Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Houston from $58

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 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:29 pm - 7:17 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
16h 48m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:28 am - 1:10 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
6h 42m1 stop Atlanta Hartsfield-Jackson
$126Frontier
Mon, Sep 14 - Wed, Sep 16
Frontier Logo
2:29 pm - 10:30 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
8h 01m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:08 am - 1:10 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
7h 02m1 stop Atlanta Hartsfield-Jackson
$127Frontier
Fri, Oct 2 - Mon, Oct 5
Frontier Logo
2:29 pm - 7:17 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
16h 48m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:04 pm - 1:10 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
16h 06m1 stop Atlanta Hartsfield-Jackson
$128Frontier
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
6:15 am - 8:32 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 17mnonstop
United Airlines Logo
8:00 am - 10:10 amIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 10mnonstop
$214United Airlines
Thu, Sep 10 - Thu, Sep 17
United Airlines Logo
6:15 am - 8:27 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 12mnonstop
United Airlines Logo
6:05 pm - 8:16 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 11mnonstop
$214United Airlines
Sat, Sep 26 - Sat, Sep 26
United Airlines Logo
11:15 am - 1:32 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 17mnonstop
United Airlines Logo
8:00 am - 10:10 amIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 10mnonstop
$214United Airlines
Tue, Sep 15 - Wed, Sep 16
American Airlines Logo
5:00 am - 10:27 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
5h 27m1 stop Chicago O'Hare Intl
American Airlines Logo
11:40 am - 4:47 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
5h 07m1 stop Chicago O'Hare Intl
$237American Airlines
Thu, Nov 26 - Tue, Dec 1
American Airlines Logo
11:34 am - 4:31 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
4h 57m1 stop Chicago O'Hare Intl
American Airlines Logo
5:27 pm - 11:59 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
6h 32m1 stop Chicago O'Hare Intl
$237American Airlines
Wed, Dec 2 - Sat, Dec 5
Delta Logo
12:00 pm - 5:23 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
5h 23m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:35 am - 10:51 amIAH  Houston George Bush Intcntl-STL Lambert-St Louis
5h 16m1 stop Atlanta Hartsfield-Jackson
$237Delta
Tue, Oct 20 - Sat, Oct 31
Delta Logo
10:05 am - 5:32 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
7h 27m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 1:23 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
6h 23m1 stop Atlanta Hartsfield-Jackson
$237Delta
Tue, Sep 15 - Wed, Sep 16

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
Frontier
Sep 14
STL2:29 pmLambert-St Louis
16h 48m
1 stop
IAH7:17 amHouston George Bush Intcntl
Sep 16
IAH6:28 amHouston George Bush Intcntl
6h 42m
1 stop
STL1:10 pmLambert-St Louis
$126
Frontier
Oct 2
STL2:29 pmLambert-St Louis
8h 01m
1 stop
IAH10:30 pmHouston George Bush Intcntl
Oct 5
IAH6:08 amHouston George Bush Intcntl
7h 02m
1 stop
STL1:10 pmLambert-St Louis
$127
Frontier
Sep 11
STL2:29 pmLambert-St Louis
16h 48m
1 stop
IAH7:17 amHouston George Bush Intcntl
Sep 15
IAH9:04 pmHouston George Bush Intcntl
16h 06m
1 stop
STL1:10 pmLambert-St Louis
$128

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
United Airlines
Aug 27
STL3:13 pmLambert-St Louis
2h 12m
IAH5:25 pmHouston George Bush Intcntl
Aug 31
IAH8:00 amHouston George Bush Intcntl
2h 10m
STL10:10 amLambert-St Louis
$354
United Airlines
Aug 27
STL9:30 amLambert-St Louis
6h 10m
1 stop
IAH3:40 pmHouston George Bush Intcntl
Aug 31
IAH3:36 pmHouston George Bush Intcntl
2h 14m
STL5:50 pmLambert-St Louis
$363
United Airlines
Aug 30
STL11:15 amLambert-St Louis
2h 17m
IAH1:32 pmHouston George Bush Intcntl
Sep 8
IAH4:20 pmHouston George Bush Intcntl
2h 11m
STL6:31 pmLambert-St Louis
$435

