CA $238 Cheap Flights from Houston (IAH) to Great Falls (GTF)

View CA $238 flight on Tue, Oct. 28, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Great Falls, MT (GTF-Great Falls Intl.)

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Cheap flights from Houston (IAH) to Great Falls (GTF)

Prices were available within the past 7 days and start at CA $238 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Houston (IAH) to Great Falls (GTF)

January is typically the cheapest month to fly

From CA $407 - CA $1,029 per traveller.

Graph displaying average flight prices per month

Flight from Houston to Great Falls (IAH - GTF) route information
Origin airport
George Bush Intercontinental
Destination airport
Great Falls Intl.
Distance
2366 km

Houston to Great Falls Flights

The easy way to book your flights from Houston to Great Falls 

With Expedia, it’s simple to find and book flights to Great Falls from Houston whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 19 airlines that cover this route. There are nonstop flights to Great Falls Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Houston to Great Falls today, tomorrow, or this week.  

 

Save dollars with cheap flights from George Bush Intercontinental, IAH to Great Falls Intl., GTF 

Sort your search results by price to find great deals on your flight from Houston to Great Falls—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Great Falls from Houston currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Great Falls  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Great Falls from Houston 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Great Falls with Expedia today.

Frequently asked questions

How much is a flight from IAH to GTF?
If you're travelling from Houston Airport to Great Falls Intl. Airport, round-trip flights start from . This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't hang about. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAH to Great Falls Intl. Airport?
The majority of flights can be conveniently cancelled online, but whether or not you are charged a fee varies between airlines. If you do have to cancel your getaway, follow the instructions in the Customer Service Portal.
How do I find cheap flights from George Bush Intercontinental Airport (IAH) to GTF that have flexible change policies?
Flights from Houston Airport to GTF with flexible change policies are available with many airlines. Simply use our "No change fees" filter while searching. You'll only need to cover the difference in ticket price, without any extra fees to worry about.
How many hours is the flight from Houston Airport to GTF?
The flight time from Houston Airport to Great Falls Intl. Airport (GTF) is roughly 5 hours and 34 minutes. Grab your headphones, listen to a good podcast and the time will whiz by.
How far is the flight from George Bush Intercontinental Airport (IAH) to Great Falls Intl. Airport?
Expect to be cruising at altitude for a while, as the flight distance between IAH and Great Falls Intl. Airport is 2,400 kilometres. Put together a playlist of your favourite podcasts before you leave home to stay entertained during your journey.
Which airlines fly direct from Houston Airport to Great Falls Intl. Airport?
Unfortunately, there are no airlines that directly fly between IAH and Great Falls Intl. Airport (GTF). You'll have to book a flight with one or more stops.
Are George Bush Intercontinental Airport (IAH) to GTF flight tickets cheaper when they're purchased at the last minute?
Flight prices from George Bush Intercontinental Airport (IAH) to GTF are available up to a year before departure on Expedia. And although you may occasionally pick up a fantastic last-minute deal, it's never a sure thing. Also, booking your flights well in advance means you'll have more choices — and you can avoid being wedged in the dreaded middle seat! We're always updating our fares to bring you the best bargains, so keep checking in for all the latest specials.

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