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Cheap flights from Montana to Houston from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Houston departing on 5/14. 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.
Multiple Airlines Logo
10:24 am - 12:33 pm
GTF
-
IAH
25h 09m
1 stop
Multiple Airlines Logo
1:46 pm - 9:28 am
IAH
-
GTF
20h 42m
1 stop
$241Multiple Airlines
Mon, Jun 1 - Thu, Jun 4
Multiple Airlines Logo
8:54 pm - 12:33 pm
MSO
-
IAH
14h 39m
1 stop
Multiple Airlines Logo
1:28 pm - 8:04 pm
IAH
-
MSO
7h 36m
1 stop
$247Multiple Airlines
Fri, May 15 - Mon, May 18
Multiple Airlines Logo
10:24 am - 10:44 am
GTF
-
IAH
23h 20m
2 stops
Multiple Airlines Logo
1:46 pm - 9:28 am
IAH
-
GTF
20h 42m
1 stop
$248Multiple Airlines
Mon, Jun 1 - Thu, Jun 4
Multiple Airlines Logo
8:54 pm - 12:44 am
MSO
-
IAH
26h 50m
2 stops
Multiple Airlines Logo
1:28 pm - 8:04 pm
IAH
-
MSO
7h 36m
1 stop
$250Multiple Airlines
Fri, May 15 - Mon, May 18
United Airlines Logo
12:45 pm - 5:08 pm
BZN
-
IAH
3h 23mnonstop
United Airlines Logo
6:00 am - 2:56 pm
IAH
-
BZN
9h 56m
1 stop
$319United Airlines
Sat, Sep 5 - Tue, Sep 8
Delta Logo
3:15 pm - 9:38 pm
BZN
-
IAH
5h 23m
1 stop
Delta Logo
6:35 pm - 11:59 pm
IAH
-
BZN
6h 24m
1 stop
$329Delta
Sat, Sep 5 - Fri, Sep 18
Delta Logo
6:15 am - 1:59 pm
BIL
-
IAH
6h 44m
1 stop
Delta Logo
5:50 pm - 10:37 pm
IAH
-
BIL
5h 47m
1 stop
$340Delta
Sat, Aug 22 - Mon, Aug 31
United Airlines Logo
4:10 pm - 11:59 pm
BIL
-
IAH
6h 49m
1 stop
United Airlines Logo
5:15 am - 9:35 am
IAH
-
BIL
5h 20m
1 stop
$349United Airlines
Thu, May 21 - Mon, May 25
Alaska Airlines Logo
6:05 am - 5:14 pm
BIL
-
IAH
10h 09m
1 stop
Alaska Airlines Logo
2:34 pm - 11:29 pm
IAH
-
BIL
9h 55m
1 stop
$374Alaska Airlines
Sat, Aug 29 - Wed, Sep 2
Alaska Airlines Logo
6:05 am - 5:14 pm
BIL
-
IAH
10h 09m
1 stop
Alaska Airlines Logo
2:34 pm - 11:29 pm
IAH
-
BIL
9h 55m
1 stop
$375Alaska Airlines
Sat, Aug 29 - Wed, Sep 2

American Airlines flights from Montana to Houston George Bush Intcntl Airport

Our best American Airlines deals on Montana to Houston George Bush Intcntl Airport flight tickets
American Airlines
Aug 20
BIL7:00 amBillings Logan Intl
7h 20m
1 stop
IAH3:20 pmHouston George Bush Intcntl
Aug 29
IAH4:14 pmHouston George Bush Intcntl
7h 30m
1 stop
BIL10:44 pmBillings Logan Intl
$340
American Airlines
Sep 3
FCA3:29 pmKalispell Glacier Park
7h 30m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Sep 6
IAH5:00 amHouston George Bush Intcntl
9h 32m
2 stops
FCA1:32 pmKalispell Glacier Park
$354
American Airlines
Jun 16
BZN4:16 pmBozeman Gallatin Field
5h 12m
1 stop
IAH10:28 pmHouston George Bush Intcntl
Jun 20
IAH2:04 pmHouston George Bush Intcntl
7h 40m
1 stop
BZN8:44 pmBozeman Gallatin Field
$359

Alaska Airlines flights from Montana to Houston George Bush Intcntl Airport

Our best Alaska Airlines deals on Montana to Houston George Bush Intcntl Airport flight tickets
Alaska Airlines
Aug 25
BZN2:18 pmBozeman Gallatin Field
8h 41m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Aug 26
IAH2:34 pmHouston George Bush Intcntl
9h 25m
1 stop
BZN10:59 pmBozeman Gallatin Field
$374
Alaska Airlines
Aug 29
BIL6:05 amBillings Logan Intl
10h 09m
1 stop
IAH5:14 pmHouston George Bush Intcntl
Sep 2
IAH2:34 pmHouston George Bush Intcntl
9h 55m
1 stop
BIL11:29 pmBillings Logan Intl
$375
Alaska Airlines
May 26
FCA4:14 pmKalispell Glacier Park
20h 32m
1 stop
IAH1:46 pmHouston George Bush Intcntl
May 29
IAH5:57 pmHouston George Bush Intcntl
24h 03m
1 stop
FCA5:00 pmKalispell Glacier Park
$384