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Houston George Bush Intcntl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from St. Louis to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Mon 9/14

2:29 pm-7:17 am

1 stop16h 48m

Houston George Bush Intcntl

Wed 9/16

6:28 am-1:10 pm

1 stop6h 42m

$126

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Fri 10/2

2:29 pm-10:30 pm

1 stop8h 01m

Houston George Bush Intcntl

Mon 10/5

6:08 am-1:10 pm

1 stop7h 02m

$127

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Fri 9/11

2:29 pm-7:17 am

1 stop16h 48m

Houston George Bush Intcntl

Tue 9/15

9:04 pm-1:10 pm

1 stop16h 06m

$128

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Thu 9/10

6:15 am-8:32 am

Nonstop2h 17m

Houston George Bush Intcntl

Thu 9/17

8:00 am-10:10 am

Nonstop2h 10m

$214
Quickest round-trip

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Sat 9/26

6:15 am-8:27 am

Nonstop2h 12m

Houston George Bush Intcntl

Sat 9/26

6:05 pm-8:16 pm

Nonstop2h 11m

$214

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Tue 9/15

11:15 am-1:32 pm

Nonstop2h 17m

Houston George Bush Intcntl

Wed 9/16

8:00 am-10:10 am

Nonstop2h 10m

$214

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Thu 11/26

5:00 am-10:27 am

1 stop5h 27m

Houston George Bush Intcntl

Tue 12/1

11:40 am-4:47 pm

1 stop5h 07m

$237

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Wed 12/2

11:34 am-4:31 pm

1 stop4h 57m

Houston George Bush Intcntl

Sat 12/5

5:27 pm-11:59 pm

1 stop6h 32m

$237

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Tue 10/20

12:00 pm-5:23 pm

1 stop5h 23m

Houston George Bush Intcntl

Sat 10/31

5:35 am-10:51 am

1 stop5h 16m

$237

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Tue 9/15

10:05 am-5:32 pm

1 stop7h 27m

Houston George Bush Intcntl

Wed 9/16

7:00 am-1:23 pm

1 stop6h 23m

$237

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Houston from

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 low for flights on this route.

Typical prices usually range from $236 to $493.
The lowest price recently found on this route was $126.

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 $326.

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 $489. 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 $640.

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 morning. Our users have found flights to Houston George Bush Intcntl Airport in the morning for as low as $562. Try not to purchase tickets in the afternoon because they tend to be around $623. 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 $382 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 $293 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.

How have St. Louis to Houston George Bush Intcntl Airport flight prices changed over time?

As of August 2026, prices for St. Louis to Houston George Bush Intcntl Airport flights are approximately 27% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$58

Fastest flight time

2h 12m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from St. Louis in the past 72 hours is $58. The best round-trip flight deal from St. Louis to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $126.
The fastest flight from St. Louis to Houston George Bush Intcntl Airport takes 2h 12m
Direct flights go from St. Louis to Houston George Bush Intcntl Airport every day.
Search flight deals

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 12m.

  • 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?

  • 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?

  • What is the most popular airline from St. Louis to Houston George Bush Intcntl Airport?

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
FrontierPriceFrom $153Free CancellationRating
5.6
2,676 reviews
Search Frontier flights
American AirlinesPriceFrom $167Free CancellationRating
7.1
11,944 reviews
Search American Airlines flights
United AirlinesPriceFrom $255Free CancellationRating
7.4
10,107 reviews
Search United Airlines flights

  • 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 23 times per week, with 10,107 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 $255 (round-trip), much lower than the average airfare cost of $417 for United Airlines flights on this route.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Katy
The Woodlands
Humble
Conroe
Montgomery
Spring
Cypress
Jersey Village
Livingston
Tomball

Why use momondo?

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.

An easier way to manage your Houston George Bush Intcntl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 9/16
Wed 9/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston