Cheap Flight Tickets from Houston (IAH) to St Louis (STL), Starting at $488

Good to Know: Cheapest and Fastest IAH - STL Flights

Useful information for finding best airline tickets from George Bush Intercontinental Houston to Lambert St Louis International on your next trip.

Cheapest Round Trip Flight

$488

F9 Frontier Airlines • 1 stop • 40h 25m

Jun 20 – Jun 22

The cheapest round trip flight from Houston to St Louis (IAH-STL-IAH) is currently $488

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Cheapest Direct Flight

$563

UA United Airlines • nonstop • 3h 27m

Jun 26

The cheapest nonstop flight from Houston to St Louis (IAH-STL) is currently $563

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Fastest Flight

3h 27m

The fastest nonstop flight from Houston to St Louis (IAH-STL) takes 3h 27m

Top Airlines Flying from Houston to St Louis

Alaska Airlines -AS

Alaska Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from Houston (IAH) to St Louis (STL)

Compare and book low fare round-trip air tickets from Houston to St Louis. Ideal for travelers with confirmed return itineraries.

Jun 20 - Jun 22, Economy
F9
Houston → St Louis
40h 25m
1:41 PM - 2:06 PM • 1 stop
F9
Houston → St Louis
35h 50m
2:56 PM - 12:46 PM • 1 stop
$488
Frontier Airlines
Jun 20 - Jun 22, Economy
F9
Houston → St Louis
17h 22m
1:07 PM - 11:49 PM • 1 stop
F9
Houston → St Louis
43h 32m
4:17 PM - 6:29 PM • 1 stop
$488
Frontier Airlines
Jun 20 - Jun 22, Economy
F9
Houston → St Louis
20h 23m
6:30 AM - 6:53 PM • 1 stop
F9
Houston → St Louis
27h 10m
4:17 PM - 8:47 AM • 1 stop
$488
Frontier Airlines
Jun 20 - Jun 22, Economy
AS
Houston → St Louis
46h 59m
2:38 PM - 6:57 PM • 1 stop
AS
Houston → St Louis
29h 17m
6:02 AM - 11:59 PM • 1 stop
$557
Alaska Airlines
Jun 20 - Jun 22, Economy
AS
Houston → St Louis
25h 59m
8:00 AM - 11:59 PM • 1 stop
AS
Houston → St Louis
17h 4m
7:56 PM - 6:20 AM • 1 stop
$557
Alaska Airlines
Jun 20 - Jun 22, Economy
AS
Houston → St Louis
17h 37m
8:00 AM - 6:57 PM • 1 stop
AS
Houston → St Louis
17h 4m
7:56 PM - 6:20 AM • 1 stop
$557
Alaska Airlines

Fly from Houston to St Louis with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Houston to St Louis? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Houston to St Louis Flights

What are the airports in Houston?
IAH
What’s the most popular airline flying from IAH to STL?
The most popular airline flying from Houston to St Louis are
Can I fly from IAH to STL non-stop?
Yes, you can fly IAH to STL non-stop on
Which airlines fly nonstop between Houston and St Louis?
The non-stop flights between Houston and St Louis are .
What’s the earliest departure time from IAH to STL Airport?
The earliest flight leaves IAH at 6:30 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Houston to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from IAH to STL?
Read the fare rules of the Houston to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Houston and St Louis?
operate flights between Houston and St Louis
How long does a flight from Houston to St Louis take?
It takes approximately 2 hour to fly non-stop from IAH to STL, which is 667.31 miles by air.
Which airlines provide the cheapest flights from Houston (IAH) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from IAH were found on F9 : USD 488
Do I need a passport to fly between IAH and STL?
No
What’s the latest departure time from IAH to STL ?
The last flight leaves IAH at 8:30 pm

Houston (IAH) to St Louis (STL): Airport Information

Origin Airport George Bush Intercontinental Houston , Houston, US
Destination Airport Lambert St Louis International , St Louis, US
Distance 667 miles

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