$160+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — MSO
May 23 — May 301
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
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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 April 23, 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 April 23, 2026.
This Delta deal was found by Cheapflights users on 4/22. 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.
Sat 6/66:10 am
BOS
- MSO
1 stop8h 24m
Delta
Thu 6/183:28 pm
MSO
- BOS
1 stop6h 29m
Delta
Deal found 4/22![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 4/19. 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 6/95:54 pm
BOS
- MSO
1 stop7h 50m
Delta
Tue 6/165:55 am
MSO
- BOS
2 stops8h 36m
Delta
Deal found 4/19![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 4/20. 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 6/25:15 pm
BOS
- MSO
2 stops9h 07m
Delta
Tue 6/165:55 am
MSO
- BOS
2 stops8h 36m
Delta
Deal found 4/20![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 4/20. 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 8/187:10 am
BOS
- MSO
1 stop9h 27m
Delta
Mon 8/243:27 pm
MSO
- BOS
1 stop6h 25m
Delta
Deal found 4/20![Delta logo]()
$421
This American Airlines deal was found by Cheapflights users on 4/20. 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 6/25:05 am
BOS
- MSO
1 stop9h 44m
American Airlines
Tue 6/164:44 pm
MSO
- BOS
1 stop11h 51m
American Airlines
Deal found 4/20![American Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 4/21. 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 9/112:56 pm
BOS
- MSO
2 stops12h 32m
American Airlines
Wed 9/166:43 am
MSO
- BOS
2 stops10h 16m
American Airlines
Deal found 4/21![American Airlines logo]()
$431
This deal was found by Cheapflights users on 4/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:45 pm
BOS
- MSO
1 stop7h 37m
Delta
Fri 6/51:14 pm
MSO
- BOS
1 stop8h 44m
Delta
Deal found 4/20![Delta logo]()
$438
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 8/175:29 am
BOS
- MSO
1 stop8h 47m
American Airlines
Wed 8/265:51 pm
MSO
- BOS
1 stop11h 31m
American Airlines
Deal found 4/22![American Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 4/20. 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 5/132:33 pm
BOS
- MSO
2 stops11h 49m
Delta
Mon 5/186:05 pm
MSO
- BOS
1 stop10h 15m
Delta
Deal found 4/20![Delta logo]()
$443
This Delta deal was found by Cheapflights users on 4/20. 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 8/196:25 pm
BOS
- MSO
1 stop7h 59m
Delