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Cheap flights from St. Louis to Houston from $60

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 1/17. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:39 pm - 3:13 pm
STL
-
IAH
19h 34m1 stop
Multiple Airlines Logo
4:35 pm - 6:51 am
IAH
-
STL
14h 16m2 stops
$167Multiple Airlines
Fri, Jan 23 - Tue, Jan 27
Multiple Airlines Logo
3:46 pm - 11:39 pm
STL
-
IAH
7h 53m1 stop
Multiple Airlines Logo
4:35 pm - 6:51 am
IAH
-
STL
14h 16m2 stops
$168Multiple Airlines
Sat, Jan 31 - Sun, Feb 8
Frontier Logo
5:42 pm - 9:00 am
STL
-
IAH
15h 18m1 stop
Frontier Logo
6:45 am - 12:50 pm
IAH
-
STL
6h 05m1 stop
$169Frontier
Thu, Jan 22 - Mon, Jan 26
Frontier Logo
11:00 am - 10:46 pm
STL
-
IAH
11h 46m2 stops
Frontier Logo
6:05 pm - 6:51 am
IAH
-
STL
12h 46m1 stop
$174Frontier
Sat, Jan 24 - Sun, Jan 25
Multiple Airlines Logo
3:43 pm - 8:27 am
STL
-
IAH
16h 44m2 stops
Multiple Airlines Logo
12:16 pm - 10:33 pm
IAH
-
STL
10h 17m1 stop
$176Multiple Airlines
Thu, Jan 8 - Sat, Jan 10
Frontier Logo
3:43 pm - 10:31 pm
STL
-
IAH
6h 48m1 stop
Frontier Logo
9:38 pm - 6:51 am
IAH
-
STL
33h 13m2 stops
$180Frontier
Thu, Jan 8 - Mon, Jan 12
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 flights from St. Louis to Houston

Our best Southwest deals on St. Louis to Houston 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

Our best American Airlines deals on St. Louis to Houston 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 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 that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Fri 1/23

7:39 pm-3:13 pm

1 stop19h 34m

Houston George Bush Intcntl

Tue 1/27

4:35 pm-6:51 am

2 stops14h 16m

$167

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Sat 1/31

3:46 pm-11:39 pm

1 stop7h 53m

Houston George Bush Intcntl

Sun 2/8

4:35 pm-6:51 am

2 stops14h 16m

$168

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 1/22

5:42 pm-9:00 am

1 stop15h 18m

Houston George Bush Intcntl

Mon 1/26

6:45 am-12:50 pm

1 stop6h 05m

$169

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Sat 1/24

11:00 am-10:46 pm

2 stops11h 46m

Houston George Bush Intcntl

Sun 1/25

6:05 pm-6:51 am

1 stop12h 46m

$174

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 1/8

3:43 pm-8:27 am

2 stops16h 44m

Houston George Bush Intcntl

Sat 1/10

12:16 pm-10:33 pm

1 stop10h 17m

$176

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 1/8

3:43 pm-10:31 pm

1 stop6h 48m

Houston George Bush Intcntl

Mon 1/12

9:38 pm-6:51 am

2 stops33h 13m

$180

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

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

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 $251. 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 $339. 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 $497.

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 $362. 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 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 $337 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 $244 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 15m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from St. Louis to Houston takes 2h 15m
Direct flights go from St. Louis to Houston every day.
There are 2 airports in Houston. From St. Louis there are direct flights to 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 15m 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?

  • 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
Spirit AirlinesPriceFrom $127Free CancellationRating
6.3
8,190 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $136Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
FrontierPriceFrom $138Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
American AirlinesPriceFrom $167Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
SouthwestPriceFrom $177Free CancellationRating
7.9
4,250 reviews
Search Southwest 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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