Austin to St Louis
AUSSTL
Fly from Austin to St Louis starting at USD 173 with Southwest Airlines.
Best fare available on Jun 26, 2026.
Limited seats. Better plans. Book before it's gone.
Austin to St Louis cheapest flights this week
Austin to St Louis monthly flight fare trend
Jun
from USD 173
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Nov
No flights
Airport Details
Origin
Austin
Austin Bergstrom International Airport (AUS)
Austin, AUS
Zone
Chicago
Elev
542 ft
Destination
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
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