$94 Cheap Flights from St. Louis (STL) to Houston (HOU)

View $94 flight on Fri, Jan 16, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Houston William Hobby Airport (HOU)

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Cheap Flights from St. Louis to Houston (STL-HOU)

Prices were available within the past 7 days and start at $94 for one-way flights and $149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Mon, Nov 10 - Fri, Nov 14
STL
St. Louis
HOU
Houston
$149 Roundtrip, found 5 days ago
$149
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Mon, Nov 10 from St. Louis to Houston, returning Fri, Nov 14, priced at $149 found 5 days ago
Southwest Airlines
Tue, Dec 16 - Sun, Dec 21
STL
St. Louis
HOU
Houston
$161 Roundtrip, found 1 day ago
$161
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Dec 16 from St. Louis to Houston, returning Sun, Dec 21, priced at $161 found 1 day ago
American Airlines
Sat, Oct 25 - Mon, Oct 27
STL
St. Louis
HOU
Houston
$164 Roundtrip, found 2 days ago
$164
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 25 from St. Louis to Houston, returning Mon, Oct 27, priced at $164 found 2 days ago
Southwest Airlines
Fri, Jan 16 - Mon, Jan 19
STL
St. Louis
HOU
Houston
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Jan 16 from St. Louis to Houston, returning Mon, Jan 19, priced at $177 found 1 day ago
Southwest Airlines
Sun, Oct 26 - Wed, Oct 29
STL
St. Louis
HOU
Houston
$180 Roundtrip, found 4 days ago
$180
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sun, Oct 26 from St. Louis to Houston, returning Wed, Oct 29, priced at $180 found 4 days ago
Delta
Thu, Oct 23 - Mon, Oct 27
STL
St. Louis
HOU
Houston
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Oct 23 from St. Louis to Houston, returning Mon, Oct 27, priced at $184 found 1 day ago
Southwest Airlines
Wed, Dec 3 - Wed, Dec 10
STL
St. Louis
HOU
Houston
$225 Roundtrip, found 16 hours ago
$225
Roundtrip
found 16 hours ago
Select Southwest Airlines flight, departing Wed, Dec 3 from St. Louis to Houston, returning Wed, Dec 10, priced at $225 found 16 hours ago
Southwest Airlines
Mon, Dec 22 - Tue, Dec 30
STL
St. Louis
HOU
Houston
$233 Roundtrip, found 18 hours ago
$233
Roundtrip
found 18 hours ago
Select Southwest Airlines flight, departing Mon, Dec 22 from St. Louis to Houston, returning Tue, Dec 30, priced at $233 found 18 hours ago
Southwest Airlines
Sat, Oct 25 - Tue, Oct 28
STL
St. Louis
HOU
Houston
$234 Roundtrip, found 13 hours ago
$234
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Sat, Oct 25 from St. Louis to Houston, returning Tue, Oct 28, priced at $234 found 13 hours ago

Find the cheapest month to fly from St. Louis (STL) to Houston (HOU)

November is typically the cheapest month to fly

From $116 - $385 per traveler.

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU) cost?
Lock in a cheap one-way flight from $94 or cheap return flight from $149 from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
November is the cheapest month to fly from STL to HOU. Planning your trip for the off-season is often the key to scoring lower fares.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
When departing from Lambert-St. Louis Intl. Airport (STL), you can catch a nonstop flight to William P. Hobby Airport (HOU) with Southwest Airlines.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
To find the cheapest airline flying from STL to HOU, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
Every day, an average of 3 nonstop flights operate from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU). Choose the departure date that best suits your plans.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
The 6 AM departures from STL to HOU are typically the busiest. They can also be more expensive. If you're hoping to save money, choose a less crowded time to fly.
What day of the week has the most flights from STL to HOU?
Travel on a Friday if you're after the best choice of flights from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
Lambert-St. Louis Intl. Airport (STL)'s earliest flight to William P. Hobby Airport (HOU) takes off at approximately 6:40AM UTC-6. With a travel time of 2h 20m, you'll touch down at around 9:00AM UTC-6.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
It takes around 2 hours and 16 minutes to travel the 690 mi from STL to HOU.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
To arrive at William P. Hobby Airport (HOU) without delays, opt for a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from Lambert-St. Louis Intl. Airport (STL)?
If you're departing on a direct flight from Lambert-St. Louis Intl. Airport (STL) to Houston, you'll touch down at either George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU).
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU) last-minute?
Booking your plane ticket from STL to HOU shortly before your getaway is typically more expensive. But if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a STL to HOU flight and hotel package?
You'll typically save money by securing a STL to HOU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After selecting your ideal accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
If you booked your STL to HOU flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
William P. Hobby
Airlines serving
American Airlines, Delta, Southwest Airlines
Roundtrip price
$149
Distance
687 mi
Average flight time
2 hours 43 mins

Book with confidence

Book with confidence

St. Louis to Houston Flights

The cheapest times to fly from St. Louis to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Houston are during the month of November. You can find some of the cheapest flights from St. Louis to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Houston

Sunday is one of the best days to book for cheap flights from St. Louis to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $94 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Houston Flights

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