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Cheap flights from St. Louis to Houston from $59

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
10:35 am - 3:05 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
28h 30m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:35 pm - 9:40 amIAH  Houston George Bush Intcntl-STL Lambert-St Louis
20h 05m1 stop Atlanta Hartsfield-Jackson
$124Frontier
Mon, Oct 19 - Wed, Oct 28
Frontier Logo
6:17 pm - 10:14 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
27h 57m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
4:32 pm - 5:22 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
24h 50m1 stop Atlanta Hartsfield-Jackson
$127Frontier
Mon, Aug 31 - Sat, Sep 5
Southwest Logo
12:15 pm - 2:15 pmSTL  Lambert-St Louis-HOU Houston Hobby
2h 00mnonstop
Southwest Logo
7:35 am - 9:35 amHOU  Houston Hobby-STL Lambert-St Louis
2h 00mnonstop
$208Southwest
Fri, Sep 11 - Tue, Sep 15
Southwest Logo
2:25 pm - 4:25 pmSTL  Lambert-St Louis-HOU Houston Hobby
2h 00mnonstop
Southwest Logo
7:50 pm - 9:55 pmHOU  Houston Hobby-STL Lambert-St Louis
2h 05mnonstop
$217Southwest
Sun, Sep 6 - Fri, Sep 11
United Airlines Logo
6:15 am - 8:32 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 17mnonstop
United Airlines Logo
3:52 pm - 6:06 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 14mnonstop
$231United Airlines
Sat, Sep 5 - Mon, Sep 7
United Airlines Logo
6:15 am - 8:27 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 12mnonstop
United Airlines Logo
8:00 am - 10:02 amIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 02mnonstop
$235United Airlines
Mon, Oct 19 - Wed, Oct 28
American Airlines Logo
5:42 am - 10:42 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
5h 00m1 stop Dallas/Fort Worth
American Airlines Logo
2:09 pm - 6:05 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
3h 56m1 stop Dallas/Fort Worth
$237American Airlines
Sat, Sep 5 - Sun, Sep 6
American Airlines Logo
10:16 am - 3:31 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
5h 15m1 stop Dallas/Fort Worth
American Airlines Logo
9:03 am - 2:45 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
5h 42m1 stop Dallas/Fort Worth
$237American Airlines
Sat, Sep 5 - Sun, Sep 6
Delta Logo
5:38 pm - 11:03 pmSTL  Lambert-St Louis-HOU Houston Hobby
5h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:28 pm - 11:54 pmHOU  Houston Hobby-STL Lambert-St Louis
6h 26m1 stop Atlanta Hartsfield-Jackson
$255Delta
Sat, Oct 17 - Mon, Oct 19
Delta Logo
7:00 am - 12:16 pmSTL  Lambert-St Louis-HOU Houston Hobby
5h 16m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:56 amHOU  Houston Hobby-STL Lambert-St Louis
5h 56m1 stop Atlanta Hartsfield-Jackson
$272Delta
Thu, Sep 3 - Sun, Sep 6

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Southwest flights from St. Louis to Houston

Our best Southwest deals on St. Louis to Houston flight tickets
Southwest
Sep 11
STL12:15 pmLambert-St Louis
2h 00m
HOU2:15 pmHouston Hobby
Sep 15
HOU7:35 amHouston Hobby
2h 00m
STL9:35 amLambert-St Louis
$208
Southwest
Sep 6
STL2:25 pmLambert-St Louis
2h 00m
HOU4:25 pmHouston Hobby
Sep 11
HOU7:50 pmHouston Hobby
2h 05m
STL9:55 pmLambert-St Louis
$217
Southwest
Sep 5
STL2:05 pmLambert-St Louis
5h 55m
1 stop
HOU8:00 pmHouston Hobby
Sep 6
HOU8:50 amHouston Hobby
7h 05m
1 stop
STL3:55 pmLambert-St Louis
$218

American Airlines flights from St. Louis to Houston

Our best American Airlines deals on St. Louis to Houston flight tickets
American Airlines
Sep 5
STL10:16 amLambert-St Louis
5h 15m
1 stop
IAH3:31 pmHouston George Bush Intcntl
Sep 6
IAH9:03 amHouston George Bush Intcntl
5h 42m
1 stop
STL2:45 pmLambert-St Louis
$237
American Airlines
Sep 3
STL8:36 amLambert-St Louis
6h 55m
1 stop
IAH3:31 pmHouston George Bush Intcntl
Sep 6
IAH6:49 pmHouston George Bush Intcntl
4h 53m
1 stop
STL11:42 pmLambert-St Louis
$246
American Airlines
Sep 9
STL7:00 amLambert-St Louis
6h 25m
1 stop
HOU1:25 pmHouston Hobby
Sep 10
HOU6:19 pmHouston Hobby
5h 24m
1 stop
STL11:43 pmLambert-St Louis
$257

