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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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HOU
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Lambert-St Louis to Houston are usually found in May or September, booked 36 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 January 21, 2025.

Round-trip from

$244
(Frontier)

One-way from

$55
(Cheapflightsfares)

Popular in

March

Cheapest in

May

Average price

$377
From Lambert-St Louis to Houston
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One-way flight from Lambert-St Louis to Houston
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Highest demand for flights based on searches. 3% potential increase in price ($12 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 January 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 January 21, 2025.

This CheapOair deal was found by Cheapflights users on 1/21. 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.
Sat 2/225:20 pmSTL - IAH
1 stop16h 52mFrontier
Mon 3/35:20 pmIAH - STL
1 stop6h 23mFrontier
Deal found 1/21$140
This Mytrip deal was found by Cheapflights users on 1/21. 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 2/2112:15 pmSTL - IAH
2 stops31h 17mMultiple Airlines
Thu 2/278:00 amIAH - STL
1 stop6h 42mMultiple Airlines
Deal found 1/21$236
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Sat 4/197:45 amSTL - IAH
1 stop5h 00mAmerican Airlines
Fri 4/255:00 amIAH - STL
1 stop4h 01mAmerican Airlines
Deal found 1/21$237
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Tue 2/184:30 pmSTL - IAH
Nonstop2h 16mUnited Airlines
Tue 2/251:05 pmIAH - STL
Nonstop2h 06mUnited Airlines
Deal found 1/21$247
This eDestinos deal was found by Cheapflights users on 1/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/196:43 pmSTL - HOU
2 stops38h 53mFrontier
Wed 2/2610:36 amHOU - STL
2 stops35h 32mFrontier
Deal found 1/20$252
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Sun 2/94:28 pmSTL - IAH
2 stops17h 43mSpirit Airlines
Thu 2/136:10 amIAH - STL
1 stop8h 32mSpirit Airlines
Deal found 1/21$267
This Southwest deal was found by Cheapflights users on 1/21. 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 2/275:10 amSTL - HOU
Nonstop2h 20mSouthwest
Sun 3/25:00 amHOU - STL
Nonstop1h 55mSouthwest
Deal found 1/21$276
This American Airlines deal was found by Cheapflights users on 1/21. 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 3/75:10 amSTL - HOU
1 stop4h 32mAmerican Airlines
Tue 3/256:03 amHOU - STL
1 stop4h 35mAmerican Airlines
Deal found 1/21$296
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 2/184:40 pmSTL - HOU
1 stop5h 49mDelta
Tue 2/2510:25 amHOU - STL
1 stop5h 09mDelta
Deal found 1/20$343
This Delta deal was found by Cheapflights users on 1/21. 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.
Fri 6/276:00 amSTL - IAH
1 stop6h 09mDelta
Wed 7/26:00 amIAH - STL
1 stop4h 38mDelta
Deal found 1/21$435

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Sun 2/16

11:08 pm-11:07 am

1 stop11h 59m

Houston George Bush Intcntl

Fri 2/21

10:07 pm-9:16 am

1 stop11h 09m

$244

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Tue 2/18

4:30 pm-6:46 pm

Nonstop2h 16m

Houston George Bush Intcntl

Tue 2/25

1:05 pm-3:11 pm

Nonstop2h 06m

$247

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Wed 2/19

6:43 pm-9:36 am

2 stops38h 53m

Houston Hobby

Wed 2/26

10:36 am-10:08 pm

2 stops35h 32m

$252

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Fri 2/14

5:20 pm-10:12 am

1 stop16h 52m

Houston George Bush Intcntl

Mon 2/17

8:12 pm-2:42 pm

1 stop18h 30m

$254

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Sun 2/9

4:28 pm-10:11 am

2 stops17h 43m

Houston George Bush Intcntl

Thu 2/13

6:10 am-2:42 pm

1 stop8h 32m

$267

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Thu 2/27

5:10 am-7:30 am

Nonstop2h 20m

Houston Hobby

Sun 3/2

5:00 am-6:55 am

Nonstop1h 55m

$276

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Fri 3/7

5:10 am-9:42 am

1 stop4h 32m

Houston Hobby

Tue 3/25

6:03 am-10:38 am

1 stop4h 35m

$296

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Wed 3/12

5:10 am-11:31 am

1 stop6h 21m

Houston George Bush Intcntl

Sat 3/15

5:37 pm-10:44 pm

1 stop5h 07m

$296

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Tue 2/18

4:40 pm-10:29 pm

1 stop5h 49m

Houston Hobby

Tue 2/25

10:25 am-3:34 pm

1 stop5h 09m

$343

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 6/5

10:10 am-4:04 pm

1 stop5h 54m

Houston George Bush Intcntl

Mon 6/9

1:15 pm-8:47 pm

1 stop7h 32m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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 January 17, 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 January 21, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Houston at noon. If you’re flexible enough to do this you can expect to save up to 35% 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 January 21, 2025.
See what other customers who have flown with Southwest, American 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
4,662 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Reviews

1 / 10

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
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Reviews

1 / 10

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
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Reviews

1 / 10

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
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Reviews

1 / 10

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
4,662 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Reviews

1 / 10

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

Spirit Airlines
6.3
Okay
8,116 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Reviews

1 / 10

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 3 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 $244, Frontier will fly you from St. Louis to Houston and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Spirit Airlines - these airlines can fly you to your destination from $247 and $267, respectively. Frontier is priced at 30% 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 $80 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 $162. On average you can expect to pay $376. The most popular route, (Lambert-St Louis - Houston Hobby), can usually be booked for $152.

  • 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.

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Alternative routes for St. Louis to Houston

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$168FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$189Average$384FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$207Average$383FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$304Average$376FlexibilityNo cancel feeOn-time63%
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