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George Bush Intcntl

$266+ Cheap flights from Great Falls (GTF) to George Bush Intcntl (IAH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — IAH
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
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 July 24, 2026.

This United Airlines deal was found by Cheapflights users on 7/24. 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 10/72:37 pm
GTF
-
IAH
1 stop6h 09m
United Airlines
Tue 10/133:00 pm
IAH
-
GTF
1 stop7h 22m
United Airlines
Deal found 7/24$348
This Delta deal was found by Cheapflights users on 7/22. 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 10/85:40 am
GTF
-
IAH
1 stop6h 49m
Delta
Tue 10/137:00 am
IAH
-
GTF
2 stops11h 38m
Delta
Deal found 7/22$354
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 10/71:13 pm
GTF
-
IAH
1 stop7h 35m
Delta
Tue 10/137:00 am
IAH
-
GTF
2 stops11h 38m
Delta
Deal found 7/24$364
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sat 12/52:25 pm
GTF
-
IAH
1 stop5h 25m
United Airlines
Wed 12/97:30 am
IAH
-
GTF
1 stop6h 59m
United Airlines
Deal found 7/20$438
This Delta deal was found by Cheapflights users on 7/22. 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 7/246:25 pm
GTF
-
IAH
2 stops13h 12m
Delta
Wed 8/197:30 am
IAH
-
GTF
1 stop5h 58m
Delta
Deal found 7/22$469

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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(Delta)

One-way from

$266
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$363
Provider with most accurate pricing for Great Falls-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Great Falls-Houston George Bush Intcntl flights.
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From Great Falls to Houston George Bush Intcntl
Search Deals
One-way flight from Great Falls to Houston George Bush Intcntl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in July 2026
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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 July 24, 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

Thu 10/8

5:40 am-1:29 pm

1 stop6h 49m

Houston George Bush Intcntl

Tue 10/13

7:00 am-5:38 pm

2 stops11h 38m

$354

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Wed 10/7

1:13 pm-9:48 pm

1 stop7h 35m

Houston George Bush Intcntl

Tue 10/13

7:00 am-5:38 pm

2 stops11h 38m

$364
Quickest round-trip

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sat 12/5

2:25 pm-8:50 pm

1 stop5h 25m

Houston George Bush Intcntl

Wed 12/9

7:30 am-1:29 pm

1 stop6h 59m

$438
Cheapest one-way

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 8/13

1:08 pm-9:50 pm

1 stop7h 42m

$462

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sun 8/23

1:08 pm-11:54 pm

2 stops9h 46m

$475
Quickest one-way

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sun 8/23

2:25 pm-8:55 pm

1 stop5h 30m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

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 July.
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 July 24, 2026.
Read through reviews of airlines operating flights from Great Falls to Houston George Bush Intcntl Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,026 reviews

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
United Airlines
7.4
Good
10,026 reviews
United Airlines
7.4
Good
10,026 reviews

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

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 1 airline. 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 $438, Delta can have you in Houston George Bush Intcntl Airport from Great Falls in 5h 25m. 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 is the cheapest airline to fly 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 $382. Users have found that United Airlines is 36% 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
Spring
Conroe
Jersey Village
Humble
Tomball
Cypress
Montgomery

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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 airline flying from Great Falls to George Bush Intcntl

Discover the top airline 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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$382Average$623FlexibilityNo cancel feeOn-time69%

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