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$138+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — GTF
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap 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 29, 2025.

Round-trip from

$416
(Delta)

One-way from

$138
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$760
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. 10% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 29, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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 10/296:35 pmIAH - GTF
1 stop5h 31mDelta
Mon 11/35:30 amGTF - IAH
1 stop5h 29mDelta
Deal found 7/28$378
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 9/265:59 pmIAH - GTF
2 stops22h 50mAlaska Airlines
Mon 9/294:29 pmGTF - IAH
2 stops47h 30mAlaska Airlines
Deal found 7/27$440
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/168:49 pmIAH - GTF
1 stop17h 47mUnited Airlines
Wed 8/207:00 amGTF - IAH
1 stop14h 29mUnited Airlines
Deal found 7/26$520

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 29, 2025.
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

George Bush Intcntl

Fly to

Great Falls

Route

Depart

Return

Price

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 8/22

2:20 pm-8:34 pm

1 stop7h 14m

Great Falls

Sun 8/24

6:00 am-1:50 pm

1 stop6h 50m

$416

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 9/26

5:59 pm-3:49 pm

2 stops22h 50m

Great Falls

Mon 9/29

4:29 pm-4:59 pm

2 stops47h 30m

$440

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 8/16

8:49 pm-1:36 pm

1 stop17h 47m

Great Falls

Wed 8/20

7:00 am-10:29 pm

1 stop14h 29m

$520

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Thu 8/21

8:56 pm-10:31 am

1 stop14h 35m

$138

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Wed 8/20

2:20 pm-8:34 pm

1 stop7h 14m

$172

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Wed 8/20

8:00 am-3:49 pm

1 stop8h 49m

$238

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Thu 8/21

7:59 pm-9:28 pm

2 stops26h 29m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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. 2 airlines 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.

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

    Flying on Delta is currently your cheapest option to Great Falls, with prices starting at $416. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $440 and $520, respectively. Delta is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Great Falls one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $172. Alaska Airlines flights start at $238 while deals on United Airlines start at $338 one-way.

  • 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.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Great Falls?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Great Falls (average of $367). Flying from Houston George Bush Intcntl Airport to Great Falls in July is currently the most expensive (average of $574). 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.

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Top 2 airlines flying from George Bush Intcntl to Great Falls

Discover the top 2 airlines 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$284Average$459FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$470Average$603FlexibilityNo cancel feeOn-time69%

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