How long is the flight from Green Bay to Montana?

United Airlines and Delta can get you from Green Bay to Montana in just under 4h 56m. Your travel time can differ by up to 4h 53m. The distance from Green Bay to Montana is about 1257 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What are the most popular routes from Green Bay to Montana?

Most travelers choose Green Bay Austin-Straubel - Bozeman Gallatin Field, Green Bay Austin-Straubel - Cody E.E. Faust or Green Bay Austin-Straubel - Kalispell Glacier Park when deciding on the best route from Green Bay to Montana.

What are the most popular airlines that fly from Green Bay to Montana?

Before booking your flight from Green Bay to Montana check out the most popular airlines for this route: American Airlines, United Airlines or Delta.

What is the cheapest time of day to fly from GRB to MT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Green Bay to Montana as you normally would.

What airport do you fly from for flights from Green Bay to Montana?

Green Bay Austin-Straubel (GRB) is the airport you will fly out of if you book a flight from Green Bay to Montana. It is only a 5.9 mi journey to Austin-Straubel (GRB) from Green Bay’s city center.

Can I find deals for flights from Green Bay to Montana that include hotel bookings?

Yes. In addition to deals on Green Bay to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Green Bay to Montana?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Montana.

Can I find deals for business class flights from Green Bay to Montana?

Yes. Cheapflights offers flight deals from Green Bay to Montana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$350+ Flights from Green Bay to Montana

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Cheap flight deals from Green Bay to Montana

Cheapest flights from Green Bay to Montana
Explore the most affordable flight options available from Green Bay to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Wed 12/317:00 amGRB - BZN

1 stop6h 44mAmerican Airlines

Fri 1/21:34 pmBZN - GRB

1 stop7h 27mAmerican Airlines

Deal found 12/27

$864

Wed 12/3110:44 amGRB - BZN

2 stops11h 24mUnited Airlines

Fri 1/27:15 amBZN - GRB

1 stop6h 52mUnited Airlines

Deal found 12/27

$890

Best flights from Green Bay to Montana
Discover carefully curated flight deals from Green Bay to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Sat 1/176:31 amGRB - BZN

