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Cheap Flights from St Louis (STL) to Houston (HOUA)

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Compare St Louis to Houston flight deals

Find the cheapest month or even day of the year to fly to Houston

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Flight deals from St Louis to Houston

Looking for a cheap last-minute deal or the best return flight from St Louis to Houston? Find the lowest prices on one-way and return tickets right here.
Houston.£116 per passenger.Departing Mon, 4 Aug, returning Mon, 4 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Mon, 4 Aug, arriving in Houston Hobby.Inbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 4 Aug, arriving in St Louis.Price includes taxes and charges.From £116, select.
Mon, 4 AugSTL - HOU with Southwest Airlines
Direct
Mon, 4 AugHOU - STL with Southwest Airlines
Direct
from £116
Houston.£116 per passenger.Departing Tue, 2 Sep, returning Wed, 3 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Tue, 2 Sep, arriving in Houston Hobby.Inbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 3 Sep, arriving in St Louis.Price includes taxes and charges.From £116, select.
Tue, 2 SepSTL - HOU with Southwest Airlines
Direct
Wed, 3 SepHOU - STL with Southwest Airlines
Direct
from £116
Houston.£131 per passenger.Departing Sat, 18 Oct, returning Mon, 20 Oct.Return flight with United.Outbound direct flight with United departs from St Louis on Sat, 18 Oct, arriving in Houston George Bush Intercntl..Inbound direct flight with United departs from Houston George Bush Intercntl. on Mon, 20 Oct, arriving in St Louis.Price includes taxes and charges.From £131, select.
United
Sat, 18 OctSTL - IAH with United
Direct
United
Mon, 20 OctIAH - STL with United
Direct
from £131
Houston.£141 per passenger.Departing Wed, 9 Jul, returning Fri, 11 Jul.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from St Louis on Wed, 9 Jul, arriving in Houston George Bush Intercntl..Inbound indirect flight with Spirit Airlines, departs from Houston George Bush Intercntl. on Fri, 11 Jul, arriving in St Louis.Price includes taxes and charges.From £141, select.
Wed, 9 JulSTL - IAH with Spirit Airlines
1 stop
Fri, 11 JulIAH - STL with Spirit Airlines
1 stop
from £141
Houston.£147 per passenger.Departing Fri, 27 Jun, returning Sun, 29 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Fri, 27 Jun, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sun, 29 Jun, arriving in St Louis.Price includes taxes and charges.From £147, select.
Fri, 27 JunSTL - IAH with Frontier Airlines
1 stop
Sun, 29 JunIAH - STL with Frontier Airlines
1 stop
from £147
Houston.£163 per passenger.Departing Mon, 28 Jul, returning Mon, 18 Aug.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from St Louis on Mon, 28 Jul, arriving in Houston George Bush Intercntl..Inbound indirect flight with Spirit Airlines, departs from Houston George Bush Intercntl. on Mon, 18 Aug, arriving in St Louis.Price includes taxes and charges.From £163, select.
Mon, 28 JulSTL - IAH with Spirit Airlines
1 stop
Mon, 18 AugIAH - STL with Spirit Airlines
1 stop
from £163
Houston.£201 per passenger.Departing Thu, 31 Jul, returning Mon, 4 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Thu, 31 Jul, arriving in Houston Hobby.Inbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 4 Aug, arriving in St Louis.Price includes taxes and charges.From £201, select.
Thu, 31 JulSTL - HOU with Southwest Airlines
Direct
Mon, 4 AugHOU - STL with Southwest Airlines
Direct
from £201
Houston.£204 per passenger.Departing Tue, 22 Jul, returning Wed, 30 Jul.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from St Louis on Tue, 22 Jul, arriving in Houston Hobby.Inbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 30 Jul, arriving in St Louis.Price includes taxes and charges.From £204, select.
Tue, 22 JulSTL - HOU with Southwest Airlines
Direct
Wed, 30 JulHOU - STL with Southwest Airlines
Direct
from £204
How did we find these deals? The deals you see here are the lowest prices for flight tickets from St Louis to Houston found in the last 4 days, and are subject to change and availability.

