$42+ Cheap flights from George Bush Intcntl (IAH) to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — STL
Oct 13 — Oct 201
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from George Bush Intcntl to St. Louis
Cheapest
Best
Last-minute
One-way
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 September 13, 2026.
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 September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:12 pm -
1 stop20h 28m
Wed 10/216:35 pm -
1 stop16h 47m
Deal found 9/10![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 pm -
1 stop16h 06m
Wed 10/72:29 pm -
1 stop8h 01m
Deal found 9/10![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:05 am -
1 stop11h 35m
Wed 12/92:59 pm -
1 stop9h 16m
Deal found 9/13![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 pm -
1 stop16h 06m
Fri 10/96:35 pm -
1 stop17h 22m
Deal found 9/10![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:12 pm -
1 stop20h 28m
Fri 10/166:35 pm -
1 stop12h 44m
Deal found 9/11![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 pm -
1 stop16h 06m
Mon 10/52:29 pm -
1 stop16h 48m
Deal found 9/9![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:08 am -
1 stop7h 02m
Fri 10/96:35 pm -
1 stop17h 22m
Deal found 9/10![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:12 pm -
1 stop20h 28m
Wed 10/216:35 pm -
1 stop16h 47m
Deal found 9/10![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:05 am -
1 stop11h 35m
Wed 10/216:35 pm -
1 stop12h 44m
Deal found 9/9![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:07 pm -
1 stop5h 33m
Wed 10/286:44 pm -
1 stop27h 20m
Deal found 9/8![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:12 pm -
1 stop20h 28m
Mon 11/26:44 pm -
1 stop12h 39m
Deal found 9/9![Frontier logo]()
$129
Best flights from George Bush Intcntl to St. LouisDiscover carefully curated flight deals from George Bush Intcntl to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from George Bush Intcntl to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/18:00 am -
Nonstop2h 10m
Mon 10/58:35 am -
Nonstop2h 17m
Deal found 9/9![United Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 9/8. 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 10/155:29 am -
1 stop5h 22m
Tue 10/2010:14 am -
1 stop7h 09m
Deal found 9/8![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/248:15 pm -
Nonstop2h 15m
Wed 10/143:12 pm -
Nonstop2h 13m
Deal found 9/9![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:15 pm -
Nonstop2h 15m
Tue 10/138:35 am -
Nonstop2h 17m
Deal found 9/11![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:05 pm -
Nonstop2h 11m
Sun 10/116:00 am -
1 stop5h 41m
Deal found 9/11![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:05 pm -
Nonstop2h 11m
Thu 10/13:12 pm -
Nonstop2h 13m
Deal found 9/10![United Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 12/188:23 pm -
Nonstop2h 07m
Mon 12/215:59 pm -
Nonstop2h 27m
Deal found 9/8![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 10/145:00 am -
1 stop7h 13m
Wed 10/216:15 am -
Nonstop2h 12m
Deal found 9/8![United Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/106:05 pm -
Nonstop2h 11m
Wed 10/146:00 am -
1 stop5h 41m
Deal found 9/8![United Airlines logo]()
$431
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/58:20 pm -
Nonstop2h 06m
Mon 11/93:15 pm -
1 stop5h 15m
Deal found 9/8![United Airlines logo]()
$431
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:15 pm -
Nonstop2h 15m
Sun 10/116:15 am -
Nonstop2h 12m
Deal found 9/10![United Airlines logo]()
$440
Last-minute flights from George Bush Intcntl to St. LouisDiscover last-minute flight deals from George Bush Intcntl to St. Louis. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to St. Louis. Data last updated September 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 pm -
1 stop16h 06m
Wed 10/72:29 pm -
1 stop8h 01m
Deal found 9/10![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 pm -
1 stop16h 06m
Fri 10/96:35 pm -
1 stop17h 22m
Deal found 9/10![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 pm -
1 stop16h 06m
Mon 10/52:29 pm -
1 stop16h 48m
Deal found 9/9![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:08 am -
1 stop7h 02m
Fri 10/96:35 pm -
1 stop17h 22m
Deal found 9/10![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:12 pm -
1 stop20h 28m
Wed 10/216:35 pm -
1 stop16h 47m
Deal found 9/10![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:12 pm -
1 stop20h 28m
Fri 10/166:35 pm -
1 stop12h 44m
Deal found 9/11![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:05 am -
1 stop11h 35m
Wed 10/216:35 pm -
1 stop12h 44m
Deal found 9/9![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:12 pm -
1 stop20h 28m
Wed 10/216:35 pm -
1 stop16h 47m
Deal found 9/10![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:05 am -
1 stop11h 35m
Wed 10/216:35 pm -
1 stop16h 47m
Deal found 9/9![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:07 pm -
1 stop5h 33m
Wed 10/286:44 pm -
1 stop27h 20m
Deal found 9/8![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:12 pm -
1 stop20h 28m
Mon 11/26:44 pm -
1 stop12h 39m
Deal found 9/9![Frontier logo]()
$129
