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Cheap flights from St. Louis to Houston from $99

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 3/7. 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
0 bags

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Find the cheapest flights from St. Louis to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
4:25 pm - 6:35 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
7:15 am - 12:50 pm
HOU
-
STL
5h 35m
1 stop
$287Southwest
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
4:25 pm - 6:35 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
12:30 pm - 5:55 pm
HOU
-
STL
5h 25m
2 stops
$292Southwest
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
4:25 pm - 6:35 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
7:35 am - 9:35 am
HOU
-
STL
2h 00mnonstop
$297Southwest
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
5:45 am - 10:50 am
STL
-
HOU
5h 05m
1 stop
Southwest Logo
12:30 pm - 5:55 pm
HOU
-
STL
5h 25m
2 stops
$302Southwest
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
6:50 pm - 11:58 pm
STL
-
HOU
5h 08m
1 stop
American Airlines Logo
6:00 am - 10:59 am
HOU
-
STL
4h 59m
1 stop
$306American Airlines
Sat, Mar 28 - Sun, Apr 5
Southwest Logo
8:25 am - 10:35 am
STL
-
HOU
2h 10mnonstop
Southwest Logo
4:00 pm - 6:00 pm
HOU
-
STL
2h 00mnonstop
$317Southwest
Thu, Apr 23 - Sat, May 2
American Airlines Logo
6:50 pm - 11:58 pm
STL
-
HOU
5h 08m
1 stop
American Airlines Logo
6:00 am - 11:01 am
HOU
-
STL
5h 01m
1 stop
$321American Airlines
Sun, Mar 1 - Wed, Mar 4
Southwest Logo
5:40 am - 7:50 am
STL
-
HOU
2h 10mnonstop
Southwest Logo
3:25 pm - 7:45 pm
HOU
-
STL
4h 20m
1 stop
$323Southwest
Thu, Apr 16 - Sat, Apr 18
Southwest Logo
8:45 am - 10:55 am
STL
-
HOU
2h 10mnonstop
Southwest Logo
5:10 am - 10:15 am
HOU
-
STL
5h 05m
1 stop
$327Southwest
Sat, May 16 - Mon, May 18
Southwest Logo
5:20 pm - 7:30 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
5:30 pm - 11:15 pm
HOU
-
STL
5h 45m
2 stops
$332Southwest
Sat, May 16 - Mon, May 18

American Airlines flights from St. Louis to Houston Hobby Airport

Our best American Airlines deals on St. Louis to Houston Hobby Airport flight tickets
American Airlines
Mar 28
STL6:50 pmLambert-St Louis
5h 08m
1 stop
HOU11:58 pmHouston Hobby
Apr 5
HOU6:00 amHouston Hobby
4h 59m
1 stop
STL10:59 amLambert-St Louis
$306
American Airlines
Mar 1
STL6:50 pmLambert-St Louis
5h 08m
1 stop
HOU11:58 pmHouston Hobby
Mar 4
HOU6:00 amHouston Hobby
5h 01m
1 stop
STL11:01 amLambert-St Louis
$321
American Airlines
Feb 20
STL6:50 pmLambert-St Louis
5h 08m
1 stop
HOU11:58 pmHouston Hobby
Feb 28
HOU12:18 pmHouston Hobby
4h 55m
1 stop
STL5:13 pmLambert-St Louis
$344

Southwest flights from St. Louis to Houston Hobby Airport

Our best Southwest deals on St. Louis to Houston Hobby Airport flight tickets
Southwest
Apr 7
STL4:25 pmLambert-St Louis
2h 10m
HOU6:35 pmHouston Hobby
Apr 8
HOU7:15 amHouston Hobby
5h 35m
1 stop
STL12:50 pmLambert-St Louis
$287
Southwest
Apr 7
STL4:25 pmLambert-St Louis
2h 10m
HOU6:35 pmHouston Hobby
Apr 8
HOU12:30 pmHouston Hobby
5h 25m
2 stops
STL5:55 pmLambert-St Louis
$292
Southwest
Apr 7
STL4:25 pmLambert-St Louis
2h 10m
HOU6:35 pmHouston Hobby
Apr 8
HOU7:35 amHouston Hobby
2h 00m
STL9:35 amLambert-St Louis
$297

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Houston Hobby 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 February 5, 2026.
Use the filters below to find and compare flights from St. Louis to Houston Hobby Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 4/7

