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$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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MSO
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Missoula Johnson-Bell Field are usually found in December or October, booked 24 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/255:20 amBOS - MSO
2 stops12h 50mUnited Airlines
Mon 12/296:00 amMSO - BOS
1 stop7h 35mUnited Airlines
Deal found 12/10$641
This Delta deal was found by Cheapflights users on 12/10. 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 12/243:15 pmBOS - MSO
1 stop7h 25mDelta
Mon 12/2912:38 pmMSO - BOS
1 stop9h 46mDelta
Deal found 12/10$761
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sat 12/207:45 amBOS - MSO
2 stops15h 56mUnited Airlines
Sun 1/46:00 amMSO - BOS
1 stop15h 35mUnited Airlines
Deal found 12/11$778
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/245:20 amBOS - MSO
2 stops18h 21mUnited Airlines
Mon 12/296:00 amMSO - BOS
2 stops25h 19mUnited Airlines
Deal found 12/10$782

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$361
(Delta)

One-way from

$139
(Kiwi.com)

Popular in

March

Cheapest in

December

Average price

$468
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. 7% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 12, 2025.
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

Thu 1/8

5:35 pm-12:29 am

1 stop8h 54m

Missoula Johnson-Bell Field

Thu 1/15

6:18 pm-6:05 am

1 stop9h 47m

$361

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 1/21

7:00 am-3:31 pm

1 stop10h 31m

Missoula Johnson-Bell Field

Wed 1/28

6:23 am-4:20 pm

1 stop7h 57m

$361

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Tue 1/20

4:25 pm-12:28 am

1 stop10h 03m

Missoula Johnson-Bell Field

Tue 1/27

1:25 pm-11:56 pm

1 stop8h 31m

$361

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 1/7

4:25 pm-12:29 am

1 stop10h 04m

Missoula Johnson-Bell Field

Wed 1/14

7:55 am-7:10 pm

1 stop9h 15m

$361

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Thu 1/8

6:00 am-4:05 pm

2 stops12h 05m

Missoula Johnson-Bell Field

Thu 1/15

2:37 pm-11:46 pm

1 stop7h 09m

$366

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 1/21

1:00 pm-8:14 pm

2 stops9h 14m

Missoula Johnson-Bell Field

Wed 1/28

7:55 am-11:50 pm

2 stops13h 55m

$371

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 2/4

6:44 pm-12:23 pm

1 stop19h 39m

Missoula Johnson-Bell Field

Sun 2/8

2:03 pm-11:54 pm

1 stop7h 51m

$401

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Thu 1/15

9:30 am-8:45 pm

2 stops13h 15m

Missoula Johnson-Bell Field

Mon 1/19

1:21 pm-11:44 pm

1 stop8h 23m

$406

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 1/7

12:29 pm-10:03 am

3 stops47h 34m

$139

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 1/7

7:00 am-3:31 pm

1 stop10h 31m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 16 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Missoula flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

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, July is the cheapest month in which you can book a flight from Boston to Missoula (average of $211). Flying from Boston to Missoula in December is currently the most expensive (average of $443). 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.

What is the cheapest time of day to fly from BOS to MSO?

Find hourly flight availability from Boston to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 37% on flights from Boston to Missoula by exploring options for tickets in the evening.

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 December 12, 2025.
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
11,432 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,095 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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?

    Delta, Alaska Airlines, and United Airlines can get you from Boston to Missoula in just under 8h 54m. Your travel time can differ by up to 3h 11m. 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 ($363) offers the cheapest pricing from Boston to Missoula. These flights start at 41% 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, July is the cheapest month in which you can book a flight from Boston to Missoula (average of $211). Flying from Boston to Missoula in December is currently the most expensive (average of $443). 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

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$340Average$548FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$349Average$519FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$363Average$521FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$390Average$623FlexibilityNo cancel feeOn-time69%

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