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Cheap flights from Houston to St Louis (IAH - STL)

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The best prices from Houston to St Louis are usually found in May or August, booked 46 days in advance, depart on a Thursday or Saturday and return on a Saturday

IAH
Houston
STL
St Louis
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Cheap flights from Houston to Lambert-St Louis Intl
+60.0%
+40.0%
+20.0%
Base
Price
304 - 465 USD
Temperature
44 - 90 °F
Rainfall
2 - 5 inches
Most popular in February High demand for flights, 11% potential price rise
Cheapest in May Best time to find cheap flights, 3% potential price drop
Average price $304 Price for this month
Cheapest price $304 From Houston to St Louis

Cheap flights from Houston to St Louis in May 2019

The best prices found for IAH to STL flights for May
30 May - 4 Jun
$285pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
28 May - 31 May
$336pp
IAH
Houston George Bush Intcntl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
IAH
Houston George Bush Intcntl

Houston to St Louis 2019 flight deals

Cheap flights to St Louis from Houston found for this year
20 Aug - 22 Aug
$200pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
15 Jul - 23 Jul
$266pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
28 Oct - 30 Oct
$271pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl

Last minute flights from Houston to St Louis

Late deals on round-trip flights to St Louis from Houston, departing today and this week
28 May - 31 May
$336pp
IAH
Houston George Bush Intcntl
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
26 May - 4 Jun
$354pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl

Destination information for St Louis

Things to know before you go. Useful info for your trip from Houston to St Louis

Airports servicing Houston

Houston (IAH)

Airports servicing St. Louis

Lambert-St Louis Intl (STL)
Average temperature for May in St Louis
25.6 °C
Avg rainfall for May in St Louis
129.9 mm
During this time it is forecast that there will be 5.11 inches more rainfall in St Louis than in Houston .
The weather in St Louis for the next ten days will be 78.1°F - that’s 0.7°F warmer than Houston.
Sun, Mon, Tue, Wed, Thu, Fri and Sat the only days where direct flights are available for this route.
Which airlines fly from Houston to St Louis?
Currently, our data suggests that 4 airlines fly Houston to St Louis directly, including ANA, Copa Airlines and Air New Zealand.
54 users have been comparing flight prices between Houston and St Louis this week.