4:25 pm-6:35 pm

Nonstop2h 10m

Houston Hobby

Wed 4/8

7:15 am-12:50 pm

1 stop5h 35m

$287

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 4/7

4:25 pm-6:35 pm

Nonstop2h 10m

Houston Hobby

Wed 4/8

12:30 pm-5:55 pm

2 stops5h 25m

$292

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 4/7

4:25 pm-6:35 pm

Nonstop2h 10m

Houston Hobby

Wed 4/8

7:35 am-9:35 am

Nonstop2h 00m

$297

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 4/7

5:45 am-10:50 am

1 stop5h 05m

Houston Hobby

Wed 4/8

12:30 pm-5:55 pm

2 stops5h 25m

$302

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 3/28

6:50 pm-11:58 pm

1 stop5h 08m

Houston Hobby

Sun 4/5

6:00 am-10:59 am

1 stop4h 59m

$306

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 4/23

8:25 am-10:35 am

Nonstop2h 10m

Houston Hobby

Sat 5/2

4:00 pm-6:00 pm

Nonstop2h 00m

$317

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sun 3/1

6:50 pm-11:58 pm

1 stop5h 08m

Houston Hobby

Wed 3/4

6:00 am-11:01 am

1 stop5h 01m

$321

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 4/16

5:40 am-7:50 am

Nonstop2h 10m

Houston Hobby

Sat 4/18

3:25 pm-7:45 pm

1 stop4h 20m

$323

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 5/16

8:45 am-10:55 am

Nonstop2h 10m

Houston Hobby

Mon 5/18

5:10 am-10:15 am

1 stop5h 05m

$327

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 5/16

5:20 pm-7:30 pm

Nonstop2h 10m

Houston Hobby

Mon 5/18

5:30 pm-11:15 pm

2 stops5h 45m

$332

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 Hobby 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 cheapest month to fly to Houston Hobby Airport?

In general, September is the cheapest month to fly from St. Louis to Houston Hobby Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $251. The month of August is another great option to travel to Houston Hobby Airport, with average flight prices from St. Louis averaging around $292.

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

Our data shows that Monday is the least expensive day to fly to Houston Hobby Airport. Tickets to fly out on this day can be as low as $331. 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 Hobby Airport on Sunday is $496.

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

According to our data, the cheapest time of day to fly to Houston Hobby Airport is in the evening. momondo users have found flights departing from St. Louis to Houston Hobby Airport in the evening for as low as $362. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $630. 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 Hobby flight route?

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

How far in advance should I book a flight to Houston Hobby Airport?

You are more likely to see cheaper flights to Houston Hobby Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston Hobby Airport for around $341 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston Hobby Airport from St. Louis for as low as $265 on momondo.

What cabin class options are available on Lambert-St Louis to Houston Hobby flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Houston Hobby 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 Hobby Airport flight prices changed over time?

As of February 2026, prices for St. Louis to Houston Hobby Airport flights are approximately 49% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Houston Hobby Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Houston Hobby 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 Hobby Airport (STL to HOU) flight deals and tips

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

Best Price Found

$197

Fastest flight time

2h 05m

Direct flights

Every day
The best one-way flight to Houston Hobby Airport from St. Louis in the past 72 hours is $197. The best round-trip flight deal from St. Louis to Houston Hobby Airport found on momondo in the last 72 hours is $365.
The fastest flight from St. Louis to Houston Hobby Airport takes 2h 05m
Direct flights go from St. Louis to Houston Hobby Airport every day.
Search flight deals

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

    There are 684.3 mi between Lambert-St Louis and Houston Hobby. By plane, this route typically takes 2h 05m.

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

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

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

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

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

    The necessary travel and health documents for your Houston Hobby 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 Hobby Airport?

  • What is the most popular airline from St. Louis to Houston Hobby Airport?

Best airlines flying from St. Louis to Houston Hobby Airport

Compare and see reviews for airlines that fly from St. Louis to Houston Hobby Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $108Free CancellationRating
6.3
8,414 reviews
Search Spirit Airlines flights
FrontierPriceFrom $128Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
United AirlinesPriceFrom $138Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,274 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Houston Hobby Airport

    Southwest flies from St. Louis to Houston Hobby Airport around 26 times per week, with 4,274 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Houston Hobby Airport in the last 72 hours was $177 (round-trip), much lower than the average airfare cost of $365 for Southwest flights on this route.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Galveston
Sugar Land
Kemah
Pasadena
Baytown
Texas City
Rosenberg
Webster
Pearland
Freeport
League City
Lake Jackson
Stafford
Seabrook
Missouri City
La Marque
West University Place
Nassau Bay

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Houston. momondo saves you time and could save you money on your trip.

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

Flights from St. Louis to Houston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between St. Louis and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Houston, momondo offers a useful price alert feature which will track prices for flights to Houston from St. Louis and alert you when they change.

An easier way to manage your Houston Hobby Airport trip

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