$348+ Cheap flights from George Bush Intcntl (IAH) to Great Falls (GTF)
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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — GTF
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from George Bush Intcntl to Great Falls 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 Great Falls
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Cheapest flights from George Bush Intcntl to Great FallsExplore the most affordable flight options available from George Bush Intcntl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
Explore the most affordable flight options available from George Bush Intcntl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:20 am -
1 stop6h 15m
Tue 12/81:17 pm -
1 stop7h 41m
Deal found 9/10![Delta logo]()
$348
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:33 pm -
2 stops9h 18m
Mon 12/76:19 pm -
2 stops13h 39m
Deal found 9/10![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/7. 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 11/148:30 am -
1 stop6h 19m
Sat 11/212:45 pm -
1 stop5h 13m
Deal found 9/7![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 11/137:20 am -
1 stop6h 21m
Sun 11/221:21 pm -
1 stop7h 29m
Deal found 9/7![Delta logo]()
$368
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:20 am -
1 stop6h 15m
Mon 12/145:30 am -
1 stop7h 09m
Deal found 9/9![Delta logo]()
$378
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:20 am -
1 stop6h 15m
Sun 12/61:17 pm -
1 stop7h 41m
Deal found 9/10![Delta logo]()
$418
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.
Wed 11/118:30 am -
1 stop6h 19m
Sat 11/146:30 am -
1 stop6h 01m
Deal found 9/10![United Airlines logo]()
$444
Best flights from George Bush Intcntl to Great FallsDiscover carefully curated flight deals from George Bush Intcntl to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from George Bush Intcntl to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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 11/148:30 am -
1 stop6h 19m
Sat 11/212:45 pm -
1 stop5h 13m
Deal found 9/7![United Airlines logo]()
$364
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:20 am -
1 stop6h 15m
Tue 12/81:17 pm -
1 stop7h 41m
Deal found 9/11![Delta logo]()
$368
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:20 am -
1 stop6h 15m
Sun 12/66:19 pm -
2 stops28h 44m
Deal found 9/10![Delta logo]()
$421
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.
Wed 11/118:30 am -
1 stop6h 19m
Sat 11/146:30 am -
1 stop6h 01m
Deal found 9/10![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/7. 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 11/134:26 pm -
1 stop6h 12m
Sat 11/212:45 pm -
1 stop5h 13m
Deal found 9/7![United Airlines logo]()
$503
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 11/147:00 am -
2 stops11h 39m
Sun 11/225:30 am -
2 stops14h 41m
Deal found 9/7![Delta logo]()
$513
Last-minute flights from George Bush Intcntl to Great FallsDiscover last-minute flight deals from George Bush Intcntl to Great Falls. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to Great Falls. Data last updated September 11, 2026 and is based on user searches.
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.
Thu 9/104:27 pm -
1 stop5h 45m
Fri 9/112:25 pm -
1 stop7h 32m
Deal found 9/10![United Airlines logo]()
$1,542
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 9/182:52 pm -
1 stop7h 20m
Mon 9/212:25 pm -
1 stop7h 32m
Deal found 9/8![United Airlines logo]()
$608
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:16 pm -
2 stops23h 23m
Mon 9/215:19 pm -
2 stops19h 12m
Deal found 9/8![Alaska Airlines logo]()
$1,632
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:02 am -
1 stop10h 37m
Tue 9/225:19 pm -
1 stop22h 54m
Deal found 9/9![Alaska Airlines logo]()
$1,272
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.
Mon 9/219:47 am -
2 stops12h 25m
Tue 9/222:25 pm -
1 stop5h 30m
Deal found 9/9![United Airlines logo]()
$1,285
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am -
2 stops11h 41m
Tue 9/225:40 am -
2 stops8h 28m
Deal found 9/9![Delta logo]()
$1,913
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:25 am -
1 stop6h 10m
Sat 10/36:21 pm -
2 stops13h 10m
Deal found 9/10![Delta logo]()
$752
One-way flights from George Bush Intcntl to Great FallsSearch for one-way flight options from George Bush Intcntl to Great Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from George Bush Intcntl to Great Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/257:30 am -
1 stop6h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$373
Find flight deals from George Bush Intcntl to Great Falls
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Great Falls (GTF). 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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (Delta) |
Popular in | December |
Cheapest in | August |
Average price | $837 |
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl to Great Falls 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 11, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Great Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Sat 11/14
8:30 am-1:49 pm
1 stop6h 19m
Great Falls
Sat 11/21
2:45 pm-8:58 pm
1 stop5h 13m
$364
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Fri 12/4
7:20 am-12:35 pm
1 stop6h 15m
Great Falls
Tue 12/8
1:17 pm-9:58 pm
1 stop7h 41m
$368
Quickest round-trip
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Mon 1/25
7:30 am-1:29 pm
1 stop6h 59m
Great Falls
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$373
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Fri 12/4
7:20 am-12:35 pm
1 stop6h 15m
Great Falls
Sun 12/6
6:19 pm-12:03 am
2 stops28h 44m
$421
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Wed 11/11
8:30 am-1:49 pm
1 stop6h 19m
Great Falls
Sat 11/14
6:30 am-1:31 pm
1 stop6h 01m
$444
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Fri 11/13
4:26 pm-9:38 pm
1 stop6h 12m
Great Falls
Sat 11/21
2:45 pm-8:58 pm
1 stop5h 13m
$503
HoustonGreat Falls
IAH Houston George Bush Intcntl - GTF Great Falls
IAHGTF
Houston George Bush Intcntl
Sat 11/14
7:00 am-5:39 pm
2 stops11h 39m
Great Falls
Sun 11/22
5:30 am-9:11 pm
2 stops14h 41m
$513
Sorted by cheapest first
Compare providers for flights from George Bush Intcntl to Great Falls
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 Great Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Great Falls 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-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Great Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Great Falls 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-Great Falls 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 Great Falls
Have a flexible travel schedule? Discover the best time to fly to Great Falls from George Bush Intcntl with our price prediction graph.
IAH-GTF
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.
Reviews of airlines servicing Great Falls
Get insights into the airlines that provide service to Great Falls. 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 Great Falls. Reviews last updated September 11, 2026.
Get a feel of what it's like to fly with United Airlines from Houston George Bush Intcntl Airport to Great Falls 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
Crew
8.1
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Crew
8.1
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Related info for your journey
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Top airline flying from George Bush Intcntl to Great Falls
Discover the top airline that operate flights from George Bush Intcntl to Great Falls. 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 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$298 | Average$635 | FlexibilityNo cancel fee | On-time69% |