Lowest Prices
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
$272
American Airlines
• 1 stop
• 35h 26m
Jun 16 – Jun 23
The cheapest round trip flight from St Louis to Houston (STL-IAH-STL) is currently $272
Cheapest One way Flight
$439
Delta Airlines
• 1 stop
• 10h 54m
Jun 18
The cheapest one way flight from St Louis to Houston (STL-IAH) is currently $439
Cheapest Direct Flight
$432
United Airlines
• nonstop
• 3h 37m
Jun 16
The cheapest nonstop flight from St Louis to Houston (STL-IAH) is currently $432
Fastest Flight
3h 25m
The fastest nonstop flight from St Louis to Houston (STL-IAH) takes 3h 25m
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.
Jun 16 - Jun 23, Economy
St Louis → Houston
35h 26m
- • 1 stop
St Louis → Houston
37h 29m
- • 1 stop
American Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
10h 26m
9:14 AM - 3:40 PM • 1 stop
St Louis → Houston
8h 42m
7:20 AM - 12:42 PM • 1 stop
United Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
10h 3m
9:06 AM - 3:09 PM • 1 stop
St Louis → Houston
8h 42m
7:20 AM - 12:42 PM • 1 stop
United Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
7h 5m
4:00 PM - 8:25 PM • 1 stop
St Louis → Houston
3h 35m
8:30 PM - 10:45 PM • nonstop
Southwest Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
23h 54m
7:46 PM - 7:58 PM • 1 stop
St Louis → Houston
10h 18m
11:12 AM - 5:30 PM • 1 stop
Frontier Airlines
Explore competitive one-way airfare options for STL - IAH flights. Best suited for flexible or open-ended travel plans.
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.
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.
Jun 16 - Jun 23, Economy
St Louis → Houston
3h 37m
6:14 AM - 8:31 AM • nonstop
St Louis → Houston
3h 27m
8:00 AM - 10:07 AM • nonstop
United Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
3h 35m
11:10 AM - 1:25 PM • nonstop
St Louis → Houston
3h 35m
8:30 PM - 10:45 PM • nonstop
United Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
3h 37m
8:35 AM - 10:52 AM • nonstop
St Louis → Houston
3h 35m
8:30 PM - 10:45 PM • nonstop
United Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
3h 25m
8:45 AM - 10:50 AM • nonstop
St Louis → Houston
3h 35m
8:30 PM - 10:45 PM • nonstop
Southwest Airlines
Jun 16 - Jun 23, Economy
St Louis → Houston
3h 25m
5:25 AM - 7:30 AM • nonstop
St Louis → Houston
3h 35m
8:30 PM - 10:45 PM • nonstop
Southwest 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 5:25 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 493
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 8:1400 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 |
More Flight Options for St Louis (STL) and Houston (IAH)
Flights from St Louis (STL)
to Las Vegas (LAS)
Flights from St Louis (STL)
to Atlanta (ATL)
Flights from St Louis (STL)
to Orlando (MCO)
Flights from St Louis (STL)
to Fort Myers (RSW)
Flights from St Louis (STL)
to Portland (PDX)
Flights from St Louis (STL)
to San Francisco (SFO)
Flights from St Louis (STL)
to San Juan (SJU)
Flights from St Louis (STL)
to Sacramento (SMF)
Flights from St Louis (STL)
to Tampa (TPA)
Flights from St Louis (STL)
to Denver (DEN)
Flights from St Louis (STL)
to Miami (MIA)
Flights from St Louis (STL)
to Panama City Beach (ECP)
Flights from St Louis (STL)
to Houston (IAH)
Flights from St Louis (STL)
to Chicago (ORD)
Flights from St Louis (STL)
to Norfolk (ORF)
Flights from St Louis (STL)
to Honolulu (HNL)
Flights from St Louis (STL)
to Cancún (CUN)
Flights from St Louis (STL)
to Charlotte (CLT)
Flights from St Louis (STL)
to Tocumen (PTY)
Flights from St Louis (STL)
to Fort Myers (FMY)
Flights from Phoenix (PHX)
to Houston (IAH)
Flights from Atlanta (ATL)
to Houston (IAH)
Flights from Raleigh/Durham (RDU)
to Houston (IAH)
Flights from Salt Lake City (SLC)
to Houston (IAH)
Flights from Miami (MIA)
to Houston (IAH)
Flights from Baltimore (BWI)
to Houston (IAH)
Flights from Baltimore (BWI)
to Houston (IAH)
Flights from Washington (DCA)
to Houston (IAH)
Flights from Savannah (SAV)
to Houston (IAH)
Flights from San Francisco (SFO)
to Houston (IAH)
Flights from Detroit (DTW)
to Houston (IAH)
Flights from La Mesa (SAP)
to Houston (IAH)
Flights from La Mesa (SAP)
to Houston (IAH)
Flights from Dallas (DFW)
to Houston (IAH)
Flights from Dallas (DFW)
to Houston (IAH)
Flights from Los Angeles (LAX)
to Houston (IAH)
Flights from Indianapolis (IND)
to Houston (IAH)
Flights from Fort Lauderdale (FLL)
to Houston (IAH)
Flights from San Diego (SAN)
to Houston (IAH)
Flights from Boston (BOS)
to Houston (IAH)
Cheap flights to North America (NA)
Cheap flights to United States (US)
Cheap flights to Texas (US-TX)
Cheap flights to Missouri (US-MO)
Cheap flights from North America (NA)
Cheap flights from United States (US)
Cheap flights from Texas (US-TX)
Cheap flights from Missouri (US-MO)
Flights to Houston (IAH)
Flights to St Louis (STL)
Flights from Houston (IAH)
Flights from Houston (IAH)
to St Louis (STL)
Flights from St Louis (STL)
Why Fareleaders for STL to IAH Plane Tickets
New Deals Everyday
Get the best prices on STL to IAH flights—we update our fares daily so you never miss a saving.
No Service Fees
Compare hundreds of St Louis to Houston flights and secure the best deals—we never add any service fees.