$245 Cheap Flights from Green Bay (GRB) to Missoula (MSO)

View $245 flight on Thu, Mar 12, 2026Opens in a new window

Popular airlines from Green Bay Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO)

Cheap Flights from Green Bay to Missoula (GRB-MSO)

Prices were available within the past 7 days and start at $245 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Jan 7 - Mon, Jan 12
GRB
Green Bay
MSO
Missoula
$269 Roundtrip, found 21 hours ago
$269
Roundtrip
found 21 hours ago
Select Delta flight, departing Wed, Jan 7 from Green Bay to Missoula, returning Mon, Jan 12, priced at $269 found 21 hours ago
Delta
Wed, Jan 7 - Tue, Jan 13
GRB
Green Bay
MSO
Missoula
$274 Roundtrip, found 21 hours ago
$274
Roundtrip
found 21 hours ago
Select Delta flight, departing Wed, Jan 7 from Green Bay to Missoula, returning Tue, Jan 13, priced at $274 found 21 hours ago
Delta
Tue, Jan 20 - Tue, Feb 3
GRB
Green Bay
MSO
Missoula
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jan 20 from Green Bay to Missoula, returning Tue, Feb 3, priced at $279 found 1 day ago
Delta
Wed, Jan 7 - Wed, Jan 21
GRB
Green Bay
MSO
Missoula
$294 Roundtrip, found 1 day ago
$294
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jan 7 from Green Bay to Missoula, returning Wed, Jan 21, priced at $294 found 1 day ago
Delta
Mon, Dec 1 - Sun, Dec 7
GRB
Green Bay
MSO
Missoula
$299 Roundtrip, found 1 day ago
$299
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Dec 1 from Green Bay to Missoula, returning Sun, Dec 7, priced at $299 found 1 day ago
Delta
Wed, Jan 7 - Mon, Jan 26
GRB
Green Bay
MSO
Missoula
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Jan 7 from Green Bay to Missoula, returning Mon, Jan 26, priced at $319 found 1 day ago
Delta
Wed, Dec 3 - Wed, Dec 10
GRB
Green Bay
MSO
Missoula
$320 Roundtrip, found 1 day ago
$320
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 3 from Green Bay to Missoula, returning Wed, Dec 10, priced at $320 found 1 day ago
Delta
Mon, Dec 1 - Thu, Dec 11
GRB
Green Bay
MSO
Missoula
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Dec 1 from Green Bay to Missoula, returning Thu, Dec 11, priced at $324 found 1 day ago
American Airlines
Thu, Jan 8 - Sat, Jan 10
GRB
Green Bay
MSO
Missoula
$349 Roundtrip, found 22 hours ago
$349
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Thu, Jan 8 from Green Bay to Missoula, returning Sat, Jan 10, priced at $349 found 22 hours ago
United
Sat, Jan 24 - Tue, Feb 3
GRB
Green Bay
MSO
Missoula
$359 Roundtrip, found 1 day ago
$359
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jan 24 from Green Bay to Missoula, returning Tue, Feb 3, priced at $359 found 1 day ago

Frequently asked questions

How much does a flight from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO) cost?
Grab a cheap one-way flight from $245 or cheap return flight from $269 from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO)?
The cheapest month to fly from GRB to MSO is January, when demand is low. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO)?
To find the cheapest airline that'll fly you from GRB to MSO, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO)?
Nonstop flights from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GRB to MSO?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO)?
To arrive at Missoula Intl. Airport (MSO) without delays, select a flight that leaves Austin Straubel Intl. Airport (GRB) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO) last-minute?
Booking your ticket from GRB to MSO right before your journey is generally more expensive. But if you're flexible with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a GRB to MSO flight and hotel package?
Booking a GRB to MSO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Austin Straubel Intl. Airport (GRB) to Missoula Intl. Airport (MSO)?
In most cases, you're able to cancel or reschedule your GRB to MSO flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Origin airport
Austin Straubel Intl.
Destination airport
Missoula Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$268
Distance
1257 mi

Book with confidence

Green Bay to Missoula Flights

The cheapest times to fly from Green Bay to Missoula

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Green Bay to Missoula are during the month of January. You can find some of the cheapest flights from Green Bay to Missoula with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Green Bay to Missoula

Sunday is one of the best days to book for cheap flights from Green Bay to Missoula: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Green Bay to Missoula

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Green Bay to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $245 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Green Bay to Missoula flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Green Bay to Missoula airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Green Bay to Missoula Flights

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*Available to One Key members.