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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 April 14, 2026.
Use the filters below to find and compare flights from Montana 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

Mon 6/1

10:24 am-12:33 pm

1 stop25h 09m

Houston George Bush Intcntl

Thu 6/4

1:46 pm-9:28 am

1 stop20h 42m

$241

MissoulaHouston

MSO - IAH

MSOIAH

Missoula Johnson-Bell Field

Fri 5/15

8:54 pm-12:33 pm

1 stop14h 39m

Houston George Bush Intcntl

Mon 5/18

1:28 pm-8:04 pm

1 stop7h 36m

$247

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Mon 6/1

10:24 am-10:44 am

2 stops23h 20m

Houston George Bush Intcntl

Thu 6/4

1:46 pm-9:28 am

1 stop20h 42m

$248

MissoulaHouston

MSO - IAH

MSOIAH

Missoula Johnson-Bell Field

Fri 5/15

8:54 pm-12:44 am

2 stops26h 50m

Houston George Bush Intcntl

Mon 5/18

1:28 pm-8:04 pm

1 stop7h 36m

$250

BozemanHouston

BZN - IAH

BZNIAH

Bozeman Gallatin Field

Sat 9/5

12:45 pm-5:08 pm

Nonstop3h 23m

Houston George Bush Intcntl

Tue 9/8

6:00 am-2:56 pm

1 stop9h 56m

$319
Quickest round-trip

BozemanHouston

BZN - IAH

BZNIAH

Bozeman Gallatin Field

Sat 9/5

3:15 pm-9:38 pm

1 stop5h 23m

Houston George Bush Intcntl

Fri 9/18

6:35 pm-11:59 pm

1 stop6h 24m

$329

BillingsHouston

BIL - IAH

BILIAH

Billings Logan Intl

Sat 8/22

6:15 am-1:59 pm

1 stop6h 44m

Houston George Bush Intcntl

Mon 8/31

5:50 pm-10:37 pm

1 stop5h 47m

$340

BillingsHouston

BIL - IAH

BILIAH

Billings Logan Intl

Thu 5/21

4:10 pm-11:59 pm

1 stop6h 49m

Houston George Bush Intcntl

Mon 5/25

5:15 am-9:35 am

1 stop5h 20m

$349

BillingsHouston

BIL - IAH

BILIAH

Billings Logan Intl

Sat 8/29

6:05 am-5:14 pm

1 stop10h 09m

Houston George Bush Intcntl

Wed 9/2

2:34 pm-11:29 pm

1 stop9h 55m

$374

BillingsHouston

BIL - IAH

BILIAH

Billings Logan Intl

Sat 8/29

6:05 am-5:14 pm

1 stop10h 09m

Houston George Bush Intcntl

Wed 9/2

2:34 pm-11:29 pm

1 stop9h 55m

$375

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Montana 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 month to fly to Houston George Bush Intcntl Airport?

The month of March is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Montana, with most prices found around $293. If you are unable to visit Houston George Bush Intcntl Airport during the month of March, then departing from Montana during the month January is also very affordable. Most momondo users find prices during this month for around $321.

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

The cheapest day to depart from Montana to Houston George Bush Intcntl Airport is on a Monday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Monday will often find tickets for as low as $394. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Sunday is $509.

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

Our data shows that the cheapest Montana to Houston George Bush Intcntl Airport flights are usually those with departure times at noon. Our users have found flights to Houston George Bush Intcntl Airport at noon for as low as $433. Try not to purchase tickets in the morning because they tend to be around $509. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Montana to Houston George Bush Intcntl flight route?

Fly from Bozeman Gallatin Field to Houston George Bush Intcntl for the best Montana - Houston George Bush Intcntl flight prices

What cabin class options are available on Montana to Houston George Bush Intcntl flights?

There are 3 cabin classes available to choose from on Montana to Houston George Bush Intcntl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 40% on your flight if you consider stops on a Montana to Houston George Bush Intcntl Airport flight.

Cheap Montana to Houston George Bush Intcntl Airport flight deals and tips

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

Fastest flight time

5h 14m

Direct flights

Mon and Sun
The fastest flight from Montana to Houston George Bush Intcntl Airport takes 5h 14m
Direct flights go from Montana to Houston George Bush Intcntl Airport on Monday and Sunday. There are no airlines offering direct flights.
Search flight deals

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

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

    Prices for flights from Montana to Houston George Bush Intcntl Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana 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 you'll need for your trip to Houston George Bush Intcntl 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 Houston George Bush Intcntl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Montana to Houston George Bush Intcntl Airport?

Best airlines flying from Montana to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Montana to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $147Free CancellationRating
7.9
8,405 reviews
Search Delta flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,581 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $303Free CancellationRating
7.9
12,234 reviews
Search Alaska 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
Spring
Cypress
Montgomery
Jersey Village
Tomball
Livingston

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montana to Houston for you.

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

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

How can momondo help me find flights from Montana to Houston?

momondo helps you find the best flight between Montana and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Houston from Montana are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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