2 stops9h 49mUnited Airlines

Sat 1/2412:35 pmBZN - GRB

1 stop7h 56mUnited Airlines

Deal found 12/26

$350

Mon 1/124:18 pmGRB - MSO

1 stop4h 56mDelta

Fri 1/167:55 amMSO - GRB

1 stop6h 43mDelta

Deal found 12/27

$431

Tue 1/276:31 amGRB - HLN

2 stops8h 10mUnited Airlines

Sat 1/316:15 amHLN - GRB

2 stops9h 32mUnited Airlines

Deal found 12/25

$369

Sat 1/242:39 pmGRB - BZN

1 stop22h 05mUnited Airlines

Wed 1/286:15 amBZN - GRB

2 stops9h 32mUnited Airlines

Deal found 12/25

$419

Mon 6/1510:50 amGRB - FCA

2 stops13h 56mDelta

Sat 6/271:35 pmFCA - GRB

2 stops25h 58mDelta

Deal found 12/26

$506

Fri 6/55:18 pmGRB - BZN

1 stop6h 00mUnited Airlines

Tue 6/98:30 amBZN - GRB

1 stop5h 48mUnited Airlines

Deal found 12/26

$429

Tue 6/166:45 amGRB - FCA

1 stop8h 00mDelta

Fri 6/261:35 pmFCA - GRB

2 stops25h 58mDelta

Deal found 12/26

$543

Sat 2/1410:33 amGRB - COD

2 stops13h 12mUnited Airlines

Wed 2/181:45 pmCOD - GRB

2 stops23h 25mUnited Airlines

Deal found 12/26

$452

Sat 1/242:39 pmGRB - FCA

2 stops32h 20mUnited Airlines

Wed 1/286:00 amFCA - GRB

2 stops9h 47mUnited Airlines

Deal found 12/27

$457

Sun 6/217:00 amGRB - FCA

2 stops17h 46mDelta

Fri 6/261:35 pmFCA - GRB

2 stops25h 58mDelta

Deal found 12/26

$584

Sat 1/243:42 pmGRB - BTM

2 stops32h 03mUnited Airlines

Wed 1/289:14 amBTM - GRB

2 stops11h 17mUnited Airlines

Deal found 12/26

$459

Fri 6/1911:53 amGRB - FCA

1 stop12h 53mDelta

Tue 6/236:59 amFCA - GRB

1 stop7h 33mDelta

Deal found 12/26

$607

Tue 2/102:39 pmGRB - COD

2 stops9h 05mUnited Airlines

Sat 2/146:30 amCOD - GRB

2 stops9h 23mUnited Airlines

Deal found 12/26

$460

Fri 6/1911:53 amGRB - FCA

1 stop12h 53mDelta

Mon 6/226:59 amFCA - GRB

1 stop7h 33mDelta

Deal found 12/26

$607

Tue 1/2710:42 amGRB - GTF

2 stops12h 11mUnited Airlines

Sat 1/312:29 pmGTF - GRB

2 stops27h 34mUnited Airlines

Deal found 12/25

$466

Tue 6/1610:50 amGRB - FCA

2 stops13h 56mDelta

Tue 6/236:59 amFCA - GRB

1 stop7h 33mDelta

Deal found 12/26

$620

Sat 1/242:39 pmGRB - MSO

2 stops23h 56mUnited Airlines

Wed 1/286:00 amMSO - GRB

2 stops9h 47mUnited Airlines

Deal found 12/25

$473

Mon 6/1510:50 amGRB - FCA

2 stops13h 56mDelta

Tue 6/231:35 pmFCA - GRB

2 stops25h 58mDelta

Deal found 12/26

$635

Mon 1/125:24 pmGRB - FCA

2 stops29h 35mUnited Airlines

Fri 1/166:00 amFCA - GRB

2 stops31h 02mUnited Airlines

Deal found 12/27

$639

Mon 1/1210:42 amGRB - MSO

2 stops12h 09mUnited Airlines

Fri 1/166:00 amMSO - GRB

3 stops12h 03mUnited Airlines

Deal found 12/27

$1,140

Last-minute flights from Green Bay to Montana
Discover last-minute flight deals from Green Bay to Montana. Data last updated December 28, 2025 and is based on user searches.

