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 40% 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?

Spirit Airlines, Frontier, and Southwest 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?

12 flights are operational daily from St. Louis to Houston as of July 2025. The most popular departure time for this route is 6:00AM, with 64% of flights per day taking off at noon.

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

As of July 2025, there are 87 flights per week flying from St. Louis to Houston. The most common day of the week flights depart is Thu, with 26% 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 July 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.

$73 Cheap Flights from St. Louis to Houston in 2025

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Find the cheapest flights from St. Louis to Houston

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

2:30 pm - 7:43 pmSTL-IAH

5h 13m1 stop

6:10 am - 1:32 pmIAH-STL

7h 22m1 stop

$157Spirit Airlines

Find Deal

Fri, Aug 22 - Sun, Aug 24

2:30 pm - 1:58 pmSTL-IAH

23h 28m1 stop

6:10 am - 1:32 pmIAH-STL

7h 22m1 stop

$182Spirit Airlines

Find Deal

Mon, Aug 18 - Fri, Aug 22

7:54 pm - 11:36 pmSTL-IAH

27h 42m1 stop

7:30 am - 9:11 amIAH-STL

25h 41m1 stop

$205Frontier

Find Deal

Wed, Aug 27 - Tue, Sep 2

5:40 pm - 10:48 amSTL-IAH

17h 08m1 stop

10:04 pm - 9:11 amIAH-STL

11h 07m1 stop

$215Frontier

Find Deal

Tue, Aug 12 - Thu, Aug 14

7:45 am - 9:50 amSTL-HOU

2h 05mnonstop

5:35 am - 7:35 amHOU-STL

2h 00mnonstop

$217Southwest

Find Deal

Wed, Aug 27 - Wed, Sep 3

5:20 pm - 7:25 pmSTL-HOU

2h 05mnonstop

3:30 pm - 8:05 pmHOU-STL

4h 35m1 stop

$227Southwest

Find Deal

Wed, Aug 27 - Wed, Sep 3

8:20 am - 10:30 amSTL-IAH

2h 10mnonstop

7:50 am - 9:57 amIAH-STL

2h 07mnonstop

$251United Airlines

Find Deal

Fri, Sep 5 - Fri, Sep 12

9:23 am - 1:51 pmSTL-HOU

4h 28m1 stop

10:14 am - 6:30 pmHOU-STL

8h 16m1 stop

$270American Airlines

Find Deal

Wed, Aug 27 - Sat, Aug 30

5:15 am - 9:44 amSTL-HOU

4h 29m1 stop

4:20 pm - 11:03 pmHOU-STL

6h 43m1 stop

$271American Airlines

Find Deal

Thu, Aug 21 - Thu, Aug 21

8:20 am - 10:39 amSTL-IAH

2h 19mnonstop

8:00 pm - 10:08 pmIAH-STL

2h 08mnonstop

$287United Airlines

Find Deal

Wed, Aug 27 - Sat, Aug 30

American Airlines flights from St. Louis to Houston

Our best American Airlines deals on St. Louis to Houston flight tickets

American Airlines

Aug 27

STL9:23 amLambert-St Louis

4h 28m

1 stop

HOU1:51 pmHouston Hobby

Aug 30

HOU10:14 amHouston Hobby

8h 16m

1 stop

STL6:30 pmLambert-St Louis

$270

Find similar

American Airlines

Aug 21

STL5:15 amLambert-St Louis

4h 29m

1 stop

HOU9:44 amHouston Hobby

Aug 21

HOU4:20 pmHouston Hobby

6h 43m

1 stop

STL11:03 pmLambert-St Louis

$271

Find similar

American Airlines

Aug 29

STL5:15 amLambert-St Louis

4h 29m

1 stop

HOU9:44 amHouston Hobby

Sep 5

HOU6:44 pmHouston Hobby

4h 06m

1 stop

STL10:50 pmLambert-St Louis

$333

Find similar

Delta flights from St. Louis to Houston

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

Delta

Aug 26

STL7:00 amLambert-St Louis

5h 10m

1 stop

HOU12:10 pmHouston Hobby

Aug 30

HOU10:22 amHouston Hobby

5h 44m

1 stop

STL4:06 pmLambert-St Louis

$237

Find similar

Delta

Sep 5

STL3:36 pmLambert-St Louis

6h 55m

1 stop

HOU10:31 pmHouston Hobby

Sep 13

HOU6:00 amHouston Hobby

6h 21m

1 stop

STL12:21 pmLambert-St Louis

$285

Find similar

Delta

Aug 21

STL3:42 pmLambert-St Louis

6h 49m

1 stop

HOU10:31 pmHouston Hobby

Aug 22

HOU6:34 pmHouston Hobby

4h 40m

1 stop

STL11:14 pmLambert-St Louis

$302

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Fri 8/22

2:30 pm-7:43 pm

1 stop5h 13m

Houston George Bush Intcntl

Sun 8/24

6:10 am-1:32 pm

1 stop7h 22m

$157

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Mon 8/18

2:30 pm-1:58 pm

1 stop23h 28m

Houston George Bush Intcntl

Fri 8/22

6:10 am-1:32 pm

1 stop7h 22m

$182

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Wed 8/27

7:54 pm-11:36 pm

1 stop27h 42m

Houston George Bush Intcntl

Tue 9/2

7:30 am-9:11 am

1 stop25h 41m

$205

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Tue 8/12

5:40 pm-10:48 am

1 stop17h 08m

Houston George Bush Intcntl

Thu 8/14

10:04 pm-9:11 am

1 stop11h 07m

$215

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 8/27

7:45 am-9:50 am

Nonstop2h 05m

Houston Hobby

Wed 9/3

5:35 am-7:35 am

Nonstop2h 00m

$217

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 8/27

5:20 pm-7:25 pm

Nonstop2h 05m

Houston Hobby

Wed 9/3

3:30 pm-8:05 pm

1 stop4h 35m

$227

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Fri 9/5

8:20 am-10:30 am

Nonstop2h 10m

Houston George Bush Intcntl

Fri 9/12

7:50 am-9:57 am

Nonstop2h 07m

$251

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 8/27

9:23 am-1:51 pm

1 stop4h 28m

Houston Hobby

Sat 8/30

10:14 am-6:30 pm

1 stop8h 16m

$270

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 8/21

5:15 am-9:44 am

1 stop4h 29m

Houston Hobby

Thu 8/21

4:20 pm-11:03 pm

1 stop6h 43m

$271

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Wed 8/27

8:20 am-10:39 am

Nonstop2h 19m

Houston George Bush Intcntl

Sat 8/30

8:00 pm-10:08 pm

Nonstop2h 08m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 $287. The month of August is another great option to travel to Houston, with average flight prices from St. Louis averaging around $292.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $349. 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 $357. Try not to purchase tickets in the afternoon because they tend to be around $594. 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 Hobby 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 $347 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 $284 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

Best Price Found	$73
Fastest flight time	2h 00m
Direct flights	Every day
Airports in Houston	2 airports

The best one-way flight to Houston from St. Louis in the past 72 hours is $73. The best round-trip flight deal from St. Louis to Houston found on momondo in the last 72 hours is $157.

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 00m 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 July 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 $107	Free Cancellation	Rating 5.9 3,239 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $116	Free Cancellation	Rating 6.3 8,049 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $178	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $192	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $217	Free Cancellation	Rating 7.4 8,900 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.

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Cheap flights from St. Louis to Houston from $73

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 8/31. 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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American Airlines flights from St. Louis to Houston

Our best American Airlines 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 $287. The month of August is another great option to travel to Houston, with average flight prices from St. Louis averaging around $292.

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 Hobby 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?

Spirit Airlines, Frontier, and Southwest 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?

12 flights are operational daily from St. Louis to Houston as of July 2025. The most popular departure time for this route is 6:00AM, with 64% of flights per day taking off at noon.

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

As of July 2025, there are 87 flights per week flying from St. Louis to Houston. The most common day of the week flights depart is Thu, with 26% 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

Best Price Found

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