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$155+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MSO
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 October or August, booked 24 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap 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 July 29, 2025.

Round-trip from

$309
(Delta)

One-way from

$155
(American Airlines)

Popular in

March

Cheapest in

October

Average price

$533
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
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Highest demand for flights based on searches. 5% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 29, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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 9/105:20 pmBOS - MSO
1 stop7h 50mDelta
Wed 9/176:20 pmMSO - BOS
1 stop10h 05mDelta
Deal found 7/29$309
This American Airlines deal was found by Cheapflights users on 7/28. 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 9/241:55 pmBOS - MSO
2 stops11h 23mAmerican Airlines
Wed 10/16:40 amMSO - BOS
2 stops10h 19mAmerican Airlines
Deal found 7/28$319
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 10/87:20 amBOS - MSO
1 stop10h 03mAlaska Airlines
Wed 10/294:12 pmMSO - BOS
1 stop13h 28mAlaska Airlines
Deal found 7/27$340
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 8/176:07 amBOS - MSO
1 stop7h 31mUnited Airlines
Mon 8/1812:40 pmMSO - BOS
2 stops9h 19mUnited Airlines
Deal found 7/28$395

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 July 29, 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

Wed 9/10

5:20 pm-11:10 pm

1 stop7h 50m

Missoula Johnson-Bell Field

Wed 9/17

6:20 pm-6:25 am

1 stop10h 05m

$309

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 9/24

1:55 pm-11:18 pm

2 stops11h 23m

Missoula Johnson-Bell Field

Wed 10/1

6:40 am-6:59 pm

2 stops10h 19m

$319

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Wed 10/8

7:20 am-3:23 pm

1 stop10h 03m

Missoula Johnson-Bell Field

Wed 10/29

4:12 pm-7:40 am

1 stop13h 28m

$340

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sun 8/17

6:07 am-11:38 am

1 stop7h 31m

Missoula Johnson-Bell Field

Mon 8/18

12:40 pm-11:59 pm

2 stops9h 19m

$395

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Thu 9/11

5:36 pm-11:18 pm

1 stop7h 42m

$155

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Fri 8/29

6:05 am-9:37 pm

2 stops17h 32m

$169

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Fri 8/29

4:00 pm-12:27 am

1 stop10h 27m

$210

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sun 8/17

6:07 am-11:38 am

1 stop7h 31m

$231

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sun 8/17

7:30 am-3:17 pm

2 stops33h 47m

$332

BostonMissoula

BOS - MSO

BOSMSO

Boston Logan Intl

Sun 8/10

6:00 pm-11:46 pm

1 stop7h 46m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 July 25, 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, October is the cheapest month in which you can book a flight from Boston to Missoula (average of $365). Flying from Boston 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.

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 July 29, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 38% 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 July 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian 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
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

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

    According to our current data, Delta ($309), American Airlines ($319), and Alaska Airlines ($340) offers the cheapest pricing from Boston to Missoula. These flights start at 44% 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 American Airlines ($155), Hawaiian Airlines ($210), and United Airlines ($231).

  • 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, October is the cheapest month in which you can book a flight from Boston to Missoula (average of $365). Flying from Boston 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.

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$339Average$549FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$360Average$557FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$364Average$511FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$405Average$694FlexibilityNo cancel feeOn-time69%

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