$47+ Cheap flights from St. Louis (STL) to George Bush Intcntl (IAH)
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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IAH
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to George Bush Intcntl 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.Cheapflights Tip: The best prices from Lambert-St Louis to Houston George Bush Intcntl are usually found in January or October, booked 9 days in advance, depart on a Friday or Thursday and return on a Wednesday
Cheap flight deals from St. Louis to George Bush Intcntl
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to George Bush IntcntlExplore the most affordable flight options available from St. Louis to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from St. Louis to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/295:55 pm -
Nonstop2h 30m
Mon 11/28:20 pm -
Nonstop2h 06m
Deal found 9/20![United Airlines logo]()
$217
This CheapOair deal was found by Cheapflights users on 9/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:29 pm -
1 stop8h 01m
Tue 10/139:12 pm -
1 stop20h 28m
Deal found 9/18![Frontier logo]()
$220
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:35 pm -
1 stop12h 44m
Mon 10/266:05 am -
1 stop11h 35m
Deal found 9/17![Frontier logo]()
$221
This Expedia deal was found by Cheapflights users on 9/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:10 pm -
1 stop28h 33m
Wed 10/76:25 am -
1 stop12h 52m
Deal found 9/18![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 11/116:44 pm -
1 stop12h 39m
Thu 11/129:14 pm -
2 stops14h 05m
Deal found 9/18![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 11/512:14 pm -
2 stops19h 09m
Tue 11/178:21 pm -
1 stop21h 19m
Deal found 9/18![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 11/96:44 pm -
1 stop12h 39m
Thu 11/129:14 pm -
2 stops14h 05m
Deal found 9/18![Frontier logo]()
$225
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:42 pm -
1 stop13h 54m
Mon 10/1912:07 pm -
1 stop5h 33m
Deal found 9/17![Frontier logo]()
$226
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:30 pm -
1 stop10h 56m
Mon 10/1912:07 pm -
1 stop5h 33m
Deal found 9/17![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/166:35 pm -
1 stop12h 44m
Sun 10/188:35 pm -
2 stops21h 05m
Deal found 9/16![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Sat 11/77:59 pm -
1 stop13h 53m
Mon 11/166:05 am -
1 stop11h 35m
Deal found 9/18![Frontier logo]()
$230
Best flights from St. Louis to George Bush IntcntlDiscover carefully curated flight deals from St. Louis to George Bush Intcntl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from St. Louis to George Bush Intcntl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/156:15 am -
Nonstop2h 12m
Mon 10/198:15 pm -
Nonstop2h 15m
Deal found 9/20![United Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/26:00 am -
Nonstop2h 21m
Sat 12/54:30 pm -
Nonstop2h 11m
Deal found 9/16![United Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/231:36 pm -
1 stop6h 15m
Mon 10/268:20 pm -
Nonstop2h 06m
Deal found 9/21![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/26:15 am -
Nonstop2h 12m
Tue 10/68:15 pm -
Nonstop2h 15m
Deal found 9/17![United Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 9/18. 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 11/108:50 am -
1 stop15h 09m
Mon 11/168:20 pm -
Nonstop2h 06m
Deal found 9/18![United Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/135:55 pm -
Nonstop2h 21m
Mon 11/168:20 pm -
Nonstop2h 06m
Deal found 9/16![United Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 9/19. 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 11/248:30 am -
Nonstop2h 31m
Sun 11/298:20 pm -
Nonstop2h 05m
Deal found 9/19![United Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/316:15 am -
Nonstop2h 20m
Sun 11/88:00 am -
Nonstop2h 02m
Deal found 9/19![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/148:35 am -
Nonstop2h 17m
Tue 10/205:00 am -
1 stop7h 13m
Deal found 9/16![United Airlines logo]()
$449
Last-minute flights from St. Louis to George Bush IntcntlDiscover last-minute flight deals from St. Louis to George Bush Intcntl. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to George Bush Intcntl. Data last updated September 21, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:10 pm -
1 stop28h 33m
Wed 10/76:25 am -
1 stop12h 52m
Deal found 9/18![Frontier logo]()
$222
This CheapOair deal was found by Cheapflights users on 9/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:29 pm -
1 stop8h 01m
Tue 10/139:12 pm -
1 stop20h 28m
Deal found 9/18![Frontier logo]()
$220
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:30 pm -
1 stop10h 56m
Mon 10/1912:07 pm -
1 stop5h 33m
Deal found 9/17![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/166:35 pm -
1 stop12h 44m
Sun 10/188:35 pm -
2 stops21h 05m
Deal found 9/16![Frontier logo]()
$229
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:42 pm -
1 stop13h 54m
Mon 10/1912:07 pm -
1 stop5h 33m
Deal found 9/17![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Sat 10/177:42 pm -
2 stops10h 18m
Wed 10/216:05 am -
1 stop11h 35m
Deal found 9/21![Frontier logo]()
$233
This CheapOair deal was found by Cheapflights users on 9/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:19 pm -
1 stop8h 21m
Sat 10/2410:31 am -
1 stop8h 26m
Deal found 9/19![Frontier logo]()
$224
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:35 pm -
1 stop12h 44m
Mon 10/266:05 am -
1 stop11h 35m
Deal found 9/17![Frontier logo]()
$221
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/295:55 pm -
Nonstop2h 30m
Mon 11/28:20 pm -
Nonstop2h 06m
Deal found 9/20![United Airlines logo]()
$217
One-way flights from St. Louis to George Bush IntcntlSearch for one-way flight options from St. Louis to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from St. Louis to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:44 pm -
1 stop12h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$47
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:35 pm -
1 stop12h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$50
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/146:35 pm -
1 stop12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/186:44 pm -
1 stop12h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/216:35 pm -
1 stop12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$53
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/196:35 pm -
1 stop12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$54
This Trip.com deal was found by Cheapflights users on 9/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:35 pm -
1 stop12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 12/1412:02 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/136:44 pm -
1 stop12h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 12/1612:02 pm -
1 stop25h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$67
Find flight deals from St. Louis to George Bush Intcntl
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to George Bush Intcntl (IAH). 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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (United Airlines) |
One-way from | $47 (Mytrip) |
Popular in | August |
Cheapest in | January |
Average price | $355 |
Good round-trip deal | $356 or less |
Good one-way deal | $268 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to George Bush Intcntl 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 21, 2026.
