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St. Louis

$95+ Cheap flights from Hobby (HOU) to St. Louis (STL)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — STL
Aug 20 — Aug 271
Wed 8/20
Wed 8/27
1 adult, Economy
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Cheapflights Tip: The best prices from Houston Hobby to Lambert-St Louis are usually found in April or August, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Hobby to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Hobby (HOU) to St. Louis (STL). 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 August 15, 2025.

Round-trip from

$189
(Southwest)

One-way from

$95
(Southwest)

Popular in

January

Cheapest in

April

Average price

$293

Good round-trip deal

$217 or less

Good one-way deal

$124 or less
From Houston Hobby to Lambert-St Louis
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One-way flight from Houston Hobby to Lambert-St Louis
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Highest demand for flights based on searches. 10% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Houston Hobby to Lambert-St Louis.
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Price to beat on a one-way flight from Houston Hobby to Lambert-St Louis.
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Find flight deals from Hobby to St. Louis

Cheapest flights from Hobby to St. Louis
Explore the most affordable flight options available from Hobby to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2025.

This Southwest deal was found by Cheapflights users on 8/14. 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.
Sat 9/63:00 pmHOU - STL
Nonstop2h 05mSouthwest
Tue 9/95:20 pmSTL - HOU
Nonstop2h 05mSouthwest
Deal found 8/14$203
This Delta deal was found by Cheapflights users on 8/14. 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 9/301:13 pmHOU - STL
1 stop5h 52mDelta
Wed 10/111:04 amSTL - HOU
1 stop6h 36mDelta
Deal found 8/14$209
This Southwest deal was found by Cheapflights users on 8/14. 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.
Sat 9/67:40 amHOU - STL
Nonstop2h 00mSouthwest
Mon 9/812:35 pmSTL - HOU
Nonstop2h 00mSouthwest
Deal found 8/14$217
This Southwest deal was found by Cheapflights users on 8/14. 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.
Wed 9/35:50 pmHOU - STL
Nonstop2h 00mSouthwest
Fri 9/56:55 pmSTL - HOU
Nonstop2h 00mSouthwest
Deal found 8/14$220
This Delta deal was found by Cheapflights users on 8/14. 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 10/76:00 amHOU - STL
1 stop4h 26mDelta
Wed 10/159:10 amSTL - HOU
1 stop4h 17mDelta
Deal found 8/14$223
This Southwest deal was found by Cheapflights users on 8/14. 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.
Mon 9/85:55 pmHOU - STL
Nonstop2h 00mSouthwest
Wed 9/1010:30 amSTL - HOU
2 stops5h 15mSouthwest
Deal found 8/14$232
This Southwest deal was found by Cheapflights users on 8/14. 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 10/27:55 amHOU - STL
Nonstop1h 55mSouthwest
Sun 10/510:40 pmSTL - HOU
Nonstop2h 00mSouthwest
Deal found 8/14$234
This Delta deal was found by Cheapflights users on 8/14. 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.
Mon 10/136:44 pmHOU - STL
1 stop4h 57mDelta
Wed 10/159:10 amSTL - HOU
1 stop4h 17mDelta
Deal found 8/14$237
This Delta deal was found by Cheapflights users on 8/14. 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 9/39:57 amHOU - STL
1 stop4h 40mDelta
Fri 9/55:11 pmSTL - HOU
1 stop5h 20mDelta
Deal found 8/14$240

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hobby to St. Louis 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 August 15, 2025.
Use the filters below to find and compare flights from Houston Hobby Airport to St. Louis that are best for you.

