Seattle to Austin
SEAAUS
Fly from Seattle to Austin starting at USD 145 with Southwest Airlines.
Best fare available on Jul 23, 2026.
Limited seats. Better plans. Book before it's gone.
Seattle to Austin cheapest flights this week
Seattle to Austin monthly flight fare trend
Jul
from USD 145
Aug
from USD 164
Sep
No flights
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
Austin
Austin Bergstrom International Airport (AUS)
Austin, AUS
Zone
Chicago
Elev
542 ft
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