Austin to St Louis
AUSSTL
Fly from Austin to St Louis starting at USD 273 with AA.
Best fare available on May 5, 2026.
Limited seats. Better plans. Book before it's gone.
Austin to St Louis cheapest flights this week
5 May
AA
10:01AUS
17:03STL
1 Stop$273VIEW DEAL
Austin to St Louis monthly flight fare trend
Apr
No flights
May
from USD 273
Jun
No flights
Jul
No flights
Aug
No flights
Sep
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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