Cheap Flight Tickets from St Louis (STL) to Houston (IAH), Starting at $174

Good to Know: Cheapest and Fastest STL - IAH Flights

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

Cheapest Round Trip Flight

$250

AA American Airlines • 1 stop • 9h 11m

Jul 17 – Jul 19

The cheapest round trip flight from St Louis to Houston (STL-IAH-STL) is currently $250

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Cheapest Direct Flight

$174

UA United Airlines • nonstop • 3h 35m

Aug 05

The cheapest nonstop flight from St Louis to Houston (STL-IAH) is currently $174

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Fastest Flight

3h 20m

The fastest nonstop flight from St Louis to Houston (STL-IAH) takes 3h 20m

Top Airlines Flying from St Louis to Houston

Delta Airline, DL

Delta Airlines

American Airlines, AA

American Airlines

Southwest Airlines-WN

Southwest Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

Aeromexico Airline (AM)

Aeromexico

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

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

Jul 17 - Jul 19, Economy
AA
St Louis → Houston
9h 11m
6:55 AM - 12:46 PM • 1 stop
AA
St Louis → Houston
6h 49m
7:49 PM - 11:58 PM • 1 stop
$250
American Airlines
Jul 17 - Jul 19, Economy
AA
St Louis → Houston
8h 31m
5:13 PM - 10:24 PM • 1 stop
AA
St Louis → Houston
5h 44m
5:02 AM - 8:46 AM • 1 stop
$250
American Airlines
Jul 17 - Jul 19, Economy
AA
St Louis → Houston
9h 17m
1:14 PM - 7:11 PM • 1 stop
AA
St Louis → Houston
6h 49m
7:49 PM - 11:58 PM • 1 stop
$250
American Airlines
Jul 17 - Jul 19, Economy
AA
St Louis → Houston
8h 52m
5:30 AM - 11:02 AM • 1 stop
AA
St Louis → Houston
5h 44m
5:02 AM - 8:46 AM • 1 stop
$250
American Airlines
Jul 17 - Jul 19, Economy
DL
St Louis → Houston
7h 39m
6:58 PM - 11:57 PM • 1 stop
DL
St Louis → Houston
8h 37m
7:00 AM - 12:17 PM • 1 stop
$622
Delta Airlines
Jul 17 - Jul 19, Economy
DL
St Louis → Houston
8h 34m
6:00 AM - 11:14 AM • 1 stop
DL
St Louis → Houston
8h 37m
7:00 AM - 12:17 PM • 1 stop
$622
Delta Airlines

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

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

FAQs on St Louis to Houston Flights

What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to IAH?
The most popular airline flying from St Louis to Houston are
Can I fly from STL to IAH non-stop?
Yes, you can fly STL to IAH non-stop on
Which airlines fly nonstop between St Louis and Houston?
The non-stop flights between St Louis and Houston are .
What’s the earliest departure time from STL to IAH Airport?
The earliest flight leaves STL at 5:15 am and lands in IAH - George Bush Intercontinental Houston
What are the airports in Houston?
IAH
Can I make changes to my St Louis to Houston 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 STL to IAH?
Read the fare rules of the St Louis to Houston 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 St Louis and Houston?
operate flights between St Louis and Houston
How long does a flight from St Louis to Houston take?
It takes approximately 2 hour to fly non-stop from STL to IAH, which is 667.31 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to Houston (IAH) ?
In the past couple of days, the cheapest tickets to IAH from STL were found on AA : USD 250
Do I need a passport to fly between STL and IAH?
No
What’s the latest departure time from STL to IAH ?
The last flight leaves STL at 6:58 pm

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

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

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