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Cheap flights from St. Louis to Houston from $116

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 4/22. 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
7:15 pm - 9:25 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
9:55 pm - 11:55 pm
HOU
-
STL
2h 00mnonstop
$277Southwest
Thu, Apr 9 - Mon, Apr 13
Southwest Logo
10:25 am - 2:55 pm
STL
-
HOU
4h 30m
1 stop
Southwest Logo
10:35 am - 2:55 pm
HOU
-
STL
4h 20m
1 stop
$278Southwest
Wed, Apr 15 - Thu, Apr 16
Southwest Logo
5:45 am - 11:45 am
STL
-
HOU
6h 00m
1 stop
Southwest Logo
3:40 pm - 8:00 pm
HOU
-
STL
4h 20m
1 stop
$282Southwest
Mon, Apr 27 - Tue, Apr 28
Southwest Logo
8:45 am - 10:55 am
STL
-
HOU
2h 10mnonstop
Southwest Logo
3:25 pm - 7:45 pm
HOU
-
STL
4h 20m
1 stop
$283Southwest
Sat, Apr 11 - Sat, Apr 18
Southwest Logo
5:45 am - 11:45 am
STL
-
HOU
6h 00m
1 stop
Southwest Logo
7:35 am - 9:35 am
HOU
-
STL
2h 00mnonstop
$287Southwest
Thu, Apr 9 - Sat, Apr 11
Southwest Logo
6:10 am - 11:45 am
STL
-
HOU
5h 35m
1 stop
Southwest Logo
3:25 pm - 7:45 pm
HOU
-
STL
4h 20m
1 stop
$292Southwest
Sat, Apr 11 - Sat, Apr 18
Southwest Logo
4:10 pm - 8:20 pm
STL
-
HOU
4h 10m
1 stop
Southwest Logo
8:30 pm - 12:15 am
HOU
-
STL
3h 45m
1 stop
$297Southwest
Fri, Apr 17 - Mon, Apr 20
Southwest Logo
3:40 pm - 7:35 pm
STL
-
HOU
3h 55m
1 stop
Southwest Logo
8:10 am - 3:20 pm
HOU
-
STL
7h 10m
2 stops
$302Southwest
Sat, Apr 11 - Sat, Apr 18
Southwest Logo
5:40 am - 1:00 pm
STL
-
HOU
7h 20m
2 stops
Southwest Logo
5:30 pm - 11:15 pm
HOU
-
STL
5h 45m
2 stops
$307Southwest
Sat, Apr 25 - Mon, Apr 27
Southwest Logo
5:20 pm - 7:30 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
9:55 pm - 11:55 pm
HOU
-
STL
2h 00mnonstop
$312Southwest
Sat, May 16 - Mon, May 18

Southwest flights from St. Louis to Houston Hobby Airport

Our best Southwest deals on St. Louis to Houston Hobby Airport flight tickets
Southwest
Apr 9
STL7:15 pmLambert-St Louis
2h 10m
HOU9:25 pmHouston Hobby
Apr 13
HOU9:55 pmHouston Hobby
2h 00m
STL11:55 pmLambert-St Louis
$277
Southwest
Apr 15
STL10:25 amLambert-St Louis
4h 30m
1 stop
HOU2:55 pmHouston Hobby
Apr 16
HOU10:35 amHouston Hobby
4h 20m
1 stop
STL2:55 pmLambert-St Louis
$278
Southwest
Apr 27
STL5:45 amLambert-St Louis
6h 00m
1 stop
HOU11:45 amHouston Hobby
Apr 28
HOU3:40 pmHouston Hobby
4h 20m
1 stop
STL8:00 pmLambert-St Louis
$282

