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Cheap flights from Houston George Bush Intcntl Airport to Great Falls from $220

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Great Falls departing on 7/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Houston George Bush Intcntl Airport to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:10 am - 9:29 am
IAH
-
GTF
28h 19m
2 stops
Multiple Airlines Logo
10:19 am - 12:47 pm
GTF
-
IAH
25h 28m
1 stop
$317Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
8:53 pm - 9:29 am
IAH
-
GTF
13h 36m
1 stop
Multiple Airlines Logo
10:19 am - 12:47 pm
GTF
-
IAH
25h 28m
1 stop
$330Multiple Airlines
Sun, Aug 2 - Mon, Aug 10
Delta Logo
7:30 am - 12:28 pm
IAH
-
GTF
5h 58m
1 stop
Delta Logo
1:08 pm - 9:50 pm
GTF
-
IAH
7h 42m
1 stop
$338Delta
Fri, Aug 7 - Thu, Aug 13
Multiple Airlines Logo
8:53 pm - 9:29 am
IAH
-
GTF
13h 36m
1 stop
Multiple Airlines Logo
10:19 am - 12:47 pm
GTF
-
IAH
25h 28m
1 stop
$339Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
Delta Logo
7:30 am - 12:28 pm
IAH
-
GTF
5h 58m
1 stop
Delta Logo
1:08 pm - 11:54 pm
GTF
-
IAH
9h 46m
2 stops
$344Delta
Fri, Aug 7 - Wed, Aug 12
Delta Logo
6:30 am - 5:42 pm
IAH
-
GTF
12h 12m
2 stops
Delta Logo
6:28 pm - 8:37 am
GTF
-
IAH
13h 09m
2 stops
$349Delta
Sun, Aug 2 - Thu, Aug 13
Multiple Airlines Logo
4:27 pm - 9:34 am
IAH
-
GTF
42h 07m
2 stops
Multiple Airlines Logo
10:19 am - 12:47 pm
GTF
-
IAH
25h 28m
1 stop
$354Multiple Airlines
Wed, Jul 15 - Mon, Jul 27
Multiple Airlines Logo
8:53 pm - 9:34 am
IAH
-
GTF
13h 41m
1 stop
Multiple Airlines Logo
10:19 am - 12:47 pm
GTF
-
IAH
25h 28m
1 stop
$359Multiple Airlines
Thu, Jul 9 - Mon, Jul 13
Delta Logo
7:30 am - 12:28 pm
IAH
-
GTF
5h 58m
1 stop
Delta Logo
1:08 pm - 9:50 pm
GTF
-
IAH
7h 42m
1 stop
$363Delta
Fri, Aug 7 - Wed, Aug 12
Delta Logo
7:10 am - 5:42 pm
IAH
-
GTF
11h 32m
2 stops
Delta Logo
5:40 am - 1:31 pm
GTF
-
IAH
6h 51m
1 stop
$369Delta
Mon, Jul 20 - Wed, Jul 29

United Airlines flights from Houston George Bush Intcntl Airport to Great Falls

Our best United Airlines deals on Houston George Bush Intcntl Airport to Great Falls flight tickets
United Airlines
Jun 5
IAH6:30 amHouston George Bush Intcntl
8h 11m
1 stop
GTF1:41 pmGreat Falls
Jun 11
GTF2:37 pmGreat Falls
7h 29m
1 stop
IAH11:06 pmHouston George Bush Intcntl
$397
United Airlines
Aug 29
IAH7:20 amHouston George Bush Intcntl
7h 09m
1 stop
GTF1:29 pmGreat Falls
Sep 2
GTF2:25 pmGreat Falls
6h 16m
1 stop
IAH9:41 pmHouston George Bush Intcntl
$438
United Airlines
Aug 1
IAH3:00 pmHouston George Bush Intcntl
7h 34m
1 stop
GTF9:34 pmGreat Falls
Aug 14
GTF2:25 pmGreat Falls
7h 32m
1 stop
IAH10:57 pmHouston George Bush Intcntl
$508