The cheapest month to fly from St Louis Airport to Houston

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the St Louis Airport to Houston flight prices forecast over the next 12 months.
Jun
from £147
Jul
from £141
Aug
from £116
Sep
from £116
Oct
from £131
Nov
Find prices
Dec
Find prices
Jan
from £276
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices
Cheapest month:August
Most expensive month:January

Direct flights from St Louis to Houston

Alternative St Louis to Houston routes

Looking for the cheapest, fastest or easiest route from St Louis to Houston? You could fly into the following airports instead.

St Louis to Houston: Flight information

The things to know before you go.
Cheapest flight found£116
Cheapest month to flyAugust
Average flight time2 hrs, 13 mins
Most popular airlineSouthwest Airlines
Average flights per week141

Finding cheap flights from St Louis to Houston: Frequently asked questions

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.
The best price we found for a return flight from St Louis to Houston is £116. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 13 minutes is the average flight time from St Louis to Houston.
Southwest Airlines, United and Virgin Australia fly direct from St Louis to Houston.
As of June 2025, there are 141 flights per week flying from St Louis to Houston.
The cheapest month to fly from St Louis to Houston is usually June 2025.
If you're flying from St Louis Airport, the cheapest airport near Houston is Houston Hobby – which is 9.6 miles away from the centre of Houston. We've found flights into this airport from £116.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Houston on Monday, 4 August 2025.
Yes – the average flight time is 2 hours and 13 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 28°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
Currently, Southwest Airlines offers the cheapest flight tickets to Houston.

Flying from Lambert-St. Louis International Airport (STL) to Houston: what you need to know

  • Approximately 2 hours 5 minutes is how long you'll be travelling on a direct flight from Lambert-St. Louis International Airport to Houston.

  • Houston's timezone is UTC-5, which is the same as St Louis (the location of Lambert-St. Louis International Airport).

  • The busiest route is from Lambert-St. Louis International Airport (STL) to George Bush Intercontinental Airport (IAH). You can select from 27 weekly services between these two airports. If you want to head off as soon as possible, the earliest flight from STL to IAH is the 06:15 United Airlines option. If you prefer to travel later, the last departure is at 18:00 with United Airlines.

  • For stress-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. That way, you won't have to rush to catch your STL to Houston flight.

  • Longer lines at check-in and security are more likely if you're flying during high season, so allow even more breathing space. A good general rule for peak times? Get there up to four hours ahead for international flights and at least two hours for domestic departures.

  • You can book a direct Lambert-St. Louis International Airport to Houston ticket. Start your journey at STL and end it at George Bush Intercontinental Airport (IAH).

  • Take to the skies with United Airlines. This well-known airline offers direct flights from Lambert-St. Louis International Airport to Houston.

  • Travelling from central St Louis to STL takes around 35 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 10 miles in 20 minutes or so, depending on traffic conditions.

  • Planning to catch an early flight from Lambert-St. Louis International Airport to Houston? Avoid the stress of rushing to the airport (and catch some extra z's) by choosing one of these hotels close to STL:

    • La Quinta Inn by Wyndham St. Louis Hazelwood - Airport North

    • Extended Stay America Select Suites - St Louis - Airport - Central

    • Best Western St. Louis Airport North Hotel Suites

  • 78.04% of flights that take off from Lambert-St. Louis International Airport make it to their destination on time.

  • STL is located at 10701 Lambert International Blvd..

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Houston

  • £60 is currently the lowest price for a one-way Lambert-St. Louis International Airport to Houston flight. Return plane tickets start at £116. These fares may change based on availability.

  • Book one month before you travel. Pricing trends suggest that this is the ideal window for finding cheap flights from STL to Houston.

