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St. Louis

$157+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — STL
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Houston Hobby to Lambert-St Louis are usually found in September or April, booked 87 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 December 15, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:09 pmHOU - STL
1 stop7h 13mAmerican Airlines
Tue 1/67:15 amSTL - HOU
1 stop4h 54mAmerican Airlines
Deal found 12/14$362
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Thu 12/2512:09 pmHOU - STL
1 stop7h 13mAmerican Airlines
Thu 1/111:41 amSTL - HOU
1 stop4h 06mAmerican Airlines
Deal found 12/12$437
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/245:40 amHOU - STL
1 stop11h 27mAmerican Airlines
Sat 1/1011:55 amSTL - HOU
1 stop6h 11mAmerican Airlines
Deal found 12/15$449
This Southwest deal was found by Cheapflights users on 12/13. 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.
Sun 12/285:00 amHOU - STL
Nonstop2h 00mSouthwest
Wed 12/315:00 pmSTL - HOU
Nonstop2h 15mSouthwest
Deal found 12/13$463
This Southwest deal was found by Cheapflights users on 12/15. 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.
Sun 12/287:35 amHOU - STL
Nonstop2h 00mSouthwest
Sun 12/286:00 pmSTL - HOU
1 stop3h 40mSouthwest
Deal found 12/15$469
This Southwest deal was found by Cheapflights users on 12/14. 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 12/3111:30 amHOU - STL
2 stops5h 50mSouthwest
Fri 1/29:55 amSTL - HOU
2 stops5h 20mSouthwest
Deal found 12/14$493
This Southwest deal was found by Cheapflights users on 12/15. 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.
Tue 12/237:35 amHOU - STL
Nonstop2h 00mSouthwest
Sat 1/106:55 amSTL - HOU
Nonstop2h 20mSouthwest
Deal found 12/15$532

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$313
(Southwest)

One-way from

$157
(Southwest)

Popular in

November

Cheapest in

September

Average price

$395

Good round-trip deal

$324 or less

Good one-way deal

$169 or less
Provider with most accurate pricing for Houston Hobby-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston Hobby-Lambert-St Louis flights.
Search Deals
From Houston Hobby to Lambert-St Louis
Search Deals
One-way flight from Houston Hobby to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Houston Hobby to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Houston Hobby to Lambert-St Louis.
Search Deals

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 December 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

Sat 1/17

6:10 am-8:05 am

Nonstop1h 55m

Lambert-St Louis

Mon 1/19

8:50 pm-11:05 pm

Nonstop2h 15m

$313

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Wed 1/7

12:55 pm-5:10 pm

1 stop4h 15m

Lambert-St Louis

Sat 1/10

6:55 am-9:15 am

Nonstop2h 20m

$319

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Sat 1/10

8:35 am-2:50 pm

1 stop6h 15m

Lambert-St Louis

Sat 1/17

6:55 am-9:15 am

Nonstop2h 20m

$323

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Tue 1/27

5:45 am-11:54 am

1 stop6h 09m

Lambert-St Louis

Tue 2/3

9:59 am-4:10 pm

1 stop6h 11m

$333

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Sat 1/17

6:00 am-11:03 am

1 stop5h 03m

Lambert-St Louis

Mon 1/19

5:04 pm-10:46 pm

1 stop5h 42m

$333

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Tue 2/10

5:45 am-11:54 am

1 stop6h 09m

Lambert-St Louis

Tue 2/10

5:04 pm-10:33 pm

1 stop5h 29m

$333

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Wed 1/14

6:35 pm-8:35 pm

Nonstop2h 00m

Lambert-St Louis

Wed 1/21

11:55 am-2:20 pm

Nonstop2h 25m

$345

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Sat 2/28

7:50 pm-9:50 pm

Nonstop2h 00m

$157

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Wed 3/4

6:35 pm-8:35 pm

Nonstop2h 00m

$157

HoustonSt. Louis

HOU - STL

HOUSTL

Houston Hobby

Wed 1/21

6:35 pm-8:35 pm

Nonstop2h 00m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 18 results
1
2

Compare providers for flights from Hobby to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hobby to St. Louis in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston Hobby Airport-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Houston Hobby Airport-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Houston Hobby Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston Hobby Airport-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston Hobby Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 12, 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, October is the cheapest month in which you can book a flight from Houston Hobby Airport to St. Louis (average of $133). Flying from Houston Hobby Airport to St. Louis in November is currently the most expensive (average of $242). 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 December 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 evening tend to be the most expensive. A flight at noon could potentially save you up to 9% 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 December 13, 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.

The best insider tips for Houston Hobby Airport to St. Louis flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
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

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 December 15, 2025.
Read through reviews of airlines operating flights from Houston Hobby Airport to St. Louis, such as Southwest, United Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

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
7.9
Good
4,249 reviews
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

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
9,092 reviews
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

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
3,081 reviews
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

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 2 inbound flights from Houston Hobby per day. You should also have plenty of airline options to choose from since 3 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.

  • How long is the flight from Houston Hobby Airport to St. Louis?

    Departing from Houston Hobby Airport to St. Louis will take you 1h 55m. Airlines will cover a distance of 688 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $144, 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 United Airlines and Southwest - these airlines can fly you to your destination from $149 and $198, respectively. These flights start at 58% 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 Frontier, which is currently one of the cheapest options available, starting at $80. Southwest flights start at $88 while deals on United Airlines start at $88 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 $139. While the most popular route (Houston Hobby - Lambert-St Louis) can be booked for $130 on average, our data indicates $313 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, October is the cheapest month in which you can book a flight from Houston Hobby Airport to St. Louis (average of $133). Flying from Houston Hobby Airport to St. Louis in November is currently the most expensive (average of $242). 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Hobby to St. Louis

Discover the top 3 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$234FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$149Average$383FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$199Average$369FlexibilityNo cancel feeOn-time63%

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