Delta flights from Houston George Bush Intcntl Airport to Great Falls

Our best Delta deals on Houston George Bush Intcntl Airport to Great Falls flight tickets
Delta
Aug 7
IAH7:30 amHouston George Bush Intcntl
5h 58m
1 stop
GTF12:28 pmGreat Falls
Aug 13
GTF1:08 pmGreat Falls
7h 42m
1 stop
IAH9:50 pmHouston George Bush Intcntl
$338
Delta
Aug 7
IAH7:30 amHouston George Bush Intcntl
5h 58m
1 stop
GTF12:28 pmGreat Falls
Aug 12
GTF1:08 pmGreat Falls
9h 46m
2 stops
IAH11:54 pmHouston George Bush Intcntl
$344
Delta
Aug 2
IAH6:30 amHouston George Bush Intcntl
12h 12m
2 stops
GTF5:42 pmGreat Falls
Aug 13
GTF6:28 pmGreat Falls
13h 09m
2 stops
IAH8:37 amHouston George Bush Intcntl
$349

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport 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, momondo users made 832,500 searches. Data last updated May 20, 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

Thu 8/6

6:10 am-9:29 am

2 stops28h 19m

Great Falls

Mon 8/10

10:19 am-12:47 pm

1 stop25h 28m

$317

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sun 8/2

8:53 pm-9:29 am

1 stop13h 36m

Great Falls

Mon 8/10

10:19 am-12:47 pm

1 stop25h 28m

$330
Quickest round-trip

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 8/7

7:30 am-12:28 pm

1 stop5h 58m

Great Falls

Thu 8/13

1:08 pm-9:50 pm

1 stop7h 42m

$338

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Thu 8/6

8:53 pm-9:29 am

1 stop13h 36m

Great Falls

Mon 8/10

10:19 am-12:47 pm

1 stop25h 28m

$339

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 8/7

7:30 am-12:28 pm

1 stop5h 58m

Great Falls

Wed 8/12

1:08 pm-11:54 pm

2 stops9h 46m

$344

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sun 8/2

6:30 am-5:42 pm

2 stops12h 12m

Great Falls

Thu 8/13

6:28 pm-8:37 am

2 stops13h 09m

$349

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Wed 7/15

4:27 pm-9:34 am

2 stops42h 07m

Great Falls

Mon 7/27

10:19 am-12:47 pm

1 stop25h 28m

$354

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Thu 7/9

8:53 pm-9:34 am

1 stop13h 41m

Great Falls

Mon 7/13

10:19 am-12:47 pm

1 stop25h 28m

$359

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 8/7

7:30 am-12:28 pm

1 stop5h 58m

Great Falls

Wed 8/12

1:08 pm-9:50 pm

1 stop7h 42m

$363

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Mon 7/20

7:10 am-5:42 pm

2 stops11h 32m

Great Falls

Wed 7/29

5:40 am-1:31 pm

1 stop6h 51m

$369

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Houston George Bush Intcntl Airport to Great Falls flights?

You could potentially save up to 80% on your flight if you consider stops on a Houston George Bush Intcntl Airport to Great Falls flight.

When to book flights from Houston George Bush Intcntl Airport to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Great Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Great Falls (IAH to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Great Falls

Fastest flight time

6h 44m

Direct flights

None
The fastest flight from Houston George Bush Intcntl Airport to Great Falls takes 6h 44m
There are no direct flights from Houston George Bush Intcntl Airport to Great Falls. There are no popular flight routes from Houston George Bush Intcntl Airport to Great Falls.
Search flight deals

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Great Falls

  • How far is Houston George Bush Intcntl to Great Falls by plane?

    Great Falls is 1477.1 mi away from Houston George Bush Intcntl. Flights usually cover this in 6h 44m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Great Falls Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Great Falls Airport are updated daily.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Great Falls Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Great Falls Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Great Falls Airport.

  • What documentation or ID do you need to fly to Great Falls Airport?

    The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Houston George Bush Intcntl Airport to Great Falls?

Best airlines flying from Houston George Bush Intcntl Airport to Great Falls

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Great Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights

Traveling to a place near Great Falls?

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Why should I use momondo to find a flight deal from Houston to Great Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from Houston.

Can I find flights from Houston to Great Falls with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Houston to Great Falls flights to just show those with flexible booking policies.

How can momondo help me find flights from Houston to Great Falls?

Once all potential Houston to Great Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Houston to Great Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Houston to Great Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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