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

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

Prices were available within the past 7 days and start at $157 for one-way flights and $171 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Jan 13 - Fri, Jan 16
STL
St. Louis
HOU
Houston
$171 Roundtrip, found 4 days ago
$171
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jan 13 from St. Louis to Houston, returning Fri, Jan 16, priced at $171 found 4 days ago
Southwest Airlines
Mon, Jan 26 - Thu, Jan 29
STL
St. Louis
HOU
Houston
$313 Roundtrip, found 2 hours ago
$313
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Mon, Jan 26 from St. Louis to Houston, returning Thu, Jan 29, priced at $313 found 2 hours ago

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

November is typically the cheapest month to fly

From $115 - $382 per traveler.

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Average driving time to city center is 24 minutes. Flights from $443
IAH
George Bush Intercontinental
Average driving time to city center24 min
Flights from $443

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 $157 or cheap return flight from $171 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)?
January 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.

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 January. 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 $157 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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*Available to One Key members.