Houston to St Louis

IAHSTL

Fly from Houston to St Louis starting at SAR 333 with Frontier Airlines.Best fare available on Sep 19, 2026.Limited seats. Better plans. Book before it's gone.

Houston to St Louis cheapest flights this week

17 Sept
Frontier Airlines
20:44IAH
09:40STL
1 StopSAR 377VIEW DEAL
18 Sept
Frontier Airlines
13:35IAH
09:40STL
1 StopSAR 355VIEW DEAL
19 Sept
Frontier Airlines
20:44IAH
09:40STL
1 StopSAR 333VIEW DEAL
22 Sept
Frontier Airlines
20:44IAH
09:40STL
1 StopSAR 333VIEW DEAL

Houston to St Louis monthly flight fare trend

Aug
No flights
Sep
from SAR 333
Oct
No flights
Nov
No flights
Dec
No flights
Jan
No flights

Airport Details

Origin

Houston

George Bush Intercontinental Houston Airport (IAH)

Houston, IAH
Zone

Chicago

Elev

97 ft

Destination

St Louis

St. Louis Lambert International Airport (STL)

St Louis, STL
Zone

Chicago

Elev

618 ft

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