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Uncover the best deals on St Louis to Houston flights by comparing fares from hundreds of airlines and agencies.
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
$462
American Airlines
• 1 stop
• 6h 46m
Sep 05 – Sep 07
The cheapest round trip flight from St Louis to Houston (STL-IAH-STL) is currently $462
Cheapest Direct Flight
$554
United Airlines
• nonstop
• 3h 32m
Sep 05
The cheapest nonstop flight from St Louis to Houston (STL-IAH) is currently $554
Fastest Flight
3h 32m
The fastest nonstop flight from St Louis to Houston (STL-IAH) takes 3h 32m
Top Airlines Flying from St Louis to Houston
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.
Sep 05 - Sep 07, Economy
St Louis → Houston
6h 46m
6:36 AM - 10:42 AM • 1 stop
St Louis → Houston
8h 35m
7:00 AM - 12:15 PM • 1 stop
American Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
3h 32m
3:13 PM - 5:25 PM • nonstop
St Louis → Houston
3h 34m
3:52 PM - 6:06 PM • nonstop
United Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
3h 32m
3:13 PM - 5:25 PM • nonstop
St Louis → Houston
9h 7m
6:15 AM - 12:02 PM • 1 stop
United Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
8h 35m
3:32 PM - 8:47 PM • 1 stop
St Louis → Houston
3h 30m
8:00 AM - 10:10 AM • nonstop
United Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
10h 15m
9:00 AM - 3:15 PM • 1 stop
St Louis → Houston
3h 30m
8:00 AM - 10:10 AM • nonstop
United Airlines
Flying to Houston soon? We've surfaced some of the most affordable last-minute flights from St Louis to Houston, ideal for urgent plans or spontaneous trips.
Sep 05 - Sep 07, Economy
St Louis → Houston
6h 46m
6:36 AM - 10:42 AM • 1 stop
St Louis → Houston
8h 35m
7:00 AM - 12:15 PM • 1 stop
American Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
3h 32m
3:13 PM - 5:25 PM • nonstop
St Louis → Houston
3h 34m
3:52 PM - 6:06 PM • nonstop
United Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
3h 32m
3:13 PM - 5:25 PM • nonstop
St Louis → Houston
9h 7m
6:15 AM - 12:02 PM • 1 stop
United Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
8h 35m
3:32 PM - 8:47 PM • 1 stop
St Louis → Houston
3h 30m
8:00 AM - 10:10 AM • nonstop
United Airlines
Sep 05 - Sep 07, Economy
St Louis → Houston
10h 15m
9:00 AM - 3:15 PM • 1 stop
St Louis → Houston
3h 30m
8:00 AM - 10:10 AM • nonstop
United Airlines
Looking for the fastest way to Houston? These direct flight options from STL to IAH offer both convenience and value—no layovers, just straight to your destination.
Sep 05 - Sep 07, Economy
St Louis → Houston
3h 32m
3:13 PM - 5:25 PM • nonstop
St Louis → Houston
3h 34m
3:52 PM - 6:06 PM • nonstop
United Airlines
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 6:15 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 462
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 5:30 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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