$216+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MSO
Sep 4 — Sep 111
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Missoula with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Missoula
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Best
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Cheapest flights from Boston to MissoulaExplore 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 August 5, 2026.
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 August 5, 2026.
This Delta deal was found by Cheapflights users on 8/4. 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 11/43:15 pm -
1 stop6h 39m
Wed 11/111:25 pm -
1 stop8h 34m
Deal found 8/4![Delta logo]()
$431
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Tue 11/1012:00 pm -
2 stops11h 47m
Tue 11/172:37 pm -
1 stop7h 13m
Deal found 8/3![United Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 8/295:51 am -
1 stop8h 44m
Tue 9/11:18 pm -
1 stop7h 32m
Deal found 7/31![American Airlines logo]()
$437
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/246:00 am -
2 stops12h 20m
Tue 10/272:37 pm -
1 stop7h 13m
Deal found 8/3![United Airlines logo]()
$442
This Delta deal was found by Cheapflights users on 8/2. 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.
Sun 9/610:20 am -
2 stops15h 27m
Wed 9/166:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Tue 11/107:10 am -
1 stop10h 24m
Sat 11/141:55 pm -
1 stop8h 04m
Deal found 8/4![Alaska Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 8/3. 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 9/166:05 am -
1 stop8h 32m
Fri 9/256:17 pm -
1 stop10h 13m
Deal found 8/3![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 8/2. 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 9/99:10 am -
2 stops17h 08m
Wed 9/166:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 8/2. 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.
Sun 9/610:20 am -
2 stops15h 27m
Sat 9/196:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$462
This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 9/1510:20 am -
2 stops15h 22m
Sat 9/193:35 pm -
1 stop6h 24m
Deal found 8/1![Delta logo]()
$466
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 11/612:41 pm -
1 stop9h 34m
Sun 11/81:10 pm -
1 stop8h 25m
Deal found 8/1![American Airlines logo]()
$469
Best flights from Boston to MissoulaDiscover carefully curated flight deals from Boston to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
Discover carefully curated flight deals from Boston to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
This Delta deal was found by Cheapflights users on 8/5. 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 9/236:05 am -
1 stop8h 32m
Wed 9/306:17 pm -
1 stop10h 13m
Deal found 8/5![Delta logo]()
$431
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/246:00 am -
1 stop7h 24m
Tue 10/272:37 pm -
1 stop7h 13m
Deal found 8/3![United Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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.
Sat 9/127:12 am -
1 stop10h 05m
Sat 9/197:00 am -
2 stops21h 09m
Deal found 8/2![Alaska Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/269:35 am -
1 stop8h 45m
Mon 8/316:15 am -
2 stops11h 04m
Deal found 8/4![United Airlines logo]()
$542
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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.
Tue 9/297:12 am -
1 stop10h 05m
Sat 10/31:06 pm -
2 stops16h 20m
Deal found 8/2![Alaska Airlines logo]()
$547
This Delta deal was found by Cheapflights users on 8/2. 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 9/96:00 am -
2 stops20h 18m
Sat 9/193:35 pm -
2 stops15h 05m
Deal found 8/2![Delta logo]()
$579
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/2711:00 am -
2 stops12h 31m
Mon 8/317:15 am -
2 stops14h 19m
Deal found 7/31![United Airlines logo]()
$581
This Delta deal was found by Cheapflights users on 8/5. 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 9/236:05 am -
1 stop8h 32m
Wed 9/236:17 pm -
1 stop10h 13m
Deal found 8/5![Delta logo]()
$605
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/1110:03 am -
1 stop14h 58m
Mon 9/147:00 am -
1 stop22h 39m
Deal found 8/4![Alaska Airlines logo]()
$611
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 9/119:33 am -
2 stops13h 58m
Thu 9/176:15 am -
1 stop13h 44m
Deal found 8/1![United Airlines logo]()
$622
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/67:12 am -
1 stop10h 05m
Sun 9/207:00 am -
1 stop14h 54m
Deal found 7/31![Alaska Airlines logo]()
$626
Last-minute flights from Boston to MissoulaDiscover last-minute flight deals from Boston to Missoula. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Missoula. Data last updated August 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/4. 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 8/265:51 am -
1 stop8h 44m
Mon 8/311:25 pm -
1 stop8h 12m
Deal found 8/4![American Airlines logo]()
$481
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 8/285:51 am -
1 stop8h 44m
Tue 9/11:25 pm -
1 stop8h 12m
Deal found 7/31![American Airlines logo]()
$471
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 8/295:51 am -
1 stop8h 44m
Tue 9/11:18 pm -
1 stop7h 32m
Deal found 7/31![American Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 8/2. 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.
Sun 9/610:20 am -
2 stops15h 27m
Wed 9/166:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$443
This Delta deal was found by Cheapflights users on 8/2. 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.
Sun 9/610:20 am -
2 stops15h 27m
Sat 9/196:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$462
This Delta deal was found by Cheapflights users on 8/2. 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 9/99:10 am -
2 stops17h 08m
Wed 9/166:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 8/2. 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 9/96:05 am -
1 stop8h 32m
Sat 9/196:17 pm -
1 stop10h 13m
Deal found 8/2![Delta logo]()
$469
This Delta deal was found by Cheapflights users on 8/1. 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.