Use the filters below to find and compare flights from St. Louis to Houston George Bush Intcntl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Thu 11/26
6:15 am-8:35 am
Nonstop2h 20m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$109
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Tue 11/17
10:05 am-5:17 pm
1 stop7h 12m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$119
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Tue 12/15
12:36 pm-5:29 pm
1 stop4h 53m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$119
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Wed 10/28
2:55 pm-5:19 pm
Nonstop2h 24m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$120
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 11/23
5:59 pm-12:25 am
1 stop6h 26m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$139
Quickest round-trip
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 10/12
6:15 am-8:27 am
Nonstop2h 12m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 11/23
11:00 am-1:24 pm
Nonstop2h 24m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Tue 10/20
11:10 am-1:25 pm
Nonstop2h 15m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Mon 10/26
2:55 pm-5:19 pm
Nonstop2h 24m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Tue 11/17
11:00 am-1:24 pm
Nonstop2h 24m
Houston George Bush Intcntl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from St. Louis to George Bush Intcntl
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 St. Louis to George Bush Intcntl 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 | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Houston George Bush Intcntl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Houston George Bush Intcntl Airport 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 St. Louis-Houston George Bush Intcntl Airport 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 St. Louis to George Bush Intcntl
Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from St. Louis with our price prediction graph.
STL-IAH
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 St. Louis to Houston George Bush Intcntl Airport
Prices
More
How far ahead should I book a flight from St. Louis to Houston George Bush Intcntl Airport?
The best time to book flights from St. Louis to Houston George Bush Intcntl Airport is 8 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from St. Louis to Houston George Bush Intcntl Airport?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Houston George Bush Intcntl Airport (average of $243). Flying from St. Louis to Houston George Bush Intcntl Airport in August is currently the most expensive (average of $493). 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 STL to IAH?
Find hourly flight availability from St. Louis to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 21, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Houston George Bush Intcntl Airport as you normally would.
What’s the top layover airport for flights from St. Louis to Houston George Bush Intcntl Airport?
Share of 1-stop round-trip flights from St. Louis to Houston George Bush Intcntl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Orlando (MCO) – chosen by Cheapflights users on 50% of 1-stop itineraries from St. Louis to Houston George Bush Intcntl Airport on Cheapflights.
What’s the cheapest layover airport for flights from St. Louis to Houston George Bush Intcntl Airport?
Average round-trip fare for 1-stop flights from St. Louis to Houston George Bush Intcntl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $158.
What’s the fastest layover option from St. Louis to Houston George Bush Intcntl Airport?
Shortest average travel time for 1-stop one-way flights from St. Louis to Houston George Bush Intcntl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 14h 52m.
Which airport typically offers the quickest layover for flights from St. Louis to Houston George Bush Intcntl Airport?
Average layover duration for 1-stop one-way flights from St. Louis to Houston George Bush Intcntl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 8h 43m.
The best insider tips for St. Louis to Houston George Bush Intcntl Airport 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 St. Louis to Houston George Bush Intcntl Airport trip
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Reviews of airlines servicing George Bush Intcntl
Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated September 21, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andFrontier from St. Louis to Houston George Bush Intcntl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from St. Louis to George Bush Intcntl. 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 locationsConroe
Katy
The Woodlands
Spring
Humble
Jersey Village
Tomball
Cypress
Montgomery
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Top 3 airlines flying from St. Louis to George Bush Intcntl
Discover the top 3 airlines that operate flights from St. Louis to George Bush Intcntl. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$153 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$182 | Average$445 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$402 | FlexibilityNo cancel fee | On-time69% |