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$180+ Cheap flights from George Bush Intcntl (IAH) to Great Falls (GTF)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — GTF
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from George Bush Intcntl to Great Falls

Cheapest flights from George Bush Intcntl to Great Falls
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 July 25, 2026.

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 8/217:30 am
IAH
-
GTF
1 stop5h 58m
Delta
Sat 8/291:08 pm
GTF
-
IAH
1 stop7h 42m
Delta
Deal found 7/22$348
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.
Mon 8/177:20 am
IAH
-
GTF
2 stops11h 18m
Delta
Mon 8/246:18 pm
GTF
-
IAH
2 stops13h 19m
Delta
Deal found 7/24$369
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 8/83:00 pm
IAH
-
GTF
1 stop7h 34m
United Airlines
Sat 8/152:25 pm
GTF
-
IAH
1 stop7h 31m
United Airlines
Deal found 7/21$383
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.
Mon 12/216:30 am
IAH
-
GTF
2 stops12h 13m
Delta
Fri 1/11:10 pm
GTF
-
IAH
1 stop7h 26m
Delta
Deal found 7/22$424
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 10/317:20 am
IAH
-
GTF
1 stop7h 17m
United Airlines
Wed 11/42:39 pm
GTF
-
IAH
1 stop8h 19m
United Airlines
Deal found 7/20$438

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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(Delta)

One-way from

$180
(Expedia)

Popular in

December

Cheapest in

August

Average price

$553
Provider with most accurate pricing for Houston George Bush Intcntl-Great Falls flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Great Falls flights.
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From Houston George Bush Intcntl to Great Falls
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One-way flight from Houston George Bush Intcntl to Great Falls
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Highest demand for flights based on searches. 24% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($32 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 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 2,558,603 searches. Data last updated July 25, 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

Price

Cheapest round-trip

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 8/21

7:30 am-12:28 pm

1 stop5h 58m

Great Falls

Sat 8/29

1:08 pm-9:50 pm

1 stop7h 42m

$348

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 10/31

7:20 am-1:37 pm

1 stop7h 17m

Great Falls

Wed 11/4

2:39 pm-11:58 pm

1 stop8h 19m

$438
Quickest round-trip

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 9/19

4:27 pm-9:12 pm

1 stop5h 45m

Great Falls

Sat 9/26

2:37 pm-10:59 pm

1 stop7h 22m

$448
Cheapest one-way

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Tue 8/25

7:02 am-4:38 pm

1 stop10h 36m

$180

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 11/7

8:30 am-9:38 pm

2 stops14h 08m

$418

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Mon 8/3

8:00 am-4:29 pm

1 stop9h 29m

$449
Quickest one-way

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Mon 8/3

7:30 am-12:28 pm

1 stop5h 58m

$453

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 8/1

8:00 am-4:29 pm

1 stop9h 29m

$524

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Mon 8/3

2:50 pm-4:29 pm

3 stops26h 39m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

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 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 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.
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 July 25, 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.
United Airlines
7.4
Good
10,034 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
10,034 reviews
United Airlines
7.4
Good
10,034 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Great Falls. 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 into for flights to Great Falls from Houston George Bush Intcntl?

    Great Falls (GTF), located 3.5 mi from the city center, is the airport you fly into when you book flights from Houston George Bush Intcntl to Great Falls. 1 airline have flights to Great Falls from Houston George Bush Intcntl on a regular basis. Booking flights from Houston George Bush Intcntl to Great Falls should not be difficult; the airport handles an average of 0 inbound flights from Houston George Bush Intcntl per day.

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

    Departing from Houston George Bush Intcntl Airport to Great Falls will take you 5h 58m. Houston George Bush Intcntl Airport and Great Falls are separated by a distance of 1478 mi.

  • What is the cheapest airline to fly from Houston George Bush Intcntl Airport to Great Falls round-trip?

    Flying on United Airlines is currently your cheapest option to Great Falls, with prices starting at $298.

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

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

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

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

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

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

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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 2,558,603 searches. Data last updated July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$635FlexibilityNo cancel feeOn-time69%

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