Cheap flights from St. Louis to Houston from $53
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Houston departing on 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Not ready to book? to track prices.Frontier flights from St. Louis to Houston George Bush Intcntl Airport
Our best Frontier deals on St. Louis to Houston George Bush Intcntl Airport flight tickets
United Airlines flights from St. Louis to Houston George Bush Intcntl Airport
Our best United Airlines deals on St. Louis to Houston George Bush Intcntl Airport flight tickets
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Route
Depart
Return
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Fri 11/13
1:28 pm-12:44 am
1 stop11h 16m
Houston George Bush Intcntl
Mon 11/16
12:27 pm-11:16 pm
1 stop10h 49m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Fri 10/30
1:28 pm-12:44 am
1 stop11h 16m
Houston George Bush Intcntl
Mon 11/2
12:27 pm-11:16 pm
1 stop10h 49m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Thu 12/31
8:32 am-11:00 am
Nonstop2h 28m
Houston George Bush Intcntl
Thu 12/31
6:16 pm-8:23 pm
Nonstop2h 07m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 10/26
6:15 am-8:35 am
Nonstop2h 20m
Houston George Bush Intcntl
Mon 11/2
8:20 pm-10:26 pm
Nonstop2h 06m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 12/21
6:15 am-8:38 am
Nonstop2h 23m
Houston George Bush Intcntl
Thu 12/31
6:16 pm-8:23 pm
Nonstop2h 07m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 10/26
1:30 pm-12:26 am
1 stop10h 56m
Houston George Bush Intcntl
Wed 10/28
6:05 am-5:40 pm
1 stop11h 35m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Thu 1/28
7:21 am-2:29 pm
1 stop7h 08m
Houston George Bush Intcntl
Mon 2/1
6:57 pm-11:57 pm
1 stop5h 00m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 10/26
5:00 am-10:14 am
1 stop5h 14m
Houston George Bush Intcntl
Mon 10/26
6:52 pm-12:19 am
1 stop5h 27m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 12/21
7:05 am-1:33 pm
1 stop6h 28m
Houston George Bush Intcntl
Mon 12/21
6:46 pm-11:55 pm
1 stop5h 09m
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Sun 1/24
3:40 pm-9:10 pm
1 stop5h 30m
Houston George Bush Intcntl
Wed 1/27
11:50 am-6:01 pm
1 stop6h 11m
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How to get the cheapest flight ticket from St. Louis to Houston George Bush Intcntl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between St. Louis and Houston George Bush Intcntl Airport?
Prices are currently typical for flights on this route.
Typical prices usually range from $217 to $395.The lowest price recently found on this route was $217.
What is the cheapest month to fly to Houston George Bush Intcntl Airport?
The month of January is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from St. Louis, with most prices found around $243. If you are unable to visit Houston George Bush Intcntl Airport during the month of January, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around $337.
What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?
The cheapest day to depart from St. Louis to Houston George Bush Intcntl Airport is on a Friday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Friday will often find tickets for as low as $523. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $661.
What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?
Our data shows that the cheapest St. Louis to Houston George Bush Intcntl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Houston George Bush Intcntl Airport in the afternoon for as low as $544. Try not to purchase tickets in the morning because they tend to be around $589. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Lambert-St Louis to Houston George Bush Intcntl flight route?
Fly from Lambert-St Louis to Houston George Bush Intcntl for the best Lambert-St Louis - Houston George Bush Intcntl flight prices
How far in advance should I book a flight from St. Louis to Houston George Bush Intcntl Airport?
You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $397 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from St. Louis for as low as $313 on momondo.
What cabin class options are available on St. Louis to Houston George Bush Intcntl Airport flights?
There are 4 cabin classes available to choose from on St. Louis to Houston George Bush Intcntl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on St. Louis to Houston George Bush Intcntl Airport flights?
You could potentially save up to 9% on your flight if you consider stops on a St. Louis to Houston George Bush Intcntl Airport flight.
