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Missoula

$139+ Cheap flights from Boston to Missoula (BOS - MSO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MSO
Feb 25 — Mrz 41
Mi 2/25
Mi 3/4
1 adult, Economy
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Cheap flight deals from Boston to Missoula

Cheapest flights from Boston to Missoula
Explore the most affordable flight options available from Boston to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Januar 26, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 3/47:00 am
BOS
-
MSO
1 stop18h 59m
Alaska Airlines
Di 3/101:39 pm
MSO
-
BOS
1 stop8h 20m
Alaska Airlines
Deal found 1/25$277
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Mi 3/43:09 pm
BOS
-
MSO
1 stop8h 48m
United Airlines
Di 3/106:15 am
MSO
-
BOS
2 stops13h 26m
United Airlines
Deal found 1/25$282
This Alaska Airlines deal was found by Cheapflights users on 1/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 3/147:00 am
BOS
-
MSO
1 stop18h 59m
Alaska Airlines
Mi 3/181:53 pm
MSO
-
BOS
1 stop8h 06m
Alaska Airlines
Deal found 1/24$297
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sa 3/711:02 am
BOS
-
MSO
2 stops12h 55m
United Airlines
Di 3/102:35 pm
MSO
-
BOS
1 stop7h 18m
United Airlines
Deal found 1/26$308
This American Airlines deal was found by Cheapflights users on 1/25. 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.
Mi 3/116:30 am
BOS
-
MSO
1 stop8h 20m
American Airlines
Mo 3/161:20 pm
MSO
-
BOS
1 stop8h 45m
American Airlines
Deal found 1/25$319
This Delta deal was found by Cheapflights users on 1/25. 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.
Di 3/242:50 pm
BOS
-
MSO
2 stops11h 34m
Delta
Do 3/266:04 pm
MSO
-
BOS
1 stop10h 06m
Delta
Deal found 1/25$334
This Alaska Airlines deal was found by Cheapflights users on 1/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 3/77:00 am
BOS
-
MSO
1 stop18h 59m
Alaska Airlines
Di 3/101:39 pm
MSO
-
BOS
1 stop8h 20m
Alaska Airlines
Deal found 1/24$337
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sa 2/217:00 am
BOS
-
MSO
1 stop8h 32m
United Airlines
Sa 2/282:44 pm
MSO
-
BOS
2 stops13h 08m
United Airlines
Deal found 1/25$341

Find flight deals from Boston to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 Januar 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(Alaska Airlines)

One-way from

$139
(American Airlines)

Popular in

May

Cheapest in

January

Average price

$440
Provider with most accurate pricing for Boston Logan Intl-Missoula Johnson-Bell Field flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Missoula Johnson-Bell Field flights.
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From Boston Logan Intl to Missoula Johnson-Bell Field
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One-way flight from Boston Logan Intl to Missoula Johnson-Bell Field
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 Januar 26, 2026.
Use the filters below to find and compare flights from Boston to Missoula that are best for you.

Fly from

Boston

Fly to

Missoula

Route

Depart

Return

Price

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Mi 3/4

3:09 pm-9:57 pm

1 stop8h 48m

Missoula Johnson-Bell Field

Di 3/10

6:15 am-9:41 pm

2 stops13h 26m

$282

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sa 3/14

7:00 am-11:59 pm

1 stop18h 59m

Missoula Johnson-Bell Field

Mi 3/18

1:53 pm-11:59 pm

1 stop8h 06m

$297

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sa 3/7

11:02 am-9:57 pm

2 stops12h 55m

Missoula Johnson-Bell Field

Di 3/10

2:35 pm-11:53 pm

1 stop7h 18m

$308

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Mi 3/11

6:30 am-12:50 pm

1 stop8h 20m

Missoula Johnson-Bell Field

Mo 3/16

1:20 pm-12:05 am

1 stop8h 45m

$319

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Di 3/24

2:50 pm-12:24 am

2 stops11h 34m

Missoula Johnson-Bell Field

Do 3/26

6:04 pm-6:10 am

1 stop10h 06m

$334

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sa 3/7

7:00 am-11:59 pm

1 stop18h 59m

Missoula Johnson-Bell Field

Di 3/10

1:39 pm-11:59 pm

1 stop8h 20m

$337

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Fr 2/20

4:36 pm-12:59 pm

1 stop22h 23m

Missoula Johnson-Bell Field

Mi 2/25

6:23 am-4:36 pm

1 stop8h 13m

$359

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Mi 3/25

6:00 am-4:08 pm

2 stops12h 08m

$144

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Di 3/24

6:44 pm-12:24 am

1 stop7h 40m

$149

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Mo 3/23

6:44 pm-12:24 am

1 stop7h 40m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 18 results
1
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Compare providers for flights from Boston to Missoula

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Missoula in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Missoula flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Missoula flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Missoula flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Missoula flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Missoula flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Missoula

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

How far ahead should I book a flight from Boston to Missoula?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Missoula. Price data was last updated on January 23, 2026.

The price you pay for your flight from Boston to Missoula may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Missoula?

Currently, May is the cheapest month in which you can book a flight from Boston to Missoula (average of $230). Flying from Boston to Missoula in December is currently the most expensive (average of $440). 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 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 Januar 26, 2026.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Boston 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.
Alaska Airlines
8.0
Very good
11,792 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,792 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,111 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,199 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,189 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

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

  • How long is the flight from Boston to Missoula?

    United Airlines, Alaska Airlines, and American Airlines can get you from Boston to Missoula in just under 8h 20m. Your travel time can differ by up to 10h 39m. The distance from Boston to Missoula is about 2113 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to Missoula round-trip?

    According to our current data, Delta ($308), Alaska Airlines ($349), and American Airlines ($360) offers the cheapest pricing from Boston to Missoula. These flights start at 40% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Missoula one-way?

    The cheapest airlines for a one-way flight from Boston to Missoula are United Airlines ($163), American Airlines ($163), and Delta ($170).

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

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

  • How can I find direct flights from Boston to Missoula?

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

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

    Yes. Cheapflights offers flight deals from Boston 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 Boston to Missoula?

    Currently, May is the cheapest month in which you can book a flight from Boston to Missoula (average of $230). Flying from Boston to Missoula in December is currently the most expensive (average of $440). 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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Top 4 airlines flying from Boston to Missoula

Discover the top 4 airlines that operate flights from Boston 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 Januar 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$521FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$349Average$478FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$360Average$528FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$380Average$613FlexibilityNo cancel feeOn-time69%

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