  • The best month for picking up cheap Lambert-St. Louis International Airport to Houston tickets is May. Use the 'Whole month' tool to compare prices, then choose the dates with the lowest fares.

  • You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll update you the moment there's an even bigger deal on cheap flights from STL to Houston.

  • Choose your preferred departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Lambert-St. Louis International Airport to Houston by 'Cheapest,' 'Best' or 'Fastest.'

Airports in Houston

George Bush Intercontinental Airport (IAH)

  • George Bush Intercontinental Airport (IAH) is around 17 miles from the centre of Houston. If you're getting a cab or a ride-share, the drive takes roughly 20 minutes.

  • Getting there on public transport takes about 50 minutes.

  • Think about booking a hotel close to IAH if you have a late flight from Lambert-St. Louis International Airport to Houston. Select one of these options and skip the long transfer:

    • Ramada by Wyndham Houston Intercontinental Airport South

    • La Quinta Inn & Suites by Wyndham Houston Bush IAH South

    • DoubleTree by Hilton Houston Intercontinental Airport

  • Grab a George Bush Intercontinental Airport rental car and explore Houston and beyond with your own wheels. Dollar, Thrifty and Sixt are well-known companies you can book with here.

  • For the lowest price, reserve your ride from George Bush Intercontinental Airport about three weeks in advance of your flight from STL to Houston.

  • IAH is located at 16930 JFK Boulevard.

William P. Hobby Airport (HOU)

  • After your flight from Lambert-St. Louis International Airport to Houston has landed, you can get to the city centre in about 20 minutes by car. Central Houston is roughly 12 miles from William P. Hobby Airport (HOU).

  • If you choose to travel on public transport, the ride to the centre will take you 1 hour 40 minutes or so.

  • Hang up the 'Do not disturb' sign and relax at a hotel close to HOU. Here are a few options where you can check in after your STL to Houston flight:

    • Travelodge by Wyndham Houston Hobby Airport

    • La Quinta Inn & Suites by Wyndham Houston Hobby Airport

    • Days Inn & Suites by Wyndham Houston Hobby Airport

  • Forget about public transport timetables or waiting forever for a cab. Grab a William P. Hobby Airport rental car and take your trip in whatever direction you choose. Compare availability and rates from Easirent, Dollar and Thrifty.

  • Call dibs on the best options. Reserving your ride from HOU four weeks in advance often means better deals and a greater range of vehicles.

  • The address for William P. Hobby Airport is 7800 Airport Boulevard.

Best time to go to Houston

  • Before booking your flights from Lambert-St. Louis International Airport to Houston, consider which time of year works best for you. High season in Houston offers a lively atmosphere and plenty to do, while the low season means you'll get better hotel deals and smaller crowds.

  • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Book your Lambert-St. Louis International Airport to Houston plane ticket then if this is the type of weather you enjoy.

  • January has average temperatures of between 5ºC (41ºF) and 19ºC (66ºF). Look for a cheap ticket from STL to Houston around that time if you want to travel in cooler conditions.

More about Houston

  • Once you've booked your flight from Lambert-St. Louis International Airport to Houston, find a hotel that keeps you close to what you want to see. Make one of these options your base for exploring Houston:

    • Marriott Marquis Houston

    • DoubleTree by Hilton Hotel & Suites Houston by The Galleria

    • Hotel Zaza Houston Museum District

  • There are so many things to explore in this city it can be hard to work out where to start. The Museum of Fine Arts, Houston, Beck Building, The Houston Museum of Natural Science and Hermann Park are popular attractions which should feature on every Houston itinerary.

Explore more of United States

  • Houston will leave a lasting impression, but there are so many other corners of United States just waiting to be discovered. Around 190 miles west of Houston, a visit to San Antonio will keep you busy. Start with popular sights like The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral.

  • If you want to check out another side of United States, head for Dallas, roughly 230 miles north of Houston. Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art are among the biggest draws.

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Plan the rest of your trip from St Louis to Houston

  • Car hire in Houston
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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.

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