One-way flights from George Bush Intcntl to St. LouisSearch for one-way flight options from George Bush Intcntl to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from George Bush Intcntl to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:12 pm -
1 stop20h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$42
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:21 pm -
1 stop21h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$44
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:05 am -
1 stop11h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:14 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:14 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:05 am -
1 stop11h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:08 am -
1 stop7h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/139:04 pm -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$76
Find 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $93 (Kiwi.com) |
One-way from | $42 (Kiwi.com) |
Popular in | April |
Cheapest in | October |
Average price | $350 |
Good round-trip deal | $421 or less |
Good one-way deal | $247 or less |
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 7,457,451 searches. Data last updated September 13, 2026.
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
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Wed 12/9
5:25 am-11:29 am
1 stop6h 04m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$119
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Thu 10/8
4:41 pm-12:35 pm
1 stop19h 54m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$134
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Tue 12/8
12:00 pm-2:06 pm
Nonstop2h 06m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Mon 10/12
8:15 pm-10:30 pm
Nonstop2h 15m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Sat 10/10
8:15 pm-10:30 pm
Nonstop2h 15m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
Quickest round-trip
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Thu 11/12
8:00 am-10:02 am
Nonstop2h 02m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Sat 12/5
12:00 pm-2:06 pm
Nonstop2h 06m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Fri 12/11
12:00 pm-2:06 pm
Nonstop2h 06m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$178
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Fri 12/4
12:00 pm-2:06 pm
Nonstop2h 06m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$178
HoustonSt. Louis
IAH Houston George Bush Intcntl - STL Lambert-St Louis
IAHSTL
Houston George Bush Intcntl
Thu 10/8
8:15 pm-10:30 pm
Nonstop2h 15m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$178
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from George Bush Intcntl to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
IAH-STL
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
Prices
Airlines
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to St. Louis?
Currently, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to St. Louis (average of $325). Flying from Houston George Bush Intcntl Airport to St. Louis in April is currently the most expensive (average of $741). 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 September 13, 2026.
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 in the morning, which can drop the price by up to 32% versus a flight in the evening.
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 September 12, 2026.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to St. Louis flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Houston George Bush Intcntl Airport to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to St. Louis trip
Our travel experts
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 September 13, 2026.
Read reviews from past customers who have flown United Airlines and Frontier from Houston George Bush Intcntl Airport to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Comfort
7.3
Boarding
7.7
Overall
7.4
Food
6.7
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Crew
8.1
Comfort
7.3
Boarding
7.7
Overall
7.4
Food
6.7
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Crew
8.1
Comfort
7.3
Boarding
7.7
Overall
7.4
Food
6.7
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from George Bush Intcntl
Popular flights
St. Louis flight routes
Alternative routes for George Bush Intcntl to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from George Bush Intcntl to St. Louis by cabin class
Find flights from George Bush Intcntl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
George Bush Intcntl and St. Louis flights
Browse other George Bush Intcntl and St. Louis flight options. Last updated on September 13, 2026.
Other flights from George Bush Intcntl
Browse through other flights departing from George Bush Intcntl. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Top 2 airlines flying from George Bush Intcntl to St. Louis
Discover the top 2 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 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$258 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$251 | Average$512 | FlexibilityNo cancel fee | On-time69% |