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George Bush Intcntl

$318+ Cheap flights from Great Falls (GTF) 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — IAH
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap flight deals from Great Falls to George Bush Intcntl

Cheapest flights from Great Falls to George Bush Intcntl
Explore the most affordable flight options available from Great Falls to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/7. 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 5/2312:30 pm
GTF
-
IAH
1 stop8h 06m
United Airlines
Wed 5/276:30 am
IAH
-
GTF
1 stop8h 11m
United Airlines
Deal found 3/7$318
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:15 pm
GTF
-
IAH
1 stop10h 01m
Alaska Airlines
Tue 5/54:46 pm
IAH
-
GTF
1 stop25h 49m
Alaska Airlines
Deal found 3/9$377
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/22:35 pm
GTF
-
IAH
1 stop5h 56m
United Airlines
Tue 5/56:55 am
IAH
-
GTF
1 stop7h 39m
United Airlines
Deal found 3/8$396
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/22:30 pm
GTF
-
IAH
1 stop5h 33m
United Airlines
Thu 4/97:00 am
IAH
-
GTF
1 stop7h 31m
United Airlines
Deal found 3/5$408
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 4/22:30 pm
GTF
-
IAH
1 stop7h 44m
United Airlines
Mon 4/64:32 pm
IAH
-
GTF
1 stop5h 45m
United Airlines
Deal found 3/7$434
This United Airlines deal was found by Cheapflights users on 3/7. 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 3/202:30 pm
GTF
-
IAH
1 stop7h 16m
United Airlines
Sun 3/226:40 am
IAH
-
GTF
1 stop7h 53m
United Airlines
Deal found 3/7$438
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/310:22 am
GTF
-
IAH
1 stop27h 47m
Multiple Airlines
Sun 4/1210:39 am
IAH
-
GTF
1 stop11h 42m
Multiple Airlines
Deal found 3/6$472
This United Airlines deal was found by Cheapflights users on 3/7. 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 3/212:30 pm
GTF
-
IAH
1 stop5h 25m
United Airlines
Sun 3/226:40 am
IAH
-
GTF
1 stop7h 53m
United Airlines
Deal found 3/7$473
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/210:01 pm
GTF
-
IAH
1 stop10h 53m
Multiple Airlines
Thu 4/91:17 pm
IAH
-
GTF
2 stops22h 35m
Multiple Airlines
Deal found 3/5$508

Find flight deals from Great Falls to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) 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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$318
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$466
Provider with most accurate pricing for Great Falls-Houston George Bush Intcntl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-Houston George Bush Intcntl flights.
Search Deals
From Great Falls to Houston George Bush Intcntl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls 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 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from Great Falls to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sat 5/2

6:15 pm-5:16 am

1 stop10h 01m

Houston George Bush Intcntl

Tue 5/5

4:46 pm-5:35 pm

1 stop25h 49m

$377

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sat 5/2

2:35 pm-11:14 pm

1 stop7h 39m

Houston George Bush Intcntl

Tue 5/5

2:49 pm-9:18 pm

1 stop7h 29m

$396
Quickest round-trip

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/2

2:30 pm-9:03 pm

1 stop5h 33m

Houston George Bush Intcntl

Thu 4/9

7:00 am-1:31 pm

1 stop7h 31m

$408

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/2

2:30 pm-11:14 pm

1 stop7h 44m

Houston George Bush Intcntl

Mon 4/6

4:32 pm-9:17 pm

1 stop5h 45m

$434

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 3/20

2:30 pm-10:46 pm

1 stop7h 16m

Houston George Bush Intcntl

Sun 3/22

6:40 am-1:33 pm

1 stop7h 53m

$438

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/2

10:01 pm-9:54 am

1 stop10h 53m

Houston George Bush Intcntl

Thu 4/9

1:17 pm-10:52 am

2 stops22h 35m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

Compare providers for flights from Great Falls 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 Great Falls to George Bush Intcntl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-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 Great Falls-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-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 Great Falls-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 Great Falls to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Great Falls 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.

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 March 10, 2026.
Read through reviews of airlines operating flights from Great Falls to Houston George Bush Intcntl Airport, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,276 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,409 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Great Falls 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.

  • What airport do you fly from for flights from Great Falls to Houston George Bush Intcntl?

    Most people fly from Great Falls (GTF) if they book a flight from Great Falls to Houston George Bush Intcntl. On average, Great Falls has 0 outbound flights to Houston George Bush Intcntl per day from 2 airlines. Great Falls is conveniently located just 3.5 mi from Great Falls’s city center.

  • How long is the flight from Great Falls to Houston George Bush Intcntl Airport?

    For as low as $396, Alaska Airlines can have you in Houston George Bush Intcntl Airport from Great Falls in 7h 39m. The distance from Great Falls to Houston George Bush Intcntl Airport is about 1478 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Great Falls to Houston George Bush Intcntl Airport round-trip?

    Cheapflights users have booked flights from Great Falls to Houston George Bush Intcntl Airport round-trip from $147. Another airline that can offer you cheap pricing is United Airlines. Users have found that Delta is 74% cheaper than the other options available to this destination.

  • Can I find deals for flights from Great Falls to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Great Falls to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to George Bush Intcntl.

  • Can I find deals for business class flights from Great Falls to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Great Falls to George Bush Intcntl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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 locations
Katy
The Woodlands
Montgomery
Spring
Tomball
Humble
Jersey Village
Cypress
Conroe

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Alternative routes for Great Falls to George Bush Intcntl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Great Falls to George Bush Intcntl

Discover the top 2 airlines that operate flights from Great Falls 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 2,558,603 searches. Data last updated March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$147Average$466FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$382Average$627FlexibilityNo cancel feeOn-time69%

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