VIEW DEAL
17 Sept
Frontier Airlines
21:45SEA
09:15AUS
1 StopUSD 190VIEW DEAL
18 Sept
Frontier Airlines
16:27SEA
17:29AUS
1 StopUSD 190VIEW DEAL
19 Sept
Frontier Airlines
21:45SEA
09:15AUS
1 StopUSD 185VIEW DEAL
21 Sept
Southwest Airlines
23:00SEA
06:20AUS
1 StopUSD 129VIEW DEAL
22 Sept
American Airlines
11:22SEA
17:42AUS
1 StopUSD 165VIEW DEAL

Seattle to Austin monthly flight fare trend

Sep
from USD 129
Oct
from USD 137
Nov
from USD 114
Dec
No flights
Jan
from USD 164
Feb
No flights

Airport Details

Origin

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

Destination

Austin

Austin Bergstrom International Airport (AUS)

Austin, AUS
Zone

Chicago

Elev

542 ft

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