St Louis to Houston

STLIAH

Fly from St Louis to Houston starting at USD 92 with Frontier Airlines.Best fare available on Sep 7, 2026.Limited seats. Better plans. Book before it's gone.

St Louis to Houston cheapest flights this week

5 Sept
Southwest Airlines
08:30STL
22:14IAH
1 StopUSD 115VIEW DEAL
6 Sept
Frontier Airlines
18:17STL
07:20IAH
1 StopUSD 97VIEW DEAL
6 Sept
Frontier Airlines
17:02STL
08:02IAH
1 StopUSD 156VIEW DEAL
7 Sept
Frontier Airlines
18:17STL
07:20IAH
1 StopUSD 92VIEW DEAL
8 Sept
Frontier Airlines
18:45STL
21:04IAH
1 StopUSD 133VIEW DEAL
10 Sept
American Airlines
11:01STL
16:07IAH
1 StopUSD 128VIEW DEAL
12 Sept
Frontier Airlines
12:17STL
06:02IAH
1 StopUSD 152VIEW DEAL
13 Sept
Frontier Airlines
17:19STL
09:26IAH
1 StopUSD 151VIEW DEAL
17 Sept
Frontier Airlines
10:35STL
22:06IAH
1 StopUSD 97VIEW DEAL
16 Dec
Frontier Airlines
14:59STL
00:15IAH
1 StopUSD 94VIEW DEAL

St Louis to Houston monthly flight fare trend

Sep
from USD 92
Oct
No flights
Nov
No flights
Dec
from USD 94
Jan
No flights
Feb
No flights

Airport Details

Origin

St Louis

St. Louis Lambert International Airport (STL)

St Louis, STL
Zone

Chicago

Elev

618 ft

Destination

Houston

George Bush Intercontinental Houston Airport (IAH)

Houston, IAH
Zone

Chicago

Elev

97 ft

Flights from St Louis

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