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George Bush Intcntl

$199+ Cheap flights from Kalispell (FCA) 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — IAH
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheap flight deals from Kalispell to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$373
(Delta)

One-way from

$199
(Delta)

Popular in

August

Cheapest in

June

Average price

$508
Provider with most accurate pricing for Kalispell Glacier Park-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Kalispell Glacier Park-Houston George Bush Intcntl flights.
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From Kalispell Glacier Park to Houston George Bush Intcntl
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One-way flight from Kalispell Glacier Park to Houston George Bush Intcntl
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Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Kalispell to George Bush Intcntl

Cheapest flights from Kalispell to George Bush Intcntl
Explore the most affordable flight options available from Kalispell to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

This Delta deal was found by Cheapflights users on 9/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:00 amFCA - IAH
1 stop6h 06mDelta
Tue 12/307:40 pmIAH - FCA
1 stop6h 07mDelta
Deal found 9/27$373
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:15 pmFCA - IAH
1 stop6h 18mUnited Airlines
Thu 1/110:25 amIAH - FCA
1 stop6h 36mUnited Airlines
Deal found 9/27$403
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Wed 12/248:10 pmFCA - IAH
1 stop8h 31mAlaska Airlines
Wed 12/315:57 pmIAH - FCA
1 stop20h 39mAlaska Airlines
Deal found 9/27$415
This Delta deal was found by Cheapflights users on 9/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:20 amFCA - IAH
1 stop7h 25mDelta
Tue 12/307:40 pmIAH - FCA
1 stop6h 07mDelta
Deal found 9/27$419
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Tue 12/2312:58 pmFCA - IAH
1 stop26h 59mAlaska Airlines
Wed 12/315:57 pmIAH - FCA
1 stop20h 39mAlaska Airlines
Deal found 9/27$422
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Tue 12/238:10 pmFCA - IAH
1 stop8h 31mAlaska Airlines
Thu 1/17:01 amIAH - FCA
1 stop18h 14mAlaska Airlines
Deal found 9/27$449
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Mon 12/228:10 pmFCA - IAH
1 stop8h 31mAlaska Airlines
Thu 1/17:01 amIAH - FCA
1 stop13h 29mAlaska Airlines
Deal found 9/27$450
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:55 pmFCA - IAH
1 stop10h 23mMultiple Airlines
Mon 12/298:51 pmIAH - FCA
1 stop21h 14mMultiple Airlines
Deal found 9/27$451
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:38 pmFCA - IAH
1 stop7h 38mUnited Airlines
Thu 1/110:25 amIAH - FCA
1 stop6h 36mUnited Airlines
Deal found 9/27$453
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Mon 12/228:10 pmFCA - IAH
1 stop8h 31mAlaska Airlines
Wed 12/315:57 pmIAH - FCA
1 stop20h 39mAlaska Airlines
Deal found 9/27$460
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:15 pmFCA - IAH
1 stop6h 18mUnited Airlines
Wed 12/316:40 pmIAH - FCA
1 stop18h 02mUnited Airlines
Deal found 9/27$461

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell 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 September 29, 2025.
Use the filters below to find and compare flights from Kalispell to Houston George Bush Intcntl Airport that are best for you.

Fly from

Kalispell

Fly to

George Bush Intcntl

Route

Depart

Return

Price

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Wed 12/24

8:10 pm-5:41 am

1 stop8h 31m

Houston George Bush Intcntl

Wed 12/31

5:57 pm-1:36 pm

1 stop20h 39m

$415

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Thu 12/25

5:20 am-1:45 pm

1 stop7h 25m

Houston George Bush Intcntl

Tue 12/30

7:40 pm-12:47 am

1 stop6h 07m

$419

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Sun 12/21

2:38 pm-11:16 pm

1 stop7h 38m

Houston George Bush Intcntl

Thu 1/1

10:25 am-4:01 pm

1 stop6h 36m

$453

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Mon 12/22

8:10 pm-5:41 am

1 stop8h 31m

Houston George Bush Intcntl

Wed 12/31

5:57 pm-1:36 pm

1 stop20h 39m

$460

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Wed 12/24

8:10 pm-5:41 am

1 stop8h 31m

Houston George Bush Intcntl

Mon 12/29

7:01 am-12:18 pm

1 stop30h 17m

$465

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Sat 12/20

12:30 pm-9:31 pm

1 stop8h 01m

Houston George Bush Intcntl

Thu 1/1

6:27 am-11:21 pm

2 stops17h 54m

$467

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Tue 12/23

12:58 pm-4:57 pm

1 stop26h 59m

Houston George Bush Intcntl

Wed 12/31

5:57 pm-12:18 pm

2 stops19h 21m

$471

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Wed 12/24

1:55 pm-11:38 pm

1 stop8h 43m

Houston George Bush Intcntl

Mon 12/29

4:00 pm-12:47 am

2 stops9h 47m

$478

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Thu 12/25

5:20 am-1:45 pm

1 stop7h 25m

Houston George Bush Intcntl

Mon 12/29

4:00 pm-12:47 am

2 stops9h 47m

$524

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Fri 12/19

5:00 am-12:06 pm

1 stop6h 06m

Houston George Bush Intcntl

Mon 12/29

7:42 am-5:07 pm

1 stop10h 25m

$566

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 13 results
1
2

Compare providers for flights from Kalispell 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 Kalispell to George Bush Intcntl in September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Kalispell-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 Kalispell-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kalispell-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 Kalispell-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 Kalispell to George Bush Intcntl

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

Cheapflights Insights

Everything you need to know about your flight from Kalispell to Houston George Bush Intcntl Airport

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

Currently, August is the cheapest month in which you can book a flight from Kalispell to Houston George Bush Intcntl Airport (average of $241). Flying from Kalispell to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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.

What is the cheapest time of day to fly from FCA to IAH?

Find hourly flight availability from Kalispell to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

One of the essential ways to save on airfare from Kalispell to Houston George Bush Intcntl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 38% on airfare.

How much does it cost to fly round-trip from Kalispell to Houston George Bush Intcntl Airport?

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 September 29, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Kalispell to Houston George Bush Intcntl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Kalispell 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 Kalispell to Houston George Bush Intcntl?

    Kalispell Glacier Park (FCA), located 8.4 mi from the city center, is the airport you fly out of when you book flights from Kalispell to Houston George Bush Intcntl. 2 airlines have flights from Glacier Park to Houston George Bush Intcntl on a regular basis. Booking flights from Kalispell Glacier Park to Houston George Bush Intcntl should not be difficult; the airport handles an average of 0 outbound flights to Houston George Bush Intcntl per day.

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

    For as low as $419, Alaska Airlines can have you in Houston George Bush Intcntl Airport from Kalispell in 7h 25m. The distance between Kalispell and Houston George Bush Intcntl Airport is about 1611 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Kalispell to Houston George Bush Intcntl Airport is Delta. Our recent data shows that you can find tickets from as low as $166 on this airline. An additional option worth looking into is United Airlines, starting at $276. These flights start at 68% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from Kalispell 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 Kalispell to George Bush Intcntl.

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

    Yes. Cheapflights offers flight deals from Kalispell 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.

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

    Currently, August is the cheapest month in which you can book a flight from Kalispell to Houston George Bush Intcntl Airport (average of $241). Flying from Kalispell to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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.

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
Montgomery
Spring
Jersey Village
Humble
The Woodlands
Conroe
Tomball
Katy
Cypress

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Top 2 airlines flying from Kalispell to George Bush Intcntl

Discover the top 2 airlines that operate flights from Kalispell 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$166Average$486FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$471FlexibilityNo cancel feeOn-time69%

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