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Cheap flights from Montana to Houston from $128

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 8/10. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montana to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:39 pm - 7:02 pm
BZN
-
IAH
28h 23m
1 stop
Multiple Airlines Logo
9:59 pm - 9:36 am
IAH
-
BZN
12h 37m
1 stop
$234Multiple Airlines
Wed, Oct 7 - Sat, Oct 10
Multiple Airlines Logo
4:51 pm - 12:27 pm
BZN
-
IAH
18h 36m
1 stop
Multiple Airlines Logo
1:53 pm - 4:06 pm
IAH
-
BZN
27h 13m
1 stop
$255Multiple Airlines
Sun, Aug 16 - Wed, Aug 26
Multiple Airlines Logo
4:51 pm - 1:59 pm
BZN
-
IAH
44h 08m
2 stops
Multiple Airlines Logo
8:43 pm - 4:01 pm
IAH
-
BZN
20h 18m
1 stop
$259Multiple Airlines
Sun, Aug 9 - Wed, Aug 12
Multiple Airlines Logo
3:46 pm - 1:59 pm
BZN
-
IAH
21h 13m
1 stop
Multiple Airlines Logo
8:43 pm - 4:01 pm
IAH
-
BZN
20h 18m
1 stop
$263Multiple Airlines
Fri, Aug 7 - Wed, Aug 12
Delta Logo
12:50 pm - 9:36 pm
HLN
-
IAH
7h 46m
1 stop
Delta Logo
7:50 am - 12:24 pm
IAH
-
HLN
5h 34m
1 stop
$329Delta
Wed, Jan 6 - Wed, Jan 20
Alaska Airlines Logo
6:14 am - 5:13 pm
BIL
-
IAH
9h 59m
1 stop
Alaska Airlines Logo
2:34 pm - 11:29 pm
IAH
-
BIL
9h 55m
1 stop
$329Alaska Airlines
Sat, Sep 26 - Wed, Sep 30
Delta Logo
12:50 pm - 9:36 pm
HLN
-
IAH
7h 46m
1 stop
Delta Logo
1:15 pm - 10:41 pm
IAH
-
HLN
10h 26m
2 stops
$334Delta
Wed, Jan 6 - Wed, Jan 20
United Airlines Logo
2:37 pm - 10:59 pm
GTF
-
IAH
7h 22m
1 stop
United Airlines Logo
3:00 pm - 9:22 pm
IAH
-
GTF
7h 22m
1 stop
$338United Airlines
Thu, Oct 22 - Sat, Oct 24
Alaska Airlines Logo
2:03 pm - 11:59 pm
FCA
-
IAH
8h 56m
1 stop
Alaska Airlines Logo
6:09 am - 12:21 pm
IAH
-
FCA
7h 12m
1 stop
$349Alaska Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:29 pm - 10:56 pm
BIL
-
IAH
7h 27m
1 stop
United Airlines Logo
5:15 am - 9:41 am
IAH
-
BIL
5h 26m
1 stop
$365United Airlines
Tue, Aug 11 - Sat, Aug 15

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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 22
BIL10:37 amBillings Logan Intl
9h 03m
2 stops
IAH8:40 pmHouston George Bush Intcntl
Aug 31
IAH4:21 pmHouston George Bush Intcntl
7h 26m
1 stop
BIL10:47 pmBillings Logan Intl
$430
American Airlines
Aug 20
BIL7:00 amBillings Logan Intl
7h 31m
1 stop
IAH3:31 pmHouston George Bush Intcntl
Aug 29
IAH6:00 amHouston George Bush Intcntl
7h 41m
1 stop
BIL12:41 pmBillings Logan Intl
$464
American Airlines
Aug 22
BIL10:37 amBillings Logan Intl
9h 03m
2 stops
IAH8:40 pmHouston George Bush Intcntl
Aug 31
IAH4:21 pmHouston George Bush Intcntl
7h 26m
1 stop
BIL10:47 pmBillings Logan Intl
$491

