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Cheap flights from Great Falls to Houston from $379

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 2/6. 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

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Multiple Airlines Logo
5:18 pm - 5:55 am
GTF
-
IAH
11h 37m
1 stop
Multiple Airlines Logo
10:12 pm - 4:28 pm
IAH
-
GTF
19h 16m
1 stop
$379Multiple Airlines
Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
5:18 pm - 11:39 pm
GTF
-
IAH
29h 21m
2 stops
Multiple Airlines Logo
10:12 pm - 4:28 pm
IAH
-
GTF
19h 16m
1 stop
$397Multiple Airlines
Fri, Feb 6 - Sun, Feb 8
Delta Logo
5:25 am - 11:59 am
GTF
-
IAH
5h 34m
1 stop
Delta Logo
7:20 am - 12:32 pm
IAH
-
GTF
6h 12m
1 stop
$408Delta
Thu, Feb 5 - Sun, Feb 8
Delta Logo
6:15 pm - 8:49 am
GTF
-
IAH
13h 34m
2 stops
Delta Logo
7:20 am - 12:32 pm
IAH
-
GTF
6h 12m
1 stop
$414Delta
Thu, Feb 5 - Sun, Feb 8
Delta Logo
1:10 pm - 9:38 pm
GTF
-
IAH
7h 28m
1 stop
Delta Logo
11:55 am - 5:39 pm
IAH
-
GTF
6h 44m
1 stop
$434Delta
Tue, Jun 2 - Mon, Jun 8
Delta Logo
6:20 pm - 8:41 am
GTF
-
IAH
13h 21m
2 stops
Delta Logo
11:55 am - 5:39 pm
IAH
-
GTF
6h 44m
1 stop
$440Delta
Tue, Jun 2 - Mon, Jun 8
United Airlines Logo
2:30 pm - 11:14 pm
GTF
-
IAH
7h 44m
1 stop
United Airlines Logo
10:15 pm - 1:31 pm
IAH
-
GTF
16h 16m
1 stop
$537United Airlines
Thu, Apr 2 - Mon, Apr 6
Delta Logo
5:30 am - 11:50 am
GTF
-
IAH
5h 20m
1 stop
Delta Logo
7:35 am - 12:24 pm
IAH
-
GTF
5h 49m
1 stop
$563Delta
Thu, Apr 2 - Mon, Apr 6
United Airlines Logo
2:25 pm - 11:59 pm
GTF
-
IAH
8h 34m
1 stop
United Airlines Logo
6:30 am - 1:43 pm
IAH
-
GTF
8h 13m
1 stop
$592United Airlines
Thu, Feb 12 - Sun, Feb 15
Delta Logo
5:30 am - 11:50 am
GTF
-
IAH
5h 20m
1 stop
Delta Logo
7:35 am - 12:24 pm
IAH
-
GTF
5h 49m
1 stop
$601Delta
Sun, Apr 5 - Sun, Apr 12

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

Our best Alaska Airlines deals on Great Falls to Houston George Bush Intcntl Airport flight tickets
Alaska Airlines
Apr 2
GTF5:06 pmGreat Falls
11h 15m
1 stop
IAH5:21 amHouston George Bush Intcntl
Apr 6
IAH7:00 amHouston George Bush Intcntl
10h 26m
1 stop
GTF4:26 pmGreat Falls
$621
Alaska Airlines
Jun 2
GTF6:52 pmGreat Falls
17h 41m
2 stops
IAH1:33 pmHouston George Bush Intcntl
Jun 8
IAH6:18 pmHouston George Bush Intcntl
24h 54m
2 stops
GTF6:12 pmGreat Falls
$650
Alaska Airlines
Apr 2
GTF5:06 pmGreat Falls
11h 15m
1 stop
IAH5:21 amHouston George Bush Intcntl
Apr 6
IAH2:27 pmHouston George Bush Intcntl
26h 59m
2 stops
GTF4:26 pmGreat Falls
$714

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
Apr 2
GTF2:30 pmGreat Falls
7h 44m
1 stop
IAH11:14 pmHouston George Bush Intcntl
Apr 6
IAH10:15 pmHouston George Bush Intcntl
16h 16m
1 stop
GTF1:31 pmGreat Falls
$537
United Airlines
Feb 12
GTF2:25 pmGreat Falls
8h 34m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Feb 15
IAH6:30 amHouston George Bush Intcntl
8h 13m
1 stop
GTF1:43 pmGreat Falls
$592
United Airlines
Jan 27
GTF6:10 amGreat Falls
8h 10m
1 stop
IAH3:20 pmHouston George Bush Intcntl
Jan 31
IAH8:18 amHouston George Bush Intcntl
6h 30m
1 stop
GTF1:48 pmGreat Falls
$597

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 January 21, 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

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 2/6

5:18 pm-5:55 am

1 stop11h 37m

Houston George Bush Intcntl

Sun 2/8

10:12 pm-4:28 pm

1 stop19h 16m

$379

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 2/6

5:18 pm-11:39 pm

2 stops29h 21m

Houston George Bush Intcntl

Sun 2/8

10:12 pm-4:28 pm

1 stop19h 16m

$397

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 2/5

5:25 am-11:59 am

1 stop5h 34m

Houston George Bush Intcntl

Sun 2/8

7:20 am-12:32 pm

1 stop6h 12m

$408

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 2/5

6:15 pm-8:49 am

2 stops13h 34m

Houston George Bush Intcntl

Sun 2/8

7:20 am-12:32 pm

1 stop6h 12m

$414

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Tue 6/2

1:10 pm-9:38 pm

1 stop7h 28m

Houston George Bush Intcntl

Mon 6/8

11:55 am-5:39 pm

1 stop6h 44m

$434

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Tue 6/2

6:20 pm-8:41 am

2 stops13h 21m

Houston George Bush Intcntl

Mon 6/8

11:55 am-5:39 pm

1 stop6h 44m

$440

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/2

2:30 pm-11:14 pm

1 stop7h 44m

Houston George Bush Intcntl

Mon 4/6

10:15 pm-1:31 pm

1 stop16h 16m

$537

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 4/2

5:30 am-11:50 am

1 stop5h 20m

Houston George Bush Intcntl

Mon 4/6

7:35 am-12:24 pm

1 stop5h 49m

$563

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 2/12

2:25 pm-11:59 pm

1 stop8h 34m

Houston George Bush Intcntl

Sun 2/15

6:30 am-1:43 pm

1 stop8h 13m

$592

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Sun 4/5

5:30 am-11:50 am

1 stop5h 20m

Houston George Bush Intcntl

Sun 4/12

7:35 am-12:24 pm

1 stop5h 49m

$601

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

7h 19m

Direct flights

None
The fastest flight from Great Falls to Houston George Bush Intcntl Airport takes 7h 19m
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. 7h 19m 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
8,088 reviews
Search Delta flights
United AirlinesPriceFrom $382Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights

  • How do I get Price Alerts for flights from Great Falls to Houston George Bush Intcntl Airport?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Great Falls from Houston George Bush Intcntl Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Great Falls to Houston George Bush Intcntl Airport with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Houston?

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

Why use momondo?

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

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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