Delta flights from St. Louis to Houston Hobby Airport

Our best Delta deals on St. Louis to Houston Hobby Airport flight tickets
Delta
May 3
STL6:00 amLambert-St Louis
6h 40m
1 stop
HOU12:40 pmHouston Hobby
May 16
HOU5:04 pmHouston Hobby
6h 55m
1 stop
STL11:59 pmLambert-St Louis
$366
Delta
May 19
STL9:15 amLambert-St Louis
6h 54m
1 stop
HOU4:09 pmHouston Hobby
May 20
HOU5:02 pmHouston Hobby
6h 57m
1 stop
STL11:59 pmLambert-St Louis
$385
Delta
Apr 2
STL6:00 amLambert-St Louis
7h 28m
1 stop
HOU1:28 pmHouston Hobby
Apr 8
HOU2:13 pmHouston Hobby
6h 53m
1 stop
STL9:06 pmLambert-St Louis
$390

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 March 23, 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

Cheapest round-trip
Quickest round-trip

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 4/9

7:15 pm-9:25 pm

Nonstop2h 10m

Houston Hobby

Mon 4/13

9:55 pm-11:55 pm

Nonstop2h 00m

$277

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 4/15

10:25 am-2:55 pm

1 stop4h 30m

Houston Hobby

Thu 4/16

10:35 am-2:55 pm

1 stop4h 20m

$278

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Mon 4/27

5:45 am-11:45 am

1 stop6h 00m

Houston Hobby

Tue 4/28

3:40 pm-8:00 pm

1 stop4h 20m

$282

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 4/11

8:45 am-10:55 am

Nonstop2h 10m

Houston Hobby

Sat 4/18

3:25 pm-7:45 pm

1 stop4h 20m

$283

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 4/9

5:45 am-11:45 am

1 stop6h 00m

Houston Hobby

Sat 4/11

7:35 am-9:35 am

Nonstop2h 00m

$287

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 4/11

6:10 am-11:45 am

1 stop5h 35m

Houston Hobby

Sat 4/18

3:25 pm-7:45 pm

1 stop4h 20m

$292

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Fri 4/17

4:10 pm-8:20 pm

1 stop4h 10m

Houston Hobby

Mon 4/20

8:30 pm-12:15 am

1 stop3h 45m

$297

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 4/11

3:40 pm-7:35 pm

1 stop3h 55m

Houston Hobby

Sat 4/18

8:10 am-3:20 pm

2 stops7h 10m

$302

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 4/25

5:40 am-1:00 pm

2 stops7h 20m

Houston Hobby

Mon 4/27

5:30 pm-11:15 pm

2 stops5h 45m

$307

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 5/16

5:20 pm-7:30 pm

Nonstop2h 10m

Houston Hobby

Mon 5/18

9:55 pm-11:55 pm

Nonstop2h 00m

$312

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 typical price of a round-trip flight between St. Louis and Houston Hobby Airport?

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 Thursday is the least expensive day to fly to Houston Hobby Airport. Tickets to fly out on this day can be as low as $373. 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 $483.

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 $381. 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 $597. 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 $342 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 $245 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 March 2026, prices for St. Louis to Houston Hobby Airport flights are approximately 37% more expensive 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

$182

Fastest flight time

2h 05m

Direct flights

Wed, Thu, Fri, Sat and Sun
The best one-way flight to Houston Hobby Airport from St. Louis in the past 72 hours is $182. The best round-trip flight deal from St. Louis to Houston Hobby Airport found on momondo in the last 72 hours is $359.
The fastest flight from St. Louis to Houston Hobby Airport takes 2h 05m
Direct flights go from St. Louis to Houston Hobby Airport on Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
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
8,538 reviews
Search Spirit Airlines flights
FrontierPriceFrom $128Free CancellationRating
5.7
3,020 reviews
Search Frontier flights
United AirlinesPriceFrom $131Free CancellationRating
7.4
9,463 reviews
Search United Airlines flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,324 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Houston Hobby Airport

    Southwest flies from St. Louis to Houston Hobby Airport around 29 times per week, with 4,324 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 $369 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
Pasadena
Kemah
Baytown
Texas City
Webster
Rosenberg
Pearland
Freeport
League City
Lake Jackson
Stafford
Seabrook
Missouri City
West University Place
La Marque
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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