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$439+ Cheap flights from Green Bay to Missoula (GRB - MSO)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — MSO
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Green Bay to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Missoula (MSO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$439
(American Airlines)
From Green Bay Austin-Straubel to Missoula Johnson-Bell Field
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Find flight deals from Green Bay to Missoula

Cheapest flights from Green Bay to Missoula
Explore the most affordable flight options available from Green Bay to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:08 amGRB - MSO
2 stops14h 38mAmerican Airlines
Sat 12/137:00 amMSO - GRB
2 stops9h 37mAmerican Airlines
Deal found 8/12$439
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:35 pmGRB - MSO
1 stop7h 43mAmerican Airlines
Mon 9/291:51 pmMSO - GRB
2 stops18h 25mAmerican Airlines
Deal found 8/13$493
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:00 pmGRB - MSO
1 stop5h 12mDelta
Sat 12/138:00 amMSO - GRB
1 stop26h 14mDelta
Deal found 8/13$523
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:15 amGRB - MSO
3 stops16h 03mUnited Airlines
Sat 12/135:20 pmMSO - GRB
2 stops15h 47mUnited Airlines
Deal found 8/13$791

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to Missoula 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Green Bay to Missoula that are best for you.

Fly from

Green Bay

Fly to

Missoula

Route

Depart

Return

Price

Green BayMissoula

GRB - MSO

GRBMSO

Green Bay Austin-Straubel

Wed 12/10

6:08 am-7:46 pm

2 stops14h 38m

Missoula Johnson-Bell Field

Sat 12/13

7:00 am-5:37 pm

2 stops9h 37m

$439

Green BayMissoula

GRB - MSO

GRBMSO

Green Bay Austin-Straubel

Sat 9/20

4:35 pm-11:18 pm

1 stop7h 43m

Missoula Johnson-Bell Field

Mon 9/29

1:51 pm-9:16 am

2 stops18h 25m

$493

Green BayMissoula

GRB - MSO

GRBMSO

Green Bay Austin-Straubel

Wed 12/10

4:00 pm-8:12 pm

1 stop5h 12m

Missoula Johnson-Bell Field

Sat 12/13

8:00 am-11:14 am

1 stop26h 14m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Green Bay to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula 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.

Reviews of airlines servicing Missoula

Get insights into the airlines that provide service to Missoula. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missoula. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown American Airlines from Green Bay to Missoula. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.5

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Boarding

7.5

Comfort

7.2

Food

6.5

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

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

  • What is the cheapest airline to fly from Green Bay to Missoula round-trip?

    According to our current data, American Airlines ($313), offers the cheapest pricing from Green Bay to Missoula.

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

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

  • How can I find direct flights from Green Bay to Missoula?

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

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

    Yes. Cheapflights offers flight deals from Green Bay to Missoula 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 Missoula?

    Currently, October is the cheapest month in which you can book a flight from Green Bay to Missoula (average of $365). Flying from Green Bay to Missoula in March is currently the most expensive (average of $506). 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.

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Top airline flying from Green Bay to Missoula

Discover the top airline that operate flights from Green Bay to Missoula. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$313Average$538FlexibilityNo cancel feeOn-time71%

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