Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Houston from $139

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 6/2. 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

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from St. Louis to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
5:25 am - 7:30 am
STL
-
HOU
2h 05mnonstop
Southwest Logo
7:05 pm - 9:10 pm
HOU
-
STL
2h 05mnonstop
$277Southwest
Wed, Jun 10 - Tue, Jun 16
Southwest Logo
5:15 am - 7:30 am
STL
-
HOU
2h 15mnonstop
Southwest Logo
8:15 am - 12:35 pm
HOU
-
STL
4h 20m
1 stop
$283Southwest
Tue, Jun 2 - Tue, Jun 9
Southwest Logo
9:45 pm - 11:55 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
7:35 am - 9:35 am
HOU
-
STL
2h 00mnonstop
$284Southwest
Mon, Jun 1 - Tue, Jun 2
Southwest Logo
4:25 pm - 6:35 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
7:00 am - 12:05 pm
HOU
-
STL
5h 05m
1 stop
$287Southwest
Wed, Jun 3 - Wed, Jun 10
Southwest Logo
8:35 am - 1:45 pm
STL
-
HOU
5h 10m
2 stops
Southwest Logo
10:35 am - 12:40 pm
HOU
-
STL
2h 05mnonstop
$288Southwest
Tue, Jul 28 - Tue, Aug 4
Southwest Logo
7:15 pm - 9:25 pm
STL
-
HOU
2h 10mnonstop
Southwest Logo
7:20 am - 9:25 am
HOU
-
STL
2h 05mnonstop
$291Southwest
Thu, May 28 - Thu, Jun 4
Southwest Logo
5:40 pm - 11:25 pm
STL
-
HOU
5h 45m
1 stop
Southwest Logo
3:00 pm - 7:20 pm
HOU
-
STL
4h 20m
1 stop
$292Southwest
Tue, Jun 2 - Tue, Jun 9
Southwest Logo
4:30 pm - 9:05 pm
STL
-
HOU
4h 35m
1 stop
Southwest Logo
8:15 pm - 10:20 pm
HOU
-
STL
2h 05mnonstop
$294Southwest
Mon, Jun 1 - Tue, Jun 2
Delta Logo
6:00 am - 12:11 pm
STL
-
HOU
6h 11m
1 stop
Delta Logo
5:08 pm - 11:56 pm
HOU
-
STL
6h 48m
1 stop
$297Delta
Wed, Jun 3 - Wed, Jun 10
Southwest Logo
8:35 am - 1:45 pm
STL
-
HOU
5h 10m
2 stops
Southwest Logo
2:05 pm - 8:00 pm
HOU
-
STL
5h 55m
1 stop
$298Southwest
Tue, Jul 28 - Tue, Aug 4

Delta flights from St. Louis to Houston Hobby Airport

Our best Delta deals on St. Louis to Houston Hobby Airport flight tickets
Delta
Jun 3
STL6:00 amLambert-St Louis
6h 11m
1 stop
HOU12:11 pmHouston Hobby
Jun 10
HOU5:08 pmHouston Hobby
6h 48m
1 stop
STL11:56 pmLambert-St Louis
$297
Delta
Oct 31
STL6:00 amLambert-St Louis
6h 14m
1 stop
HOU12:14 pmHouston Hobby
Oct 31
HOU5:35 pmHouston Hobby
6h 04m
1 stop
STL11:39 pmLambert-St Louis
$321
Delta
Oct 31
STL7:20 amLambert-St Louis
4h 54m
1 stop
HOU12:14 pmHouston Hobby
Oct 31
HOU5:35 pmHouston Hobby
6h 04m
1 stop
STL11:39 pmLambert-St Louis
$339

Southwest flights from St. Louis to Houston Hobby Airport

Our best Southwest deals on St. Louis to Houston Hobby Airport flight tickets
Southwest
Jun 10
STL5:25 amLambert-St Louis
2h 05m
HOU7:30 amHouston Hobby
Jun 16
HOU7:05 pmHouston Hobby
2h 05m
STL9:10 pmLambert-St Louis
$277
Southwest
Jun 2
STL5:15 amLambert-St Louis
2h 15m
HOU7:30 amHouston Hobby
Jun 9
HOU8:15 amHouston Hobby
4h 20m
1 stop
STL12:35 pmLambert-St Louis
$283
Southwest
Jun 1
STL9:45 pmLambert-St Louis
2h 10m
HOU11:55 pmHouston Hobby
Jun 2
HOU7:35 amHouston Hobby
2h 00m
STL9:35 amLambert-St Louis
$284