Wed 12/317:00 amGRB - BZN

1 stop6h 44mAmerican Airlines

Fri 1/21:34 pmBZN - GRB

1 stop7h 27mAmerican Airlines

Deal found 12/27

$864

Wed 12/3110:44 amGRB - BZN

2 stops11h 24mUnited Airlines

Fri 1/27:15 amBZN - GRB

1 stop6h 52mUnited Airlines

Deal found 12/27

$890

Mon 1/124:18 pmGRB - MSO

1 stop4h 56mDelta

Fri 1/167:55 amMSO - GRB

1 stop6h 43mDelta

Deal found 12/27

$431

Mon 1/125:24 pmGRB - FCA

2 stops29h 35mUnited Airlines

Fri 1/166:00 amFCA - GRB

2 stops31h 02mUnited Airlines

Deal found 12/27

$639

Mon 1/127:00 amGRB - FCA

2 stops11h 14mDelta

Fri 1/163:23 pmFCA - GRB

1 stop5h 12mDelta

Deal found 12/27

$659

Sat 1/176:31 amGRB - BZN

2 stops9h 49mUnited Airlines

Sat 1/2412:35 pmBZN - GRB

1 stop7h 56mUnited Airlines

Deal found 12/26

$350

Sat 1/242:39 pmGRB - BZN

1 stop22h 05mUnited Airlines

Wed 1/286:15 amBZN - GRB

2 stops9h 32mUnited Airlines

Deal found 12/25

$419

Sat 1/242:39 pmGRB - FCA

2 stops32h 20mUnited Airlines

Wed 1/286:00 amFCA - GRB

2 stops9h 47mUnited Airlines

Deal found 12/27

$457

Sat 1/243:42 pmGRB - BTM

2 stops32h 03mUnited Airlines

Wed 1/289:14 amBTM - GRB

2 stops11h 17mUnited Airlines

Deal found 12/26

$459

Sat 1/242:39 pmGRB - MSO

2 stops23h 56mUnited Airlines

Wed 1/286:00 amMSO - GRB

2 stops9h 47mUnited Airlines

Deal found 12/25

$473

Tue 1/276:31 amGRB - HLN

2 stops8h 10mUnited Airlines

Sat 1/316:15 amHLN - GRB

2 stops9h 32mUnited Airlines

Deal found 12/25

$369

Tue 1/2710:42 amGRB - GTF

2 stops12h 11mUnited Airlines

Sat 1/312:29 pmGTF - GRB

2 stops27h 34mUnited Airlines

Deal found 12/25

$466

Find flight deals from Green Bay to Montana

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$350 (United Airlines)
Popular in	February
Cheapest in	November
Average price	$635

Provider with most accurate pricing for Green Bay Austin-Straubel-Bozeman Gallatin Field flight deals.

Search Deals

Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Bozeman Gallatin Field flights.

Search Deals

From Green Bay Austin-Straubel to Montana

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Green BayBozeman

GRB - BZN

GRBBZN

Green Bay Austin-Straubel

Sat 1/17

6:31 am-3:20 pm

2 stops9h 49m

Bozeman Gallatin Field

Sat 1/24

12:35 pm-9:31 pm

1 stop7h 56m

$350

Green BayHelena

GRB - HLN

GRBHLN

Green Bay Austin-Straubel

Tue 1/27

6:31 am-1:41 pm

2 stops8h 10m

Helena

Sat 1/31

6:15 am-4:47 pm

2 stops9h 32m

$369

Green BayBozeman

GRB - BZN

GRBBZN

Green Bay Austin-Straubel

Sat 1/24

2:39 pm-11:44 am

1 stop22h 05m

Bozeman Gallatin Field

Wed 1/28

6:15 am-4:47 pm

2 stops9h 32m

$419

Green BayBozeman

GRB - BZN

GRBBZN

Green Bay Austin-Straubel

Fri 6/5

5:18 pm-10:18 pm

1 stop6h 00m

Bozeman Gallatin Field

Tue 6/9

8:30 am-3:18 pm

1 stop5h 48m

$429

Green BayMissoula

GRB - MSO

GRBMSO

Green Bay Austin-Straubel

Mon 1/12

4:18 pm-8:14 pm

1 stop4h 56m

Missoula Johnson-Bell Field

Fri 1/16

7:55 am-3:38 pm

1 stop6h 43m

$431

Green BayCody

GRB - COD

GRBCOD

Green Bay Austin-Straubel

Sat 2/14

10:33 am-10:45 pm

2 stops13h 12m

Cody E.E. Faust

Wed 2/18

1:45 pm-2:10 pm

2 stops23h 25m

$452

Green BayKalispell

GRB - FCA

GRBFCA

Green Bay Austin-Straubel

Sat 1/24

2:39 pm-9:59 pm

2 stops32h 20m

Kalispell Glacier Park

Wed 1/28

6:00 am-4:47 pm

2 stops9h 47m

$457

Green BayButte

GRB - BTM

GRBBTM

Green Bay Austin-Straubel

Sat 1/24

3:42 pm-10:45 pm

2 stops32h 03m

Butte Silver Bow Co

Wed 1/28

9:14 am-9:31 pm

2 stops11h 17m

$459

Green BayCody

GRB - COD

GRBCOD

Green Bay Austin-Straubel

Tue 2/10

2:39 pm-10:44 pm

2 stops9h 05m

Cody E.E. Faust

Sat 2/14

6:30 am-4:53 pm

2 stops9h 23m

$460

Green BayGreat Falls

GRB - GTF

GRBGTF

Green Bay Austin-Straubel

Tue 1/27

10:42 am-9:53 pm

2 stops12h 11m

Great Falls

Sat 1/31

2:29 pm-7:03 pm

2 stops27h 34m

$466

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 20 results

Best time to book a flight from Green Bay to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Green Bay with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to Montana

