Cheap Flight Tickets from Houston (IAH) to St Louis (STL), Starting at $805

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

$805

AS Alaska Airlines • 2 stops • 25h 58m

Jul 23 – Jul 26

The cheapest round trip flight from Houston to St Louis (IAH-STL-IAH) is currently $805

🔍 Search Flights

Fastest Flight

22h 35m

The fastest nonstop flight from Houston to St Louis (IAH-STL) takes 22h 35m

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.

Jul 23 - Jul 26, Economy
AS
Houston → St Louis
25h 58m
8:00 AM - 11:58 PM • 2 stops
AS
Houston → St Louis
32h 38m
5:37 PM - 1:35 PM • 1 stop
$805
Alaska Airlines
Jul 23 - Jul 26, Economy
AS
Houston → St Louis
36h 58m
6:19 PM - 4:37 PM • 1 stop
AS
Houston → St Louis
37h 25m
2:50 PM - 1:35 PM • 2 stops
$820
Alaska Airlines
Jul 23 - Jul 26, Economy
AS
Houston → St Louis
29h 17m
6:02 AM - 11:59 PM • 1 stop
AS
Houston → St Louis
32h 38m
5:37 PM - 1:35 PM • 1 stop
$827
Alaska Airlines
Jul 23 - Jul 26, Economy
AS
Houston → St Louis
29h 17m
6:02 AM - 11:59 PM • 1 stop
AS
Houston → St Louis
37h 25m
2:50 PM - 1:35 PM • 2 stops
$829
Alaska Airlines
Jul 23 - Jul 26, Economy
AS
Houston → St Louis
23h 52m
9:27 AM - 11:59 PM • 2 stops
AS
Houston → St Louis
28h 59m
7:56 PM - 1:35 PM • 2 stops
$832
Alaska Airlines
Jul 23 - Jul 26, Economy
AS
Houston → St Louis
22h 35m
5:02 AM - 6:57 PM • 2 stops
AS
Houston → St Louis
37h 25m
2:50 PM - 1:35 PM • 2 stops
$832
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?
NO
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 5:02 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 AS : USD 820
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 6:19 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

More Flight Options for Houston (IAH) and St Louis (STL)

Why Fareleaders for IAH to STL Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Houston to St Louis flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on IAH to STL flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Houston to St Louis flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Houston (IAH) to St Louis (STL)
Terms and Conditions*