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Cheap flights from Great Falls to Houston from $358

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Houston departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:35 pm - 11:14 pm
GTF
-
IAH
7h 39m
1 stop
United Airlines Logo
6:55 am - 1:34 pm
IAH
-
GTF
7h 39m
1 stop
$358United Airlines
Fri, May 8 - Sat, May 16
Delta Logo
1:07 pm - 10:17 pm
GTF
-
IAH
8h 10m
1 stop
Delta Logo
6:00 am - 5:39 pm
IAH
-
GTF
12h 39m
2 stops
$389Delta
Fri, May 8 - Sat, May 16
Delta Logo
1:09 pm - 9:34 pm
GTF
-
IAH
7h 25m
1 stop
Delta Logo
6:25 am - 5:40 pm
IAH
-
GTF
12h 15m
2 stops
$419Delta
Thu, Apr 23 - Thu, Apr 30
Delta Logo
1:07 pm - 11:55 pm
GTF
-
IAH
9h 48m
2 stops
Delta Logo
6:00 am - 5:39 pm
IAH
-
GTF
12h 39m
2 stops
$449Delta
Fri, May 8 - Sat, May 16
Delta Logo
1:09 pm - 9:34 pm
GTF
-
IAH
7h 25m
1 stop
Delta Logo
12:25 pm - 5:40 pm
IAH
-
GTF
6h 15m
1 stop
$463Delta
Thu, Apr 23 - Thu, Apr 30
Delta Logo
5:40 am - 6:52 pm
GTF
-
IAH
12h 12m
2 stops
Delta Logo
12:17 pm - 5:43 pm
IAH
-
GTF
6h 26m
1 stop
$499Delta
Mon, Jul 20 - Fri, Jul 24
Delta Logo
5:40 am - 11:47 am
GTF
-
IAH
5h 07m
1 stop
Delta Logo
12:17 pm - 5:43 pm
IAH
-
GTF
6h 26m
1 stop
$518Delta
Sun, Jul 19 - Fri, Jul 24
Delta Logo
5:40 am - 11:47 am
GTF
-
IAH
5h 07m
1 stop
Delta Logo
7:35 am - 12:33 pm
IAH
-
GTF
5h 58m
1 stop
$553Delta
Wed, Jul 15 - Mon, Jul 20
Delta Logo
5:40 am - 11:47 am
GTF
-
IAH
5h 07m
1 stop
Delta Logo
7:10 am - 5:43 pm
IAH
-
GTF
11h 33m
2 stops
$658Delta
Wed, Jul 15 - Mon, Jul 20
Multiple Airlines Logo
6:15 pm - 5:16 am
GTF
-
IAH
10h 01m
1 stop
Multiple Airlines Logo
1:58 pm - 5:35 pm
IAH
-
GTF
28h 37m
3 stops
$705Multiple Airlines
Thu, Apr 23 - Thu, Apr 30

Delta flights from Great Falls to Houston George Bush Intcntl Airport

Our best Delta deals on Great Falls to Houston George Bush Intcntl Airport flight tickets
Delta
May 8
GTF1:07 pmGreat Falls
8h 10m
1 stop
IAH10:17 pmHouston George Bush Intcntl
May 16
IAH6:00 amHouston George Bush Intcntl
12h 39m
2 stops
GTF5:39 pmGreat Falls
$389
Delta
Apr 23
GTF1:09 pmGreat Falls
7h 25m
1 stop
IAH9:34 pmHouston George Bush Intcntl
Apr 30
IAH6:25 amHouston George Bush Intcntl
12h 15m
2 stops
GTF5:40 pmGreat Falls
$419
Delta
May 8
GTF1:07 pmGreat Falls
9h 48m
2 stops
IAH11:55 pmHouston George Bush Intcntl
May 16
IAH6:00 amHouston George Bush Intcntl
12h 39m
2 stops
GTF5:39 pmGreat Falls
$449