What is the cheapest month to book a flight from Green Bay to Montana?

Currently, March is the cheapest month in which you can book a flight from Green Bay to Montana (average of $179). Flying from Green Bay to Montana in May is currently the most expensive (average of $320). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Montana

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Green Bay to Montana by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,019 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,113 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,072 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly from for flights from Green Bay to Montana?
Green Bay Austin-Straubel (GRB) is the airport you will fly out of if you book a flight from Green Bay to Montana. It is only a 5.9 mi journey to Austin-Straubel (GRB) from Green Bay’s city center.
How long is the flight from Green Bay to Montana?
United Airlines and Delta can get you from Green Bay to Montana in just under 4h 56m. Your travel time can differ by up to 4h 53m. The distance from Green Bay to Montana is about 1257 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the most popular routes from Green Bay to Montana?
Most travelers choose Green Bay Austin-Straubel - Bozeman Gallatin Field, Green Bay Austin-Straubel - Cody E.E. Faust or Green Bay Austin-Straubel - Kalispell Glacier Park when deciding on the best route from Green Bay to Montana.
Can I find deals for flights from Green Bay to Montana that include hotel bookings?
Yes. In addition to deals on Green Bay to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Green Bay to Montana?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Montana.
Can I find deals for business class flights from Green Bay to Montana?
Yes. Cheapflights offers flight deals from Green Bay to Montana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Green Bay to Montana?
Currently, March is the cheapest month in which you can book a flight from Green Bay to Montana (average of $179). Flying from Green Bay to Montana in May is currently the most expensive (average of $320). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Montana car rentals

Bozeman Gallatin Field Airport car rentals

Kalispell Glacier Park Airport car rentals

Missoula Johnson-Bell Field Airport car rentals

Billings Logan Intl Airport car rentals

Great Falls Airport car rentals

Helena Airport car rentals

Butte Silver Bow Co Airport car rentals

Havre City County Airport car rentals

Bozeman car rentals

Butte car rentals

Kalispell car rentals

Top 3 airlines flying from Green Bay to Montana

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$179	Average$511	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$304	Average$492	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$334	Average$574	FlexibilityNo cancel fee	On-time69%

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$350+ Cheap flights from Green Bay (GRB) to Montana

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Green Bay to Montana with Cheapflights

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Cheap flight deals from Green Bay to Montana

Cheapest flights from Green Bay to MontanaExplore the most affordable flight options available from Green Bay to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Explore the most affordable flight options available from Green Bay to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Find flight deals from Green Bay to Montana

Keep the following information in mind while searching for Green Bay to Montana flight deals. Data was last updated December 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Green Bay to Montana that are best for you.

Best time to book a flight from Green Bay to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Green Bay with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to Montana

What is the cheapest month to book a flight from Green Bay to Montana?

Reviews of airlines servicing Montana

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Green Bay to Montana by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Green Bay to Montana?

How long is the flight from Green Bay to Montana?

What are the most popular routes from Green Bay to Montana?

Can I find deals for flights from Green Bay to Montana that include hotel bookings?

How can I find direct flights from Green Bay to Montana?

Can I find deals for business class flights from Green Bay to Montana?

What is the cheapest month to book a flight from Green Bay to Montana?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Green Bay to Montana

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Green Bay to Montana

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Cheapest flights from Green Bay to Montana
Explore the most affordable flight options available from Green Bay to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.