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Houston 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 11, 2026.
Use the filters below to find and compare flights from St. Louis to Houston 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 10/19

10:35 am-3:05 pm

1 stop28h 30m

Houston George Bush Intcntl

Wed 10/28

1:35 pm-9:40 am

1 stop20h 05m

$124

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Mon 8/31

6:17 pm-10:14 pm

1 stop27h 57m

Houston George Bush Intcntl

Sat 9/5

4:32 pm-5:22 pm

1 stop24h 50m

$127
Quickest round-trip

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Fri 9/11

12:15 pm-2:15 pm

Nonstop2h 00m

Houston Hobby

Tue 9/15

7:35 am-9:35 am

Nonstop2h 00m

$208

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Sun 9/6

2:25 pm-4:25 pm

Nonstop2h 00m

Houston Hobby

Fri 9/11

7:50 pm-9:55 pm

Nonstop2h 05m

$217

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Sat 9/5

6:15 am-8:32 am

Nonstop2h 17m

Houston George Bush Intcntl

Mon 9/7

3:52 pm-6:06 pm

Nonstop2h 14m

$231

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Mon 10/19

6:15 am-8:27 am

Nonstop2h 12m

Houston George Bush Intcntl

Wed 10/28

8:00 am-10:02 am

Nonstop2h 02m

$235

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Sat 9/5

5:42 am-10:42 am

1 stop5h 00m

Houston George Bush Intcntl

Sun 9/6

2:09 pm-6:05 pm

1 stop3h 56m

$237

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Sat 9/5

10:16 am-3:31 pm

1 stop5h 15m

Houston George Bush Intcntl

Sun 9/6

9:03 am-2:45 pm

1 stop5h 42m

$237

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Sat 10/17

5:38 pm-11:03 pm

1 stop5h 25m

Houston Hobby

Mon 10/19

5:28 pm-11:54 pm

1 stop6h 26m

$255

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Thu 9/3

7:00 am-12:16 pm

1 stop5h 16m

Houston Hobby

Sun 9/6

6:00 am-11:56 am

1 stop5h 56m

$272

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from St. Louis to Houston

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?

Prices are currently low for flights on this route.

Typical prices usually range from $277 to $415.
The lowest price recently found on this route was $124.

What is the cheapest month to fly to Houston?

The month of September is, on average, the cheapest month to fly to Houston from St. Louis, with most prices found around $311. The month of October is another great option to travel to Houston, with average flight prices from St. Louis averaging around $317.

What is the cheapest day to depart on your flight to Houston?

On average, the least expensive day to fly to Houston from St. Louis is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $393. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Sunday is $465.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest St. Louis to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $417. Try not to purchase tickets in the morning because they tend to be around $533. 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 flight route?

Fly from Lambert-St Louis to Houston Hobby for the best Lambert-St Louis - Houston flight prices

How far in advance should I book a flight from St. Louis to Houston?

You are more likely to see cheaper flights to Houston from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $377 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from St. Louis for as low as $305 on momondo.

What cabin class options are available on St. Louis to Houston flights?

There are 4 cabin classes available to choose from on St. Louis to Houston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap St. Louis to Houston flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Houston

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from St. Louis to Houston takes 2h 00m
Direct flights go from St. Louis to Houston every day.
There are 2 airports in Houston. From St. Louis there are direct flights to Houston George Bush Intcntl (IAH), Houston Hobby (HOU).
Search flight deals

Frequently asked questions about flying from St. Louis to Houston

  • How far is Lambert-St Louis to Houston by plane?

    A flight from Lambert-St Louis to Houston will travel around 679.6 mi. 2h 00m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Houston?

    Prices for flights from Lambert-St Louis Airport to Houston are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Houston?

  • How old do you have to be to fly from Lambert-St Louis Airport to Houston?

    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.

  • What documentation or ID do you need to fly to Houston?

    The necessary travel and health documents for your Houston 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.

Best airlines flying from St. Louis to Houston

Compare and see reviews for airlines that fly from St. Louis to Houston with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $128Free CancellationRating
5.6
2,706 reviews
Search Frontier flights
United AirlinesPriceFrom $131Free CancellationRating
7.4
10,102 reviews
Search United Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.1
11,902 reviews
Search American Airlines flights
JetBluePriceFrom $269Free CancellationRating
7.1
3,034 reviews
Search JetBlue flights
SouthwestPriceFrom $275Free CancellationRating
8.0
4,218 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Houston?

Finding the right flight to Houston from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Houston quick and easy, saving you time and money.

Can I find flights from St. Louis to Houston with flexible booking policies on momondo?

All flight searches from St. Louis to Houston on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Houston?

Once you have performed a search for St. Louis to Houston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Houston right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Houston from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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