CA $232 Cheap Flights from St. Louis (STL) to Houston (HOU)

View CA $232 flight on Fri, Sep. 19, 2025Opens in a new window

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

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Cheap flights from St. Louis (STL) to Houston (HOU)

Prices were available within the past 7 days and start at CA $232 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

September is typically the cheapest month to fly

From CA $151 - CA $514 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to Houston (STL - IAH) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
George Bush Intercontinental
Roundtrip price
CA $370
Distance
1068 km
Average flight time
2 hours 4 mins

St. Louis to Houston Flights

The easy way to book your flights from St. Louis to Houston 

With Expedia, it’s simple to find and book flights to Houston from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 1 airlines that cover this route. There are Southwest Airlines nonstop flights to William P. Hobby, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Houston today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to William P. Hobby, HOU 

Sort your search results by price to find great deals on your flight from St. Louis to Houston—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Houston from St. Louis currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Houston  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Houston from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Houston with Expedia today.

Frequently asked questions

How much is a flight from Lambert Field to William P. Hobby Airport (HOU)?
The lowest price advertised for a round-trip flight from STL to William P. Hobby Airport is . But you better act soon. This price is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
When it comes to cancellation fees, every airline has its own terms and conditions. If you decide to cancel your vacation, head to our Customer Service Portal.
How do I find cheap flights from STL to William P. Hobby Airport (HOU) that have flexible change policies?
Select our "No change fees" filter to find flexible travel options for your flight from Lambert Field to William P. Hobby Airport (HOU). This allows you to secure a great price ahead of time and still have the freedom to make changes without any extra fees. Just keep in mind that fare differences may still apply.
How many hours is the flight from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport?
It takes about 2 hours and 16 minutes to journey from Lambert Field to HOU. Buckle up and make yourself comfortable — but not too comfortable. You'll be landing in Houston before long.
How far is the flight from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
Forget about a movie marathon on this flight — it's only 1,100 kilometres from St. Louis to Houston. Find your way to your seat, order some snacks and you'll be touching down in next to no time.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU)?
Flying straight from STL to William P. Hobby Airport is a breeze with Southwest Airlines (WN). This top carrier offers 104 flights each month.
Are Lambert-St. Louis Intl. Airport (STL) to HOU flight tickets cheaper when they're purchased at the last minute?
Airline tickets from Lambert-St. Louis Intl. Airport (STL) to William P. Hobby Airport (HOU) are available up to 12 months prior to departure on Expedia. And although you may pick up a fantastic last-minute deal, it's not something you should bank on. Also, booking your flights in advance means you'll have more options — and you can avoid ending up with the dreaded middle seat! We frequently update our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.

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