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Cheap flights from Great Falls to Houston from $238

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Houston departing on 1/2. 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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Cheap round-trip flights

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Delta Logo
1:10 pm - 9:40 pmGTF-IAH
7h 30m1 stop
Delta Logo
7:45 am - 12:32 pmIAH-GTF
5h 47m1 stop
$328Delta
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Tue, Mar 10 - Wed, Mar 11
Delta Logo
1:10 pm - 9:40 pmGTF-IAH
7h 30m1 stop
Delta Logo
6:30 am - 5:44 pmIAH-GTF
12h 14m2 stops
$334Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Hawaiian Airlines Logo
4:00 pm - 11:59 pmGTF-IAH
6h 59m1 stop
Hawaiian Airlines Logo
7:35 am - 3:20 pmIAH-GTF
8h 45m1 stop
$365Hawaiian Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
1:10 pm - 9:40 pmGTF-IAH
7h 30m1 stop
Delta Logo
7:45 am - 12:32 pmIAH-GTF
5h 47m1 stop
$375Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
1:10 pm - 9:40 pmGTF-IAH
7h 30m1 stop
Delta Logo
9:40 am - 10:53 pmIAH-GTF
14h 13m2 stops
$381Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
United Airlines Logo
2:30 pm - 10:57 pmGTF-IAH
7h 27m1 stop
United Airlines Logo
7:20 am - 1:33 pmIAH-GTF
7h 13m1 stop
$392United Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
Delta Logo
1:10 pm - 11:59 pmGTF-IAH
9h 49m2 stops
Delta Logo
7:45 am - 12:32 pmIAH-GTF
5h 47m1 stop
$414Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
1:10 pm - 11:59 pmGTF-IAH
9h 49m2 stops
Delta Logo
9:40 am - 10:53 pmIAH-GTF
14h 13m2 stops
$419Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Alaska Airlines Logo
8:00 pm - 11:59 pmGTF-IAH
26h 59m1 stop
Alaska Airlines Logo
7:00 am - 7:20 pmIAH-GTF
13h 20m1 stop
$442Alaska Airlines
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Fri, Jan 23 - Sun, Feb 1
United Airlines Logo
2:30 pm - 8:42 amGTF-IAH
17h 12m2 stops
United Airlines Logo
5:05 am - 9:15 pmIAH-GTF
17h 10m1 stop
$797United Airlines
Find Deal
Thu, Mar 26 - Sun, Mar 29

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
Nov 19
GTF2:30 pmGreat Falls
7h 27m
1 stop
IAH10:57 pmHouston George Bush Intcntl
Nov 26
IAH7:20 amHouston George Bush Intcntl
7h 13m
1 stop
GTF1:33 pmGreat Falls
$392
Find similar
United Airlines
Mar 26
GTF2:30 pmGreat Falls
17h 12m
2 stops
IAH8:42 amHouston George Bush Intcntl
Mar 29
IAH5:05 amHouston George Bush Intcntl
17h 10m
1 stop
GTF9:15 pmGreat Falls
$797
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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
Mar 10
GTF1:10 pmGreat Falls
7h 30m
1 stop
IAH9:40 pmHouston George Bush Intcntl
Mar 11
IAH7:45 amHouston George Bush Intcntl
5h 47m
1 stop
GTF12:32 pmGreat Falls
$328
Find similar
Delta
Mar 10
GTF1:10 pmGreat Falls
7h 30m
1 stop
IAH9:40 pmHouston George Bush Intcntl
Mar 11
IAH6:30 amHouston George Bush Intcntl
12h 14m
2 stops
GTF5:44 pmGreat Falls
$334
Find similar
Delta
Mar 9
GTF1:10 pmGreat Falls
7h 30m
1 stop
IAH9:40 pmHouston George Bush Intcntl
Mar 11
IAH7:45 amHouston George Bush Intcntl
5h 47m
1 stop
GTF12:32 pmGreat Falls
$375
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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 October 21, 2025.
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

Tue 3/10

1:10 pm-9:40 pm

1 stop7h 30m

Houston George Bush Intcntl

Wed 3/11

7:45 am-12:32 pm

1 stop5h 47m

$328

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Tue 3/10

1:10 pm-9:40 pm

1 stop7h 30m

Houston George Bush Intcntl

Wed 3/11

6:30 am-5:44 pm

2 stops12h 14m

$334

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Tue 3/10

4:00 pm-11:59 pm

1 stop6h 59m

Houston George Bush Intcntl

Wed 3/11

7:35 am-3:20 pm

1 stop8h 45m

$365

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Mon 3/9

1:10 pm-9:40 pm

1 stop7h 30m

Houston George Bush Intcntl

Wed 3/11

7:45 am-12:32 pm

1 stop5h 47m

$375

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Mon 3/9

1:10 pm-9:40 pm

1 stop7h 30m

Houston George Bush Intcntl

Wed 3/11

9:40 am-10:53 pm

2 stops14h 13m

$381

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Wed 11/19

2:30 pm-10:57 pm

1 stop7h 27m

Houston George Bush Intcntl

Wed 11/26

7:20 am-1:33 pm

1 stop7h 13m

$392

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Tue 3/10

1:10 pm-11:59 pm

2 stops9h 49m

Houston George Bush Intcntl

Wed 3/11

7:45 am-12:32 pm

1 stop5h 47m

$414

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Tue 3/10

1:10 pm-11:59 pm

2 stops9h 49m

Houston George Bush Intcntl

Wed 3/11

9:40 am-10:53 pm

2 stops14h 13m

$419

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Fri 1/23

8:00 pm-11:59 pm

1 stop26h 59m

Houston George Bush Intcntl

Sun 2/1

7:00 am-7:20 pm

1 stop13h 20m

$442

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 3/26

2:30 pm-8:42 am

2 stops17h 12m

Houston George Bush Intcntl

Sun 3/29

5:05 am-9:15 pm

1 stop17h 10m

$797

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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 cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Great Falls to Houston George Bush Intcntl Airport is on a Sunday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Sunday will often find tickets for as low as $452. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Tuesday is $667.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Great Falls to Houston George Bush Intcntl Airport flights are usually those with departure times in the morning. Our users have found flights to Houston George Bush Intcntl Airport in the morning for as low as $576. Try not to purchase tickets at noon because they tend to be around $644. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights

None
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.
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  • 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 58m 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
7,978 reviews
Search Delta flights
United AirlinesPriceFrom $382Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights

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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