How have St. Louis to Houston George Bush Intcntl Airport flight prices changed over time?
As of October 2026, prices for St. Louis to Houston George Bush Intcntl Airport flights are approximately 38% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Lambert-St Louis to Houston George Bush Intcntl?
United Airlines and Delta are the most popular carriers operating from Lambert-St Louis to Houston George Bush Intcntl
What airlines fly to Houston George Bush Intcntl Airport?
United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Houston George Bush Intcntl Airport from St. Louis according to our data. United Airlines is the first choice among our users, with 78% of people opting to fly with this airline when traveling to Houston George Bush Intcntl Airport. Keep in mind that there are 3 different airlines that fly to Houston George Bush Intcntl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from St. Louis to Houston George Bush Intcntl Airport on average per day?
16 flights are operational daily from St. Louis to Houston George Bush Intcntl Airport as of October 2026. The most popular departure time for this route is 6:00AM, with 77% of flights per day taking off at noon.
How many flights depart from St. Louis to Houston George Bush Intcntl Airport on average per week?
The number of flights available between St. Louis and Houston George Bush Intcntl Airport is 114 per week as of October 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.
When to book flights from St. Louis to Houston George Bush Intcntl Airport
Cheap St. Louis to Houston George Bush Intcntl Airport (STL to IAH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Houston George Bush Intcntl Airport
Frequently asked questions about flying from St. Louis to Houston George Bush Intcntl Airport
How far is Lambert-St Louis to Houston George Bush Intcntl by plane?
Lambert-St Louis and Houston George Bush Intcntl are 664.5 mi apart from one another. In terms of flight time, this usually takes a little over 2h 13m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Houston George Bush Intcntl Airport?
Prices for flights from Lambert-St Louis Airport to Houston George Bush Intcntl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Houston George Bush Intcntl Airport?
The number of operators available for flights from Lambert-St Louis Airport to Houston George Bush Intcntl Airport is 3 as of October 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Houston George Bush Intcntl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Houston George Bush Intcntl Airport.
What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?
The necessary travel and health documents for your Houston George Bush Intcntl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Houston George Bush Intcntl Airport?
Based on momondo bookings for flights between St. Louis and Houston George Bush Intcntl Airport, the leading plane model is Canadair (Bombardier) Regional Jet CRJ-550, making up 21.38% of the total bookings. Other popular models include Boeing 737 MAX 8 with 20.82%, Embraer 175 (Enhanced Winglets) with 20.82%, and Boeing 737-800 with 14.31%.
What is the most popular airline from St. Louis to Houston George Bush Intcntl Airport?
Based on momondo bookings for flights between St. Louis and Houston George Bush Intcntl Airport, the leading airline is United Airlines, making up 83% of the total bookings. Other popular airlines include Frontier with 13% and American Airlines with 4%.
Best airlines flying from St. Louis to Houston George Bush Intcntl Airport
Compare and see reviews for airlines that fly from St. Louis to Houston George Bush Intcntl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $156 | Free Cancellation | Rating 5.5 2,550 reviews | |||
| PriceFrom $182 | Free Cancellation | Rating 7.0 12,128 reviews | |||
| PriceFrom $217 | Free Cancellation | Rating 7.4 10,286 reviews |
United Airlines Flights From St. Louis to Houston George Bush Intcntl Airport
United Airlines flies from St. Louis to Houston George Bush Intcntl Airport around 26 times per week, with 10,286 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from St. Louis to Houston George Bush Intcntl Airport in the last 72 hours was $217 (round-trip), much lower than the average airfare cost of $407 for United Airlines flights on this route.
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Why should I use momondo to find a flight deal from St. Louis to Houston?
It is quick and easy to find St. Louis to Houston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Houston that suits you.
Can I find flights from St. Louis to Houston with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Houston from St. Louis with this policy.
How can momondo help me find flights from St. Louis to Houston?
Once all potential St. Louis to Houston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from St. Louis to Houston right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis to Houston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.