Houston to St Louis
IAHSTL
Fly from Houston to St Louis starting at USD 165 with F9.
Best fare available on Jul 7, 2026.
Limited seats. Better plans. Book before it's gone.
Houston to St Louis cheapest flights this week
7 Jul
F9
11:12IAH
08:52STL
1 Stop$165VIEW DEAL
Houston to St Louis monthly flight fare trend
May
No flights
Jun
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Jul
from USD 165
Aug
No flights
Sep
No flights
Oct
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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