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Cheap flights from St. Louis to Houston from $137

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 1/6. 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
7:55 pm - 10:10 pm
STL
-
HOU
2h 15mnonstop
Southwest Logo
2:35 pm - 4:30 pm
HOU
-
STL
1h 55mnonstop
$293Southwest
Tue, Jan 6 - Thu, Jan 8
Southwest Logo
11:55 am - 2:20 pm
STL
-
HOU
2h 25mnonstop
Southwest Logo
12:55 pm - 5:10 pm
HOU
-
STL
4h 15m1 stop
$299Southwest
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
11:55 am - 2:20 pm
STL
-
HOU
2h 25mnonstop
Southwest Logo
2:00 pm - 7:05 pm
HOU
-
STL
5h 05m1 stop
$303Southwest
Tue, Jan 6 - Thu, Jan 8
Southwest Logo
10:15 am - 3:15 pm
STL
-
HOU
5h 00m2 stops
Southwest Logo
6:35 pm - 8:35 pm
HOU
-
STL
2h 00mnonstop
$304Southwest
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
7:55 pm - 10:10 pm
STL
-
HOU
2h 15mnonstop
Southwest Logo
10:00 am - 4:50 pm
HOU
-
STL
6h 50m2 stops
$308Southwest
Tue, Jan 6 - Thu, Jan 8
Southwest Logo
10:15 am - 3:15 pm
STL
-
HOU
5h 00m2 stops
Southwest Logo
12:55 pm - 5:10 pm
HOU
-
STL
4h 15m1 stop
$309Southwest
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
7:55 pm - 10:10 pm
STL
-
HOU
2h 15mnonstop
Southwest Logo
6:35 pm - 8:35 pm
HOU
-
STL
2h 00mnonstop
$313Southwest
Thu, Jan 8 - Mon, Jan 12
Southwest Logo
3:10 pm - 6:55 pm
STL
-
HOU
3h 45m1 stop
Southwest Logo
11:00 am - 5:05 pm
HOU
-
STL
6h 05m2 stops
$314Southwest
Thu, Feb 5 - Tue, Feb 10
Southwest Logo
2:20 pm - 7:15 pm
STL
-
HOU
4h 55m1 stop
Southwest Logo
11:00 am - 5:05 pm
HOU
-
STL
6h 05m2 stops
$318Southwest
Tue, Jan 6 - Thu, Jan 8
Southwest Logo
7:55 pm - 10:10 pm
STL
-
HOU
2h 15mnonstop
Southwest Logo
12:55 pm - 5:10 pm
HOU
-
STL
4h 15m1 stop
$319Southwest
Thu, Jan 8 - Mon, Jan 12

Southwest flights from St. Louis to Houston Hobby Airport

Our best Southwest deals on St. Louis to Houston Hobby Airport flight tickets
Southwest
Jan 6
STL7:55 pmLambert-St Louis
2h 15m
HOU10:10 pmHouston Hobby
Jan 8
HOU2:35 pmHouston Hobby
1h 55m
STL4:30 pmLambert-St Louis
$293
Find similar
Southwest
Jan 21
STL11:55 amLambert-St Louis
2h 25m
HOU2:20 pmHouston Hobby
Jan 26
HOU12:55 pmHouston Hobby
4h 15m
1 stop
STL5:10 pmLambert-St Louis
$299
Find similar
Southwest
Jan 6
STL11:55 amLambert-St Louis
2h 25m
HOU2:20 pmHouston Hobby
Jan 8
HOU2:00 pmHouston Hobby
5h 05m
1 stop
STL7:05 pmLambert-St Louis
$303
Find similar

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
Jan 1
STL7:00 amLambert-St Louis
8h 47m
1 stop
HOU3:47 pmHouston Hobby
Jan 6
HOU10:35 amHouston Hobby
5h 39m
1 stop
STL4:14 pmLambert-St Louis
$372
Find similar
American Airlines
Feb 1
STL11:55 amLambert-St Louis
4h 17m
1 stop
HOU4:12 pmHouston Hobby
Feb 5
HOU10:35 amHouston Hobby
5h 39m
1 stop
STL4:14 pmLambert-St Louis
$374
Find similar
American Airlines
Jan 16
STL6:00 amLambert-St Louis
6h 09m
1 stop
HOU12:09 pmHouston Hobby
Jan 19
HOU10:35 amHouston Hobby
5h 39m
1 stop
STL4:14 pmLambert-St Louis
$409
Find similar

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 December 18, 2025.
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 1/6

7:55 pm-10:10 pm

Nonstop2h 15m

Houston Hobby

Thu 1/8

2:35 pm-4:30 pm

Nonstop1h 55m

$293

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 1/21

11:55 am-2:20 pm

Nonstop2h 25m

Houston Hobby

Mon 1/26

12:55 pm-5:10 pm

1 stop4h 15m

$299

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 1/6

11:55 am-2:20 pm

Nonstop2h 25m

Houston Hobby

Thu 1/8

2:00 pm-7:05 pm

1 stop5h 05m

$303

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 1/21

10:15 am-3:15 pm

2 stops5h 00m

Houston Hobby

Mon 1/26

6:35 pm-8:35 pm

Nonstop2h 00m

$304

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 1/6

7:55 pm-10:10 pm

Nonstop2h 15m

Houston Hobby

Thu 1/8

10:00 am-4:50 pm

2 stops6h 50m

$308

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 1/21

10:15 am-3:15 pm

2 stops5h 00m

Houston Hobby

Mon 1/26

12:55 pm-5:10 pm

1 stop4h 15m

$309

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 1/8

7:55 pm-10:10 pm

Nonstop2h 15m

Houston Hobby

Mon 1/12

6:35 pm-8:35 pm

Nonstop2h 00m

$313

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 2/5

3:10 pm-6:55 pm

1 stop3h 45m

Houston Hobby

Tue 2/10

11:00 am-5:05 pm

2 stops6h 05m

$314

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 1/6

2:20 pm-7:15 pm

1 stop4h 55m

Houston Hobby

Thu 1/8

11:00 am-5:05 pm

2 stops6h 05m

$318

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 1/8

7:55 pm-10:10 pm

Nonstop2h 15m

Houston Hobby

Mon 1/12

12:55 pm-5:10 pm

1 stop4h 15m

$319

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 $287.

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 $339. 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 $497.

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 $637. 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 $337 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 $244 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 December 2025, prices for St. Louis to Houston Hobby Airport flights are approximately 36% 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

$208

Fastest flight time

2h 15m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun
The best one-way flight to Houston Hobby Airport from St. Louis in the past 72 hours is $208. The best round-trip flight deal from St. Louis to Houston Hobby Airport found on momondo in the last 72 hours is $375.
The fastest flight from St. Louis to Houston Hobby Airport takes 2h 15m
Direct flights go from St. Louis to Houston Hobby Airport on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
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 15m.

  • 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 $127Free CancellationRating
6.3
8,190 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $136Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
FrontierPriceFrom $138Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
SouthwestPriceFrom $177Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Houston Hobby Airport

    Southwest flies from St. Louis to Houston Hobby Airport around 14 times per week, with 4,250 momondo users rating the airline 7.9/10. 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 $364 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
Kemah
Sugar Land
Pasadena
Baytown
Texas City
Rosenberg
Webster
Pearland
Freeport
Lake Jackson
League City
Stafford
Missouri City
Seabrook
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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