St Louis to Austin

STLAUS

Fly from St Louis to Austin starting at USD 111 with Frontier Airlines.Best fare available on Oct 16, 2026.Limited seats. Better plans. Book before it's gone.

St Louis to Austin cheapest flights this week

2 Oct
Frontier Airlines
20:10STL
19:29AUS
1 StopUSD 208VIEW DEAL
5 Oct
Frontier Airlines
20:10STL
19:29AUS
1 StopUSD 191VIEW DEAL
15 Oct
Southwest Airlines
05:10STL
08:30AUS
1 StopUSD 187VIEW DEAL
16 Oct
Frontier Airlines
18:35STL
10:57AUS
1 StopUSD 111VIEW DEAL

St Louis to Austin monthly flight fare trend

Oct
from USD 111
Nov
No flights
Dec
No flights
Jan
No flights
Feb
No flights
Mar
No flights

Airport Details

Origin

St Louis

St. Louis Lambert International Airport (STL)

St Louis, STL
Zone

Chicago

Elev

618 ft

Destination

Austin

Austin Bergstrom International Airport (AUS)

Austin, AUS
Zone

Chicago

Elev

542 ft

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