$128 Cheap Flights from Boise (BOI) to Missoula (MSO)

View $128 flight on Wed, Dec 24, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Missoula Intl. Airport (MSO)

Cheap Flights from Boise to Missoula (BOI-MSO)

Prices were available within the past 7 days and start at $128 for one-way flights and $222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
BOI
Boise
MSO
Missoula
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Boise to Missoula, returning Sat, Dec 13, priced at $222 found 2 days ago
Hawaiian Airlines
Sat, Jan 24 - Sat, Feb 14
BOI
Boise
MSO
Missoula
$228 Roundtrip, found 5 days ago
$228
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Sat, Jan 24 from Boise to Missoula, returning Sat, Feb 14, priced at $228 found 5 days ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
BOI
Boise
MSO
Missoula
$232 Roundtrip, found 2 days ago
$232
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Boise to Missoula, returning Sat, Dec 13, priced at $232 found 2 days ago
Delta
Wed, Dec 10 - Tue, Dec 16
BOI
Boise
MSO
Missoula
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Dec 10 from Boise to Missoula, returning Tue, Dec 16, priced at $234 found 3 days ago
Hawaiian Airlines
Wed, Dec 3 - Sat, Dec 6
BOI
Boise
MSO
Missoula
$242 Roundtrip, found 1 hour ago
$242
Roundtrip
found 1 hour ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Boise to Missoula, returning Sat, Dec 6, priced at $242 found 1 hour ago
Delta
Sat, Dec 13 - Mon, Dec 15
BOI
Boise
MSO
Missoula
$244 Roundtrip, found 3 days ago
$244
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Dec 13 from Boise to Missoula, returning Mon, Dec 15, priced at $244 found 3 days ago
Hawaiian Airlines
Wed, Jan 7 - Tue, Jan 13
BOI
Boise
MSO
Missoula
$248 Roundtrip, found 2 hours ago
$248
Roundtrip
found 2 hours ago
Select Hawaiian Airlines flight, departing Wed, Jan 7 from Boise to Missoula, returning Tue, Jan 13, priced at $248 found 2 hours ago
Alaska Airlines
Tue, Dec 9 - Sat, Dec 13
BOI
Boise
MSO
Missoula
$252 Roundtrip, found 6 days ago
$252
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Boise to Missoula, returning Sat, Dec 13, priced at $252 found 6 days ago
United
Sun, Jan 25 - Sat, Jan 31
BOI
Boise
MSO
Missoula
$495 Roundtrip, found 5 days ago
$495
Roundtrip
found 5 days ago
Select United flight, departing Sun, Jan 25 from Boise to Missoula, returning Sat, Jan 31, priced at $495 found 5 days ago
American Airlines
Mon, Jan 5 - Thu, Jan 8
BOI
Boise
MSO
Missoula
$671 Roundtrip, found 4 days ago
$671
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Jan 5 from Boise to Missoula, returning Thu, Jan 8, priced at $671 found 4 days ago

Find the cheapest month to fly from Boise (BOI) to Missoula (MSO)

April is typically the cheapest month to fly

From $174 - $441 per traveler.

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Missoula Intl. Airport (MSO) cost?
Get a cheap one-way flight from $128 or cheap return flight from $222 from Boise Airport (BOI) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Missoula Intl. Airport (MSO)?
December is the least expensive month to fly from BOI to MSO. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Boise Airport (BOI) to Missoula Intl. Airport (MSO)?
To find the cheapest airline that'll fly you from BOI to MSO, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Boise Airport (BOI) to Missoula Intl. Airport (MSO)?
Nonstop flights from Boise Airport (BOI) to Missoula Intl. Airport (MSO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOI to MSO?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Missoula Intl. Airport (MSO)?
To avoid potential delays on the Boise Airport (BOI) to Missoula Intl. Airport (MSO) route, travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**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 Boise Airport (BOI) to Missoula Intl. Airport (MSO) last-minute?
Last-minute bookings from BOI to MSO are generally more expensive. For the lowest rates, start looking for flights early. That said, if you're flexible with your travel plans, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a BOI to MSO flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOI to MSO flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Missoula Intl. Airport (MSO)?
If you reserved your BOI to MSO flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Boise
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$222
Distance
253 mi

Book with confidence

Boise to Missoula Flights

The cheapest times to fly from Boise 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 Boise to Missoula are during the month of December. You can find some of the cheapest flights from Boise to Missoula with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Missoula

Sunday is one of the best days to book for cheap flights from Boise 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 Boise 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 Boise to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $128 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 Boise 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 Boise 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.

 

Boise to Missoula Flights

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*Available to One Key members.