Fly from

Hobby

Fly to

St. Louis

Route

Depart

Return

Price

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Thu 10/30

5:05 am-7:00 am

Nonstop1h 55m

Lambert-St Louis

Tue 11/4

5:00 pm-7:15 pm

Nonstop2h 15m

$203

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Wed 9/17

5:35 am-7:35 am

Nonstop2h 00m

Lambert-St Louis

Sat 9/20

7:00 am-9:05 am

Nonstop2h 05m

$203

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Mon 9/8

5:55 pm-7:55 pm

Nonstop2h 00m

Lambert-St Louis

Wed 9/10

5:20 pm-7:25 pm

Nonstop2h 05m

$203

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Tue 10/7

8:00 am-9:55 am

Nonstop1h 55m

Lambert-St Louis

Sat 10/11

5:55 pm-8:00 pm

Nonstop2h 05m

$203

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Thu 10/23

5:05 am-7:00 am

Nonstop1h 55m

Lambert-St Louis

Tue 11/4

8:15 pm-10:25 pm

Nonstop2h 10m

$203

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Sat 9/6

3:00 pm-5:05 pm

Nonstop2h 05m

Lambert-St Louis

Tue 9/9

5:20 pm-7:25 pm

Nonstop2h 05m

$203

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Tue 9/30

1:13 pm-7:05 pm

1 stop5h 52m

Lambert-St Louis

Wed 10/1

11:04 am-5:40 pm

1 stop6h 36m

$209

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Wed 10/8

10:13 am-2:43 pm

1 stop4h 30m

Lambert-St Louis

Tue 10/14

3:59 pm-11:00 pm

1 stop7h 01m

$209

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Tue 10/7

10:13 am-3:55 pm

1 stop5h 42m

Lambert-St Louis

Tue 10/14

3:59 pm-11:00 pm

1 stop7h 01m

$209

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Tue 9/30

2:00 pm-4:00 pm

Nonstop2h 00m

$95

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 18 results
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The best insider tips for Houston Hobby Airport to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston Hobby Airport to St. Louis trip
Airports
HOU

HOU's compact terminal allows travelers to arrive closer to their flight’s departure time, making it convenient for quick check-ins.

Read more about HOUby Scott Laird
STL

Use the MetroLink light rail for an economical and direct connection from STL to downtown St. Louis, ideal for travelers with minimal luggage.

Read more about STLby Taryn White
Our travel experts
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more
Scott Laird

Scott Laird

Expert on HOU

Scott Laird

Scott Laird

Originally from Anchorage, Alaska, Scott is a frequent contributor to Fodor’s Travel Guide, Conde Nast Traveler, TravelAge West, and TravelPulse. He holds a Bachelor of Science in Organizational Management from Alaska Pacific University and a Master of Science in Airline Management from Embry-Riddle Aeronautical University, and has worked in the airline and hotel industries and as a travel consultant.

Read more

Best time to book a flight from Hobby to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Hobby 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.

Cheapflights Insights

Everything you need to know about your flight from Houston Hobby Airport to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Hobby to St. Louis. Price data was last updated on August 8, 2025.

The best time to book flights from Houston Hobby Airport to St. Louis is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Houston Hobby Airport to St. Louis (average of $311). Flying from Houston Hobby Airport to St. Louis in March is currently the most expensive (average of $356). 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 HOU to STL?

Find hourly flight availability from Hobby to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 15, 2025.

One of the essential ways to save on airfare from Houston Hobby Airport to St. Louis is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Hobby to St. Louis. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Houston Hobby Airport to St. Louis flight should consider departing on Tuesday afternoons 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated August 15, 2025.
Read through reviews of airlines operating flights from Houston Hobby Airport to St. Louis, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
5.8
Fair
3,211 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Hobby to St. Louis. 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 into for flights to St. Louis from Houston Hobby?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Houston Hobby to St. Louis. You should not have trouble finding flights to Lambert-St Louis from Houston Hobby; the airport handles an average of 4 inbound flights from Houston Hobby per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the St. Louis airport from Houston Hobby. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

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

    Currently priced at $106, Frontier will fly you from Houston Hobby Airport to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $196 and $211, respectively. These flights start at 69% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $95. Delta flights start at $105 while deals on American Airlines start at $106 one-way.

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

    Looking at all options, your cheapest flight can be booked for $89. While the most popular route (Houston Hobby - Lambert-St Louis) can be booked for $186 on average our data indicates $220 when flying from Houston Hobby Airport to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hobby to St. Louis 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 Houston Hobby Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Houston Hobby Airport to St. Louis (average of $311). Flying from Houston Hobby Airport to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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Top 4 airlines flying from Hobby to St. Louis

Discover the top 4 airlines that operate flights from Hobby to St. Louis. 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 August 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$234FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$196Average$332FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$211Average$405FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$215Average$367FlexibilityNo cancel feeOn-time63%

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