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 May 10, 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

Wed 6/10

5:25 am-7:30 am

Nonstop2h 05m

Houston Hobby

Tue 6/16

7:05 pm-9:10 pm

Nonstop2h 05m

$277

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 6/2

5:15 am-7:30 am

Nonstop2h 15m

Houston Hobby

Tue 6/9

8:15 am-12:35 pm

1 stop4h 20m

$283

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Mon 6/1

9:45 pm-11:55 pm

Nonstop2h 10m

Houston Hobby

Tue 6/2

7:35 am-9:35 am

Nonstop2h 00m

$284

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 6/3

4:25 pm-6:35 pm

Nonstop2h 10m

Houston Hobby

Wed 6/10

7:00 am-12:05 pm

1 stop5h 05m

$287

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 7/28

8:35 am-1:45 pm

2 stops5h 10m

Houston Hobby

Tue 8/4

10:35 am-12:40 pm

Nonstop2h 05m

$288

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 5/28

7:15 pm-9:25 pm

Nonstop2h 10m

Houston Hobby

Thu 6/4

7:20 am-9:25 am

Nonstop2h 05m

$291

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 6/2

5:40 pm-11:25 pm

1 stop5h 45m

Houston Hobby

Tue 6/9

3:00 pm-7:20 pm

1 stop4h 20m

$292

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Mon 6/1

4:30 pm-9:05 pm

1 stop4h 35m

Houston Hobby

Tue 6/2

8:15 pm-10:20 pm

Nonstop2h 05m

$294

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 6/3

6:00 am-12:11 pm

1 stop6h 11m

Houston Hobby

Wed 6/10

5:08 pm-11:56 pm

1 stop6h 48m

$297

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 7/28

8:35 am-1:45 pm

2 stops5h 10m

Houston Hobby

Tue 8/4

2:05 pm-8:00 pm

1 stop5h 55m

$298

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 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 October is another great option to travel to Houston Hobby Airport, with average flight prices from St. Louis averaging around $279.

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

Our data shows that Tuesday is the least expensive day to fly to Houston Hobby Airport. Tickets to fly out on this day can be as low as $383. 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 $455.

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 $395. 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 morning because they tend to be around $525. 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 from St. Louis 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 $352 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 $235 on momondo.

How have St. Louis to Houston Hobby Airport flight prices changed over time?

As of May 2026, prices for St. Louis to Houston Hobby Airport flights are approximately 80% 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

$185

Fastest flight time

2h 00m

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 $185. The best round-trip flight deal from St. Louis to Houston Hobby Airport found on momondo in the last 72 hours is $358.
The fastest flight from St. Louis to Houston Hobby Airport takes 2h 00m
Direct flights go from St. Louis to Houston Hobby Airport on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
Search flight deals

Frequently asked questions about flying from St. Louis to Houston Hobby Airport

  • 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 00m.

  • 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
8,635 reviews
Search Spirit Airlines flights
FrontierPriceFrom $126Free CancellationRating
5.6
2,955 reviews
Search Frontier flights
United AirlinesPriceFrom $131Free CancellationRating
7.4
9,698 reviews
Search United Airlines flights
SouthwestPriceFrom $217Free CancellationRating
7.9
4,301 reviews
Search Southwest flights

  • Southwest Flights From St. Louis to Houston Hobby Airport

    Southwest flies from St. Louis to Houston Hobby Airport around 23 times per week, with 4,301 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 $217 (round-trip), much lower than the average airfare cost of $378 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
Texas City
Baytown
Kemah
Webster
Rosenberg
Pearland
Freeport
League City
Lake Jackson
Stafford
Seabrook
West University Place
Missouri City
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

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
Tue 6/9
Tue 6/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston