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$55+ Cheap flights from St. Louis (STL) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HOU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Lambert-St Louis to Houston are usually found in April or May, booked 36 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from St. Louis to Houston

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Round-trip from

$187
(Southwest)

One-way from

$55
(Frontier)

Popular in

January

Cheapest in

April

Average price

$375
From Lambert-St Louis to Houston
Search Deals
One-way flight from Lambert-St Louis to Houston
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from St. Louis to Houston

Cheapest flights from St. Louis to Houston
Explore the most affordable flight options available from St. Louis to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:50 pmSTL - HOU
Nonstop2h 15mSouthwest
Mon 3/108:30 pmHOU - STL
1 stop4h 05mSouthwest
Deal found 2/20$187
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/163:40 pmSTL - IAH
1 stop7h 18mUnited Airlines
Wed 4/308:04 pmIAH - STL
Nonstop2h 05mUnited Airlines
Deal found 2/20$188
This Mytrip deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:53 pmSTL - IAH
1 stop29h 00mFrontier
Mon 5/199:00 pmIAH - STL
1 stop27h 06mFrontier
Deal found 2/19$192
This CheapOair deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/106:11 pmSTL - IAH
1 stop29h 17mMultiple Airlines
Sun 4/135:15 amIAH - STL
1 stop27h 51mMultiple Airlines
Deal found 2/20$194
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/195:37 pmSTL - IAH
1 stop6h 20mAmerican Airlines
Wed 3/265:00 amIAH - STL
1 stop5h 38mAmerican Airlines
Deal found 2/19$197
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:11 pmSTL - IAH
2 stops29h 26mSpirit Airlines
Sun 4/205:30 amIAH - STL
1 stop11h 46mSpirit Airlines
Deal found 2/20$271
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/115:27 pmSTL - HOU
1 stop5h 13mAmerican Airlines
Sun 4/136:00 amHOU - STL
1 stop4h 33mAmerican Airlines
Deal found 2/20$316
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/16:30 amSTL - IAH
1 stop7h 31mDelta
Sun 8/3110:45 amIAH - STL
1 stop6h 00mDelta
Deal found 2/19$395
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/239:00 amSTL - HOU
1 stop6h 02mDelta
Sun 7/276:00 amHOU - STL
1 stop6h 24mDelta
Deal found 2/20$477

Find flights from St. Louis to Houston within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

St. Louis

Fly to

Houston

Route

Depart

Return

Price

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 3/6

2:50 pm-5:05 pm

Nonstop2h 15m

Houston Hobby

Mon 3/10

8:30 pm-12:35 am

1 stop4h 05m

$187

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Wed 4/16

3:40 pm-10:58 pm

1 stop7h 18m

Houston George Bush Intcntl

Wed 4/30

8:04 pm-10:09 pm

Nonstop2h 05m

$188

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Fri 5/16

6:53 pm-11:53 pm

1 stop29h 00m

Houston George Bush Intcntl

Mon 5/19

9:00 pm-12:06 am

1 stop27h 06m

$192

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 4/10

6:11 pm-11:28 pm

1 stop29h 17m

Houston George Bush Intcntl

Sun 4/13

5:15 am-9:06 am

1 stop27h 51m

$194

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Wed 3/19

5:37 pm-11:57 pm

1 stop6h 20m

Houston George Bush Intcntl

Wed 3/26

5:00 am-10:38 am

1 stop5h 38m

$197

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 4/17

6:11 pm-11:37 pm

2 stops29h 26m

Houston George Bush Intcntl

Sun 4/20

5:30 am-5:16 pm

1 stop11h 46m

$271

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Fri 4/11

5:27 pm-10:40 pm

1 stop5h 13m

Houston Hobby

Sun 4/13

6:00 am-10:33 am

1 stop4h 33m

$316

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Sun 6/1

6:30 am-2:01 pm

1 stop7h 31m

Houston George Bush Intcntl

Sun 8/31

10:45 am-4:45 pm

1 stop6h 00m

$395

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 7/23

9:00 am-3:02 pm

1 stop6h 02m

Houston Hobby

Sun 7/27

6:00 am-12:24 pm

1 stop6h 24m

$477

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 5/8

4:07 pm-11:53 pm

1 stop7h 46m

$55

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 21 results
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Best time to book a flight from St. Louis to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Houston

Get recent, data-driven insights about flights from St. Louis to Houston including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Houston?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Houston. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Houston, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Houston?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Houston (average of $230). Flying from St. Louis to Houston in March is currently the most expensive (average of $334). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to HOU?

Find hourly flight availability from St. Louis to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Houston in the evening. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from St. Louis to Houston?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Houston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Houston flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated February 20, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from St. Louis to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Houston?

    For a flight from St. Louis to Houston, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 2 outbound flights to Houston per day. 4 airlines have flights to Houston from Lambert-St Louis on a regular basis.

  • What are the cheapest airlines flying from St. Louis to Houston round-trip?

    Currently priced at $187, Southwest will fly you from St. Louis to Houston and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Frontier - these airlines can fly you to your destination from $188 and $192, respectively. Southwest is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Houston one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $55. Spirit Airlines flights start at $79 while deals on Southwest start at $89 one-way.

  • What are the cheapest flights from St. Louis to Houston?

    The cheapest flight price from St. Louis to Houston is $88. On average you can expect to pay $336. The most popular route, (Lambert-St Louis - Houston Hobby), can usually be booked for $149.

  • Can I find deals for flights from St. Louis to Houston that include hotel bookings?

    Yes. In addition to deals on St. Louis to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Houston.

  • Can I find deals for business class flights from St. Louis to Houston?

    Yes. Cheapflights offers flight deals from St. Louis to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Houston?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Houston (average of $230). Flying from St. Louis to Houston in March is currently the most expensive (average of $334). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Houston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Houston

Discover the top 4 airlines that operate flights from St. Louis to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$164FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$187Average$387FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$207Average$393FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$273Average$376FlexibilityNo cancel feeOn-time63%
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