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

Our best United Airlines deals on Great Falls to Houston George Bush Intcntl Airport flight tickets
United Airlines
May 8
GTF2:35 pmGreat Falls
7h 39m
1 stop
IAH11:14 pmHouston George Bush Intcntl
May 16
IAH6:55 amHouston George Bush Intcntl
7h 39m
1 stop
GTF1:34 pmGreat Falls
$358
United Airlines
Apr 7
GTF6:15 amGreat Falls
6h 13m
1 stop
IAH1:28 pmHouston George Bush Intcntl
Apr 8
IAH2:41 pmHouston George Bush Intcntl
7h 36m
1 stop
GTF9:17 pmGreat Falls
$498

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Houston George Bush Intcntl Airport 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 March 30, 2026.
Use the filters below to find and compare flights from Great Falls to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 5/8

2:35 pm-11:14 pm

1 stop7h 39m

Houston George Bush Intcntl

Sat 5/16

6:55 am-1:34 pm

1 stop7h 39m

$358

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 5/8

1:07 pm-10:17 pm

1 stop8h 10m

Houston George Bush Intcntl

Sat 5/16

6:00 am-5:39 pm

2 stops12h 39m

$389

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/23

1:09 pm-9:34 pm

1 stop7h 25m

Houston George Bush Intcntl

Thu 4/30

6:25 am-5:40 pm

2 stops12h 15m

$419

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 5/8

1:07 pm-11:55 pm

2 stops9h 48m

Houston George Bush Intcntl

Sat 5/16

6:00 am-5:39 pm

2 stops12h 39m

$449

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/23

1:09 pm-9:34 pm

1 stop7h 25m

Houston George Bush Intcntl

Thu 4/30

12:25 pm-5:40 pm

1 stop6h 15m

$463

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Mon 7/20

5:40 am-6:52 pm

2 stops12h 12m

Houston George Bush Intcntl

Fri 7/24

12:17 pm-5:43 pm

1 stop6h 26m

$499

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sun 7/19

5:40 am-11:47 am

1 stop5h 07m

Houston George Bush Intcntl

Fri 7/24

12:17 pm-5:43 pm

1 stop6h 26m

$518
Quickest round-trip

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Wed 7/15

5:40 am-11:47 am

1 stop5h 07m

Houston George Bush Intcntl

Mon 7/20

7:35 am-12:33 pm

1 stop5h 58m

$553

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Wed 7/15

5:40 am-11:47 am

1 stop5h 07m

Houston George Bush Intcntl

Mon 7/20

7:10 am-5:43 pm

2 stops11h 33m

$658

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/23

6:15 pm-5:16 am

1 stop10h 01m

Houston George Bush Intcntl

Thu 4/30

1:58 pm-5:35 pm

3 stops28h 37m

$705

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Houston from

How to get the cheapest flight ticket from Great Falls to Houston George Bush Intcntl Airport

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 typical price of a round-trip flight between Great Falls and Houston George Bush Intcntl Airport?

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

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

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

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

Fastest flight time

5h 20m

Direct flights

None
The fastest flight from Great Falls to Houston George Bush Intcntl Airport takes 5h 20m
There are no direct flights from Great Falls to Houston George Bush Intcntl Airport. There are no popular flight routes from Great Falls to Houston George Bush Intcntl Airport.
Search flight deals

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

    Great Falls and Houston George Bush Intcntl are 1477.1 mi apart from one another. 5h 20m is a normal flight duration for this route.

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

    Prices for flights from Great Falls Airport to Houston George Bush Intcntl Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents required for your trip to Houston George Bush Intcntl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston George Bush Intcntl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Compare and see reviews for airlines that fly from Great Falls to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $147Free CancellationRating
7.9
8,358 reviews
Search Delta flights
United AirlinesPriceFrom $382Free CancellationRating
7.4
9,514 reviews
Search United Airlines flights

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Katy
The Woodlands
Conroe
Humble
Cypress
Spring
Montgomery
Jersey Village
Tomball
Livingston

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It is quick and easy to find Great Falls to Houston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Houston that suits you.

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

Yes. All flights to Houston from Great Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Great Falls to Houston.

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

If you are simply researching potential flights to Houston, momondo offers a useful price alert feature which will track prices for flights to Houston from Great Falls and alert you when they change.

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