$128 Cheap Flights from Houston (IAH) to Kalispell (FCA)

View $128 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA)

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Find available prices by choosing your travel dates.

Cheap Flights from Houston to Kalispell (IAH-FCA)

Prices were available within the past 7 days and start at $128 for one-way flights and $256 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Oct 28 - Sat, Nov 15
IAH
Houston
FCA
Kalispell
$256 Roundtrip, found 5 hours ago
$256
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Houston to Kalispell, returning Sat, Nov 15, priced at $256 found 5 hours ago
American Airlines
Tue, Aug 12 - Tue, Aug 19
IAH
Houston
FCA
Kalispell
$257 Roundtrip, just found
$257
Roundtrip
just found
Select American Airlines flight, departing Tue, Aug 12 from Houston to Kalispell, returning Tue, Aug 19, priced at $257 just found
Delta
Tue, Aug 12 - Tue, Aug 19
IAH
Houston
FCA
Kalispell
$257 Roundtrip, just found
$257
Roundtrip
just found
Select Delta flight, departing Tue, Aug 12 from Houston to Kalispell, returning Tue, Aug 19, priced at $257 just found
United
Sat, Aug 9 - Wed, Aug 13
IAH
Houston
FCA
Kalispell
$257 Roundtrip, found 6 hours ago
$257
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Aug 9 from Houston to Kalispell, returning Wed, Aug 13, priced at $257 found 6 hours ago
Delta
Tue, May 27 - Thu, Jun 5
IAH
Houston
FCA
Kalispell
$259 Roundtrip, found 3 days ago
$259
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, May 27 from Houston to Kalispell, returning Thu, Jun 5, priced at $259 found 3 days ago
American Airlines
Fri, Aug 8 - Wed, Aug 13
IAH
Houston
FCA
Kalispell
$261 Roundtrip, found 1 hour ago
$261
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Aug 8 from Houston to Kalispell, returning Wed, Aug 13, priced at $261 found 1 hour ago
Delta
Sat, Aug 30 - Thu, Sep 4
IAH
Houston
FCA
Kalispell
$262 Roundtrip, found 2 hours ago
$262
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 30 from Houston to Kalispell, returning Thu, Sep 4, priced at $262 found 2 hours ago
Delta
Sun, Aug 10 - Sat, Aug 16
IAH
Houston
FCA
Kalispell
$266 Roundtrip, found 5 hours ago
$266
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Aug 10 from Houston to Kalispell, returning Sat, Aug 16, priced at $266 found 5 hours ago
Delta
Tue, Jul 1 - Thu, Jul 3
IAH
Houston
FCA
Kalispell
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jul 1 from Houston to Kalispell, returning Thu, Jul 3, priced at $267 found 2 days ago
Hawaiian Airlines
Sat, Jun 7 - Mon, Jun 9
IAH
Houston
FCA
Kalispell
$299 Roundtrip, found 15 hours ago
$299
Roundtrip
found 15 hours ago
Select Hawaiian Airlines flight, departing Sat, Jun 7 from Houston to Kalispell, returning Mon, Jun 9, priced at $299 found 15 hours ago
Flights from Houston (IAH) to Kalispell (FCA)
Origin airport
George Bush Intercontinental
Destination airport
Glacier Park Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$256
Distance
1612 mi

Houston to Kalispell Flights

The cheapest times to fly from Houston to Kalispell

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Kalispell are during the month of October. You can find some of the cheapest flights from Houston to Kalispell with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Houston to Kalispell

Sunday is one of the best days to book for cheap flights from Houston to Kalispell: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Houston to Kalispell

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Kalispell in 2025. You can also book with separate airlines for your outbound and return journeys, from $128 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Kalispell flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Kalispell airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA) cost?
Discover the latest flight deals from IAH to FCA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAH to FCA?
The cheapest flights from IAH to FCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAH to FCA?
With tickets starting at $403 for a one-way flight from IAH to FCA, United is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAH on June 28 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA)?
There aren’t any daily direct flights from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be soaring above the clouds in no time.
What day of the week has the most flights from IAH to FCA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA)?
To avoid possible delays on the George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA) route, fly before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA) last-minute?
Last-minute fares from IAH to FCA are generally more expensive. To lock in the best prices, start looking for flights well in advance. That being said, if you can play around with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book an IAH to FCA flight and hotel package?
You’ll generally save money by booking an IAH to FCA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. Once you’ve selected your preferred accommodations and flights, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Glacier Park Intl. Airport (FCA)?
If you reserved your IAH to FCA flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you’d like more information.

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*Available to One Key members.