United Airlines flights from Montana to Houston George Bush Intcntl Airport

Our best United Airlines deals on Montana to Houston George Bush Intcntl Airport flight tickets
United Airlines
Oct 22
GTF2:37 pmGreat Falls
7h 22m
1 stop
IAH10:59 pmHouston George Bush Intcntl
Oct 24
IAH3:00 pmHouston George Bush Intcntl
7h 22m
1 stop
GTF9:22 pmGreat Falls
$338
United Airlines
Aug 7
BZN5:51 pmBozeman Gallatin Field
5h 50m
1 stop
IAH12:41 amHouston George Bush Intcntl
Aug 8
IAH6:09 pmHouston George Bush Intcntl
3h 34m
BZN8:43 pmBozeman Gallatin Field
$355
United Airlines
Oct 9
BZN4:19 pmBozeman Gallatin Field
7h 26m
1 stop
IAH12:45 amHouston George Bush Intcntl
Oct 12
IAH5:15 amHouston George Bush Intcntl
5h 31m
1 stop
BZN9:46 amBozeman Gallatin Field
$360

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 July 17, 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

BozemanHouston

BZN - IAH

BZNIAH

Bozeman Gallatin Field

Wed 10/7

1:39 pm-7:02 pm

1 stop28h 23m

Houston George Bush Intcntl

Sat 10/10

9:59 pm-9:36 am

1 stop12h 37m

$234

BozemanHouston

BZN - IAH

BZNIAH

Bozeman Gallatin Field

Sun 8/16

4:51 pm-12:27 pm

1 stop18h 36m

Houston George Bush Intcntl

Wed 8/26

1:53 pm-4:06 pm

1 stop27h 13m

$255

BozemanHouston

BZN - IAH

BZNIAH

Bozeman Gallatin Field

Sun 8/9

4:51 pm-1:59 pm

2 stops44h 08m

Houston George Bush Intcntl

Wed 8/12

8:43 pm-4:01 pm

1 stop20h 18m

$259

BozemanHouston

BZN - IAH

BZNIAH

Bozeman Gallatin Field

Fri 8/7

3:46 pm-1:59 pm

1 stop21h 13m

Houston George Bush Intcntl

Wed 8/12

8:43 pm-4:01 pm

1 stop20h 18m

$263

HelenaHouston

HLN - IAH

HLNIAH

Helena

Wed 1/6

12:50 pm-9:36 pm

1 stop7h 46m

Houston George Bush Intcntl

Wed 1/20

7:50 am-12:24 pm

1 stop5h 34m

$329

BillingsHouston

BIL - IAH

BILIAH

Billings Logan Intl

Sat 9/26

6:14 am-5:13 pm

1 stop9h 59m

Houston George Bush Intcntl

Wed 9/30

2:34 pm-11:29 pm

1 stop9h 55m

$329

HelenaHouston

HLN - IAH

HLNIAH

Helena

Wed 1/6

12:50 pm-9:36 pm

1 stop7h 46m

Houston George Bush Intcntl

Wed 1/20

1:15 pm-10:41 pm

2 stops10h 26m

$334

Great FallsHouston

GTF - IAH

GTFIAH

Great Falls

Thu 10/22

2:37 pm-10:59 pm

1 stop7h 22m

Houston George Bush Intcntl

Sat 10/24

3:00 pm-9:22 pm

1 stop7h 22m

$338

KalispellHouston

FCA - IAH

FCAIAH

Kalispell Glacier Park

Tue 10/27

2:03 pm-11:59 pm

1 stop8h 56m

Houston George Bush Intcntl

Sat 10/31

6:09 am-12:21 pm

1 stop7h 12m

$349
Quickest round-trip

BillingsHouston

BIL - IAH

BILIAH

Billings Logan Intl

Tue 8/11

2:29 pm-10:56 pm

1 stop7h 27m

Houston George Bush Intcntl

Sat 8/15

5:15 am-9:41 am

1 stop5h 26m

$365

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 $119. If you are unable to visit Houston George Bush Intcntl Airport during the month of March, then departing from Montana during the month August is also very affordable. Most momondo users find prices during this month for around $147.

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 Thursday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Thursday is $505.

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 $479. 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 Kalispell Glacier Park 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 Airport flights?

There are 2 cabin classes available to choose from on Montana to Houston George Bush Intcntl Airport 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 12% 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

3h 21m

Direct flights

Mon, Sat and Sun
The fastest flight from Montana to Houston George Bush Intcntl Airport takes 3h 21m
Direct flights go from Montana to Houston George Bush Intcntl Airport on Monday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
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 $169Free CancellationRating
7.8
8,472 reviews
Search Delta flights
Alaska AirlinesPriceFrom $215Free CancellationRating
7.9
12,663 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,816 reviews
Search American Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,994 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
Humble
Conroe
Spring
Montgomery
Cypress
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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