$82 Cheap Flights from St. Louis (STL) to Houston (IAH)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)

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

Prices were available within the past 7 days and start at $82 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
American Airlines
United
Delta

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

November is typically the cheapest month to fly

From $115 - $308 per traveler.

Alternative airports near Houston

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

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH) cost?
Grab a cheap one-way flight from $82 or cheap return flight from $154 from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
Traveling in October is a great way to save, as it's the cheapest month for flights between STL and IAH. You'll typically find the lowest fares during the off-season.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
You can travel nonstop from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH) on a United Airlines flight.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
To find the cheapest airline flying from STL to IAH, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and flight duration. 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 George Bush Intercontinental Airport (IAH)?
Each day on average, 2 direct flights take off from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH). Choose the departure that best suits your plans.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
The 6 AM departures from STL to IAH see the highest demand. They can also be more expensive. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from STL to IAH?
If you travel on a Friday, you'll get the biggest range of choices for flights from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
The earliest flight taking off from Lambert-St. Louis Intl. Airport (STL) is at around 6:15AM UTC-6. Catch this flight and you'll land at George Bush Intercontinental Airport (IAH) at approximately 8:40AM UTC-6. The total travel time is 2h 25m.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
The average flight time from STL to IAH is 2 hours and 23 minutes, covering a distance of 670 mi.
What airline has the least delays from STL to IAH?
Consider traveling with United Airlines if you'd like to go straight from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH) without any interruptions. This carrier has the best track record for punctuality, with an on-time score of 82%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH) route, fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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)?
Catch a direct flight from Lambert-St. Louis Intl. Airport (STL) to Houston and land at George Bush Intercontinental Airport (IAH). Another convenient arrival point to this city is William P. Hobby Airport (HOU).
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH) last-minute?
Holding off until just before your trip to book a ticket from STL to IAH often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Keep your travel plans flexible to boost your chances of getting a bargain.
Is it cheaper to book a STL to IAH flight and hotel package?
You'll generally save money by booking a STL to IAH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to George Bush Intercontinental Airport (IAH)?
In most instances, you're able to cancel or reschedule your STL to IAH flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like more information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
George Bush Intercontinental
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$154
Distance
667 mi
Average flight time
2 hours 14 mins

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