Mon 9/146:00 am -
2 stops20h 18m
Tue 9/226:17 pm -
1 stop10h 13m
Deal found 8/1![Delta logo]()
$483
This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 9/1510:20 am -
2 stops15h 22m
Sat 9/193:35 pm -
1 stop6h 24m
Deal found 8/1![Delta logo]()
$466
This Delta deal was found by Cheapflights users on 8/3. 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 9/166:05 am -
1 stop8h 32m
Fri 9/256:17 pm -
1 stop10h 13m
Deal found 8/3![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 8/4. 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 9/236:05 am -
1 stop8h 32m
Wed 9/306:17 pm -
1 stop10h 13m
Deal found 8/4![Delta logo]()
$431
One-way flights from Boston to MissoulaSearch for one-way flight options from Boston to Missoula. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
Search for one-way flight options from Boston to Missoula. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Tue 10/136:10 am -
1 stop9h 05m
Deal found 7/31![American Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:45 pm -
3 stops34h 17m
Deal found 7/31![Multiple Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Mon 8/247:45 am -
1 stop9h 39m
Deal found 8/5![United Airlines logo]()
$246
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Thu 10/155:17 am -
1 stop10h 01m
Deal found 8/3![American Airlines logo]()
$266
This Booking.com deal was found by Cheapflights users on 8/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:03 am -
1 stop9h 47m
Deal found 8/4![Alaska Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/197:45 am -
1 stop9h 39m
Deal found 7/31![United Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Sun 8/165:51 am -
1 stop8h 44m
Deal found 8/3![American Airlines logo]()
$280
This Expedia deal was found by Cheapflights users on 8/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:03 am -
1 stop14h 58m
Deal found 8/5![Alaska Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/2210:38 am -
2 stops12h 53m
Deal found 8/4![United Airlines logo]()
$285
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 August 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $431 (Delta) |
One-way from | $216 (American Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $594 |
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 August 5, 2026.
Use the filters below to find and compare flights from Boston to Missoula that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Wed 9/23
6:05 am-12:37 pm
1 stop8h 32m
Missoula Johnson-Bell Field
Wed 9/30
6:17 pm-6:30 am
1 stop10h 13m
$431
Quickest round-trip
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Sat 10/24
6:00 am-11:24 am
1 stop7h 24m
Missoula Johnson-Bell Field
Tue 10/27
2:37 pm-11:50 pm
1 stop7h 13m
$437
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Sat 9/12
7:12 am-3:17 pm
1 stop10h 05m
Missoula Johnson-Bell Field
Sat 9/19
7:00 am-6:09 am
2 stops21h 09m
$503
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Wed 8/26
9:35 am-4:20 pm
1 stop8h 45m
Missoula Johnson-Bell Field
Mon 8/31
6:15 am-7:19 pm
2 stops11h 04m
$542
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Tue 9/29
7:12 am-3:17 pm
1 stop10h 05m
Missoula Johnson-Bell Field
Sat 10/3
1:06 pm-7:26 am
2 stops16h 20m
$547
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Wed 9/9
6:00 am-12:18 am
2 stops20h 18m
Missoula Johnson-Bell Field
Sat 9/19
3:35 pm-8:40 am
2 stops15h 05m
$579
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Thu 8/27
11:00 am-9:31 pm
2 stops12h 31m
Missoula Johnson-Bell Field
Mon 8/31
7:15 am-11:34 pm
2 stops14h 19m
$581
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Wed 9/23
6:05 am-12:37 pm
1 stop8h 32m
Missoula Johnson-Bell Field
Wed 9/23
6:17 pm-6:30 am
1 stop10h 13m
$605
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Fri 9/11
10:03 am-11:01 pm
1 stop14h 58m
Missoula Johnson-Bell Field
Mon 9/14
7:00 am-7:39 am
1 stop22h 39m
$611
BostonMissoula
BOS Boston Logan Intl - MSO Missoula Johnson-Bell Field
BOSMSO
Boston Logan Intl
Fri 9/11
9:33 am-9:31 pm
2 stops13h 58m
Missoula Johnson-Bell Field
Thu 9/17
6:15 am-9:59 pm
1 stop13h 44m
$622
Showing 1-10 of 16 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BOS-MSO
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?
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 50 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, February is the cheapest month in which you can book a flight from Boston to Missoula (average of $382). Flying from Boston to Missoula in December is currently the most expensive (average of $734). 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.
How much does it cost to fly round-trip from Boston to Missoula?
Airfare is below average for this route at the moment.
Boston to Missoula flights typically cost between $508 and $667 in September.The cheapest round-trip price found within the last 5 days was $431 on Delta (Sep 23-Sep 30).
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 August 5, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited 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.
Entertainment
7.0
Crew
8.5
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Crew
8.5
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Crew
8.5
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Crew
8.5
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Entertainment
7.0
Crew
8.5
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$210 | Average$478 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$350 | Average$618 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$360 | Average$579 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$361 | Average$610 | FlexibilityNo cancel fee | On-time69% |