Austin to St Louis
AUSSTL
Fly from Austin to St Louis starting at SAR 862 with Frontier Airlines.
Best fare available on Jul 14, 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
Jul
from SAR 862
Aug
No flights
Sep
No flights
Oct
No flights
Nov
No flights
Dec
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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