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Cheap flights from Houston George Bush Intcntl Airport to Great Falls from $227

This is the cheapest round-trip 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 10/3. 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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Find the cheapest flights from Houston George Bush Intcntl Airport to Great Falls (IAH-GTF)

Cheap round-trip flights

Logo
7:10 am - 9:37 pmIAH-GTF
15h 27m2 stops
Logo
10:22 pm - 4:24 pmGTF-IAH
17h 02m1 stop
$227
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Fri, Oct 3 - Mon, Oct 6
Logo
7:10 am - 9:37 pmIAH-GTF
15h 27m2 stops
Logo
10:22 pm - 4:24 pmGTF-IAH
17h 02m1 stop
$241
Find Deal
Fri, Oct 3 - Mon, Oct 6
Logo
9:29 am - 9:37 pmIAH-GTF
13h 08m1 stop
Logo
10:22 pm - 4:24 pmGTF-IAH
17h 02m1 stop
$258
Find Deal
Fri, Oct 3 - Mon, Oct 6
Logo
7:10 am - 9:37 pmIAH-GTF
15h 27m2 stops
Logo
10:22 pm - 5:14 amGTF-IAH
29h 52m3 stops
$285
Find Deal
Fri, Oct 3 - Mon, Oct 6
Delta Logo
7:45 am - 12:28 pmIAH-GTF
5h 43m1 stop
Delta Logo
1:08 pm - 9:32 pmGTF-IAH
7h 24m1 stop
$340Delta
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Sat, Nov 1 - Sat, Nov 8
Alaska Airlines Logo
7:00 am - 6:10 pmIAH-GTF
12h 10m1 stop
Alaska Airlines Logo
6:50 pm - 6:26 pmGTF-IAH
22h 36m1 stop
$378Alaska Airlines
Find Deal
Wed, Oct 29 - Mon, Nov 3
Alaska Airlines Logo
7:00 am - 6:10 pmIAH-GTF
12h 10m1 stop
Alaska Airlines Logo
6:50 pm - 4:50 pmGTF-IAH
21h 00m2 stops
$398Alaska Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
7:20 am - 1:26 pmIAH-GTF
7h 06m1 stop
United Airlines Logo
2:31 pm - 10:10 pmGTF-IAH
6h 39m1 stop
$416United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
Delta Logo
7:45 am - 12:28 pmIAH-GTF
5h 43m1 stop
Delta Logo
6:09 pm - 2:10 pmGTF-IAH
19h 01m2 stops
$430Delta
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Sat, Oct 11 - Fri, Oct 17
United Airlines Logo
4:25 pm - 9:11 pmIAH-GTF
5h 46m1 stop
United Airlines Logo
2:31 pm - 10:59 pmGTF-IAH
7h 28m1 stop
$468United Airlines
Find Deal
Sat, Oct 11 - Fri, Oct 17

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
Nov 1
IAH7:45 amHouston George Bush Intcntl
5h 43m
1 stop
GTF12:28 pmGreat Falls
Nov 8
GTF1:08 pmGreat Falls
7h 24m
1 stop
IAH9:32 pmHouston George Bush Intcntl
$340
Find similar
Delta
Oct 11
IAH7:45 amHouston George Bush Intcntl
5h 43m
1 stop
GTF12:28 pmGreat Falls
Oct 17
GTF6:09 pmGreat Falls
19h 01m
2 stops
IAH2:10 pmHouston George Bush Intcntl
$430
Find similar
Delta
Sep 6
IAH11:31 amHouston George Bush Intcntl
6h 55m
1 stop
GTF5:26 pmGreat Falls
Sep 12
GTF1:05 pmGreat Falls
7h 24m
1 stop
IAH9:29 pmHouston George Bush Intcntl
$465
Find similar

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

Our best Alaska Airlines deals on Houston George Bush Intcntl Airport to Great Falls flight tickets
Alaska Airlines
Oct 29
IAH7:00 amHouston George Bush Intcntl
12h 10m
1 stop
GTF6:10 pmGreat Falls
Nov 3
GTF6:50 pmGreat Falls
22h 36m
1 stop
IAH6:26 pmHouston George Bush Intcntl
$378
Find similar
Alaska Airlines
Nov 1
IAH7:00 amHouston George Bush Intcntl
12h 10m
1 stop
GTF6:10 pmGreat Falls
Nov 8
GTF6:50 pmGreat Falls
21h 00m
2 stops
IAH4:50 pmHouston George Bush Intcntl
$398
Find similar
Alaska Airlines
Oct 29
IAH7:00 amHouston George Bush Intcntl
12h 10m
1 stop
GTF6:10 pmGreat Falls
Nov 3
GTF6:50 pmGreat Falls
21h 00m
2 stops
IAH4:50 pmHouston George Bush Intcntl
$401
Find similar

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 August 21, 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

Fly to

Route

Depart

Return

Price

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 10/3

7:10 am-9:37 pm

2 stops15h 27m

Great Falls

Mon 10/6

10:22 pm-4:24 pm

1 stop17h 02m

$227

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 10/3

7:10 am-9:37 pm

2 stops15h 27m

Great Falls

Mon 10/6

10:22 pm-4:24 pm

1 stop17h 02m

$241

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 10/3

9:29 am-9:37 pm

1 stop13h 08m

Great Falls

Mon 10/6

10:22 pm-4:24 pm

1 stop17h 02m

$258

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 10/3

7:10 am-9:37 pm

2 stops15h 27m

Great Falls

Mon 10/6

10:22 pm-5:14 am

3 stops29h 52m

$285

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 11/1

7:45 am-12:28 pm

1 stop5h 43m

Great Falls

Sat 11/8

1:08 pm-9:32 pm

1 stop7h 24m

$340

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Wed 10/29

7:00 am-6:10 pm

1 stop12h 10m

Great Falls

Mon 11/3

6:50 pm-6:26 pm

1 stop22h 36m

$378

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 11/1

7:00 am-6:10 pm

1 stop12h 10m

Great Falls

Sat 11/8

6:50 pm-4:50 pm

2 stops21h 00m

$398

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Fri 10/3

7:20 am-1:26 pm

1 stop7h 06m

Great Falls

Mon 10/6

2:31 pm-10:10 pm

1 stop6h 39m

$416

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 10/11

7:45 am-12:28 pm

1 stop5h 43m

Great Falls

Fri 10/17

6:09 pm-2:10 pm

2 stops19h 01m

$430

HoustonGreat Falls

IAH - GTF

IAHGTF

Houston George Bush Intcntl

Sat 10/11

4:25 pm-9:11 pm

1 stop5h 46m

Great Falls

Fri 10/17

2:31 pm-10:59 pm

1 stop7h 28m

$468

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Great Falls from

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

What is the cheapest time of day to depart on your flight to Great Falls?

According to our data, the cheapest time of day to fly to Great Falls is at noon. momondo users have found flights departing from Houston George Bush Intcntl Airport to Great Falls at noon for as low as $424. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $607 on average. Flights to Great Falls from Houston George Bush Intcntl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 11% 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

Direct flights

None
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.
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  • 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 5h 43m, 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
DeltaPriceFrom $284Free CancellationRating
7.9
7,981 reviews
Search Delta flights

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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?

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