Check the IAH Depart tab online for current security wait times to plan your arrival at the airport efficiently.
$59+ Cheap flights from George Bush Intcntl (IAH) to St. Louis (STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — STL
Jun 17 — Jun 241
1 adult, Economy
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Find cheap flights from George Bush Intcntl to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston George Bush Intcntl to Lambert-St Louis are usually found in August or July, booked 65 days in advance, depart on a Saturday or Friday and return on a Tuesday
Cheap flight deals from George Bush Intcntl to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $169 (FlightHub) |
|---|---|
One-way from | $59 (FlightHub) |
Popular in | February |
Cheapest in | August |
Average price | $342 |
Good round-trip deal | $323 or less |
Good one-way deal | $222 or less |
Find flight deals from George Bush Intcntl to St. Louis
Cheapest flights from George Bush Intcntl to St. LouisExplore the most affordable flight options available from George Bush Intcntl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from George Bush Intcntl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:46 pmIAH - STL
1 stop11h 03mSpirit Airlines
Fri 9/58:44 amSTL - IAH
1 stop9h 06mSpirit Airlines
Deal found 6/11![Spirit Airlines logo]()
$169
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/128:41 amIAH - STL
1 stop5h 10mAmerican Airlines
Tue 8/197:23 amSTL - IAH
1 stop5h 17mAmerican Airlines
Deal found 6/12![American Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:15 pmIAH - STL
Nonstop2h 11mUnited Airlines
Mon 9/18:20 amSTL - IAH
Nonstop2h 11mUnited Airlines
Deal found 6/12![United Airlines logo]()
$178
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/44:41 pmIAH - STL
1 stop17h 34mMultiple Airlines
Thu 7/1010:47 amSTL - IAH
1 stop8h 38mMultiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$217
This Frontier deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:04 pmIAH - STL
1 stop11h 08mFrontier
Sat 6/142:52 pmSTL - IAH
1 stop8h 08mFrontier
Deal found 6/12![Frontier logo]()
$248
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:00 amIAH - STL
1 stop7h 37mDelta
Sun 8/316:00 amSTL - IAH
1 stop6h 02mDelta
Deal found 6/10![Delta logo]()
$252
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to St. Louis that are best for you.
Fly from
George Bush Intcntl
Fly to
St. Louis
Route
Depart
Return
Price
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Wed 9/3
8:46 pm-7:49 am
1 stop11h 03m
Lambert-St Louis
Fri 9/5
8:44 am-5:50 pm
1 stop9h 06m
$169
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Tue 8/12
8:41 am-1:51 pm
1 stop5h 10m
Lambert-St Louis
Tue 8/19
7:23 am-12:40 pm
1 stop5h 17m
$177
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Sat 8/23
12:15 pm-2:26 pm
Nonstop2h 11m
Lambert-St Louis
Mon 9/1
8:20 am-10:31 am
Nonstop2h 11m
$178
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Fri 7/4
4:41 pm-10:15 am
1 stop17h 34m
Lambert-St Louis
Thu 7/10
10:47 am-7:25 pm
1 stop8h 38m
$217
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Thu 8/28
7:00 am-2:37 pm
1 stop7h 37m
Lambert-St Louis
Sun 8/31
6:00 am-12:02 pm
1 stop6h 02m
$252
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Wed 7/2
2:28 pm-1:40 pm
1 stop23h 12m
Lambert-St Louis
Sat 7/5
11:00 am-5:51 pm
1 stop6h 51m
$253
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Wed 9/10
8:46 pm-7:49 am
1 stop11h 03m
$59
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Tue 8/12
4:40 pm-6:53 pm
Nonstop2h 13m
$79
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Tue 10/14
10:29 am-4:08 pm
1 stop5h 39m
$88
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Mon 8/4
5:59 pm-11:53 pm
1 stop5h 54m
$99
Showing 1-10 of 12 results
The best insider tips for Houston George Bush Intcntl Airport to St. Louis flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to St. Louis trip
Best time to book a flight from George Bush Intcntl to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Houston George Bush Intcntl Airport to St. Louis
How far ahead should I book a flight from Houston George Bush Intcntl Airport to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to St. Louis. Price data was last updated on June 9, 2025.
Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to St. Louis (average of $311). Flying from Houston George Bush Intcntl Airport to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IAH to STL?
Find hourly flight availability from George Bush Intcntl to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
When flying from Houston George Bush Intcntl Airport to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 10% versus a flight in the morning.
What is the cheapest day to fly from Houston George Bush Intcntl Airport to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to St. Louis. Price data was last updated on June 8, 2025.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to St. Louis flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Houston George Bush Intcntl Airport to St. Louis
Explore weekly flight availability from George Bush Intcntl to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.
The most flights from IAH to STL are scheduled on a Monday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
Rainfall in St. Louis by month
Plan your trip to St. Louis by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.
Temperature in St. Louis by month
Plan your trip to St. Louis by taking into account the average temperature totals by month.
If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Houston to St. Louis, such as Delta, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Entertainment
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Entertainment
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Entertainment
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Entertainment
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Entertainment
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Entertainment
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from George Bush Intcntl to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Houston George Bush Intcntl Airport?
Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locationsO'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington
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Alternative routes for George Bush Intcntl to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from George Bush Intcntl to St. Louis
Discover the top 3 airlines that operate flights from George Bush Intcntl to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$109 | Average$193 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$180 | Average$295 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$244 | Average$388 | FlexibilityNo cancel fee | On-time69% |