What airlines fly to Houston?

Southwest, United Airlines and Frontier are the top three most popular airlines that fly to Houston from St. Louis according to our data. Southwest is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Houston. Keep in mind that there are 5 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Houston?

Southwest, United Airlines, and Frontier are the most popular carriers operating from Lambert-St Louis to Houston

How many flights depart from St. Louis to Houston on average per day?

17 flights are operational daily from St. Louis to Houston as of September 2025. The most popular departure time for this route is 6:00AM, with 69% of flights per day taking off at noon.

How many flights depart from St. Louis to Houston on average per week?

As of September 2025, there are 123 flights per week flying from St. Louis to Houston. The most common day of the week flights depart is Sun, with 19% of flights taking off on this day.

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?

There are 5 operators available for flights from Lambert-St Louis Airport to Houston as of September 2025.

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.

$58 Cheap Flights from St. Louis to Houston in 2025/26

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Find the cheapest flights from St. Louis to Houston

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

11:23 am - 5:01 pmSTL-IAH

5h 38m1 stop

8:47 pm - 9:07 amIAH-STL

12h 20m1 stop

$165Frontier

Find Deal

dom., nov. 9 - jue., nov. 13

7:45 pm - 10:37 amSTL-IAH

14h 52m1 stop

8:47 pm - 9:07 amIAH-STL

12h 20m1 stop

$166Frontier

Find Deal

mié., nov. 5 - sáb., nov. 15

3:45 pm - 9:30 pmSTL-HOU

5h 45m1 stop

7:10 am - 1:30 pmHOU-STL

6h 20m1 stop

$167Southwest

Find Deal

vie., nov. 7 - dom., nov. 16

6:45 pm - 11:55 pmSTL-HOU

5h 10m1 stop

10:55 am - 5:10 pmHOU-STL

6h 15m2 stops

$172Southwest

Find Deal

jue., oct. 30 - jue., nov. 27

9:32 pm - 8:24 amSTL-IAH

10h 52m1 stop

11:39 am - 8:37 pmIAH-STL

8h 58m1 stop

$181

Find Deal

vie., oct. 3 - lun., oct. 6

7:52 pm - 10:29 amSTL-IAH

14h 37m1 stop

10:12 pm - 9:22 amIAH-STL

11h 10m2 stops

$183

Find Deal

mar., oct. 7 - mié., oct. 22

8:20 am - 10:40 amSTL-IAH

2h 20mnonstop

8:20 pm - 10:22 pmIAH-STL

2h 02mnonstop

$185United Airlines

Find Deal

lun., nov. 10 - lun., nov. 17

6:15 am - 8:44 amSTL-IAH

2h 29mnonstop

7:55 pm - 9:58 pmIAH-STL

2h 03mnonstop

$201United Airlines

Find Deal

sáb., nov. 22 - mar., dic. 2

11:42 am - 3:54 pmSTL-HOU

4h 12m1 stop

12:15 pm - 4:40 pmHOU-STL

4h 25m1 stop

$231American Airlines

Find Deal

mié., nov. 5 - mar., nov. 18

5:11 am - 9:33 amSTL-HOU

4h 22m1 stop

6:39 pm - 11:18 pmHOU-STL

4h 39m1 stop

$262American Airlines

Find Deal

vie., oct. 10 - mar., oct. 14

Southwest flights from St. Louis to Houston

Our best Southwest deals on St. Louis to Houston flight tickets

Southwest

Nov 7

STL3:45 pmLambert-St Louis

5h 45m

1 stop

HOU9:30 pmHouston Hobby

Nov 16

HOU7:10 amHouston Hobby

6h 20m

1 stop

STL1:30 pmLambert-St Louis

$167

Find similar

Southwest

Oct 30

STL6:45 pmLambert-St Louis

5h 10m

1 stop

HOU11:55 pmHouston Hobby

Nov 27

HOU10:55 amHouston Hobby

6h 15m

2 stops

STL5:10 pmLambert-St Louis

$172

Find similar

Southwest

Oct 7

STL2:50 pmLambert-St Louis

2h 05m

HOU4:55 pmHouston Hobby

Oct 22

HOU5:00 pmHouston Hobby

2h 00m

STL7:00 pmLambert-St Louis

$206

Find similar

Delta flights from St. Louis to Houston

Our best Delta deals on St. Louis to Houston flight tickets

Delta

Nov 6

STL6:00 amLambert-St Louis

7h 27m

1 stop

HOU1:27 pmHouston Hobby

Nov 11

HOU2:32 pmHouston Hobby

7h 26m

1 stop

STL9:58 pmLambert-St Louis

$197

Find similar

Delta

Nov 9

STL7:02 pmLambert-St Louis

4h 44m

1 stop

HOU11:46 pmHouston Hobby

Nov 19

HOU6:00 amHouston Hobby

4h 49m

1 stop

STL10:49 amLambert-St Louis

$306

Find similar

Delta

Oct 9

STL6:00 amLambert-St Louis

7h 27m

1 stop

HOU1:27 pmHouston Hobby

Oct 15

HOU6:00 amHouston Hobby

4h 26m

1 stop

STL10:26 amLambert-St Louis

$308

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

dom. 11/9

11:23 am-5:01 pm

1 stop5h 38m

Houston George Bush Intcntl

jue. 11/13

8:47 pm-9:07 am

1 stop12h 20m

$165

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

mié. 11/5

7:45 pm-10:37 am

1 stop14h 52m

Houston George Bush Intcntl

sáb. 11/15

8:47 pm-9:07 am

1 stop12h 20m

$166

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

vie. 11/7

3:45 pm-9:30 pm

1 stop5h 45m

Houston Hobby

dom. 11/16

7:10 am-1:30 pm

1 stop6h 20m

$167

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

jue. 10/30

6:45 pm-11:55 pm

1 stop5h 10m

Houston Hobby

jue. 11/27

10:55 am-5:10 pm

2 stops6h 15m

$172

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

vie. 10/3

9:32 pm-8:24 am

1 stop10h 52m

Houston George Bush Intcntl

lun. 10/6

11:39 am-8:37 pm

1 stop8h 58m

$181

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

mar. 10/7

7:52 pm-10:29 am

1 stop14h 37m

Houston George Bush Intcntl

mié. 10/22

10:12 pm-9:22 am

2 stops11h 10m

$183

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

lun. 11/10

8:20 am-10:40 am

Nonstop2h 20m

Houston George Bush Intcntl

lun. 11/17

8:20 pm-10:22 pm

Nonstop2h 02m

$185

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

sáb. 11/22

6:15 am-8:44 am

Nonstop2h 29m

Houston George Bush Intcntl

mar. 12/2

7:55 pm-9:58 pm

Nonstop2h 03m

$201

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

mié. 11/5

11:42 am-3:54 pm

1 stop4h 12m

Houston Hobby

mar. 11/18

12:15 pm-4:40 pm

1 stop4h 25m

$231

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

vie. 10/10

5:11 am-9:33 am

1 stop4h 22m

Houston Hobby

mar. 10/14

6:39 pm-11:18 pm

1 stop4h 39m

$262

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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

Prices

Airlines

Other information

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 $266. The month of August is another great option to travel to Houston, with average flight prices from St. Louis averaging around $287.

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 Monday. momondo users have found tickets for Monday departures for as low as $353. 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 $494.

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 $365. Try not to purchase tickets in the afternoon because they tend to be around $617. 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 George Bush Intcntl for the best Lambert-St Louis - Houston flight prices

How far in advance should I book a flight 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 $342 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 $230 on momondo.

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

There are 4 cabin classes available to choose from on Lambert-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 near Houston: Houston George Bush Intcntl (IAH), Houston Hobby (HOU)

Search flight deals

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 05m 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?
There are 5 operators available for flights from Lambert-St Louis Airport to Houston as of September 2025.
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
Frontier	PriceFrom $112	Free Cancellation	Rating 5.8 3,172 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $127	Free Cancellation	Rating 6.3 8,015 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $183	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $201	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines 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.

An easier way to manage your Houston trip

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Cheap flights from St. Louis to Houston from $58

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 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Southwest flights from St. Louis to Houston

Our best Southwest deals on St. Louis to Houston flight tickets

Delta flights from St. Louis to Houston

Our best Delta deals on St. Louis to Houston flight tickets

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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 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 $266. The month of August is another great option to travel to Houston, with average flight prices from St. Louis averaging around $287.

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

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

What is the cheapest Lambert-St Louis to Houston flight route?

Fly from Lambert-St Louis to Houston George Bush Intcntl for the best Lambert-St Louis - Houston flight prices

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

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

There are 4 cabin classes available to choose from on Lambert-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.

What is the cheapest airline that flies from Lambert-St Louis to Houston?

Southwest, United Airlines, and Frontier are the most popular carriers operating from Lambert-St Louis to Houston

What airlines fly to Houston?

How many flights depart from St. Louis to Houston on average per day?

17 flights are operational daily from St. Louis to Houston as of September 2025. The most popular departure time for this route is 6:00AM, with 69% of flights per day taking off at noon.

How many flights depart from St. Louis to Houston on average per week?

As of September 2025, there are 123 flights per week flying from St. Louis to Houston. The most common day of the week flights depart is Sun, with 19% of flights taking off on this day.

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

Direct flights

Airports in Houston

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

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

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?

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

Best airlines flying from St. Louis to Houston

Compare and see reviews for airlines that fly from St. Louis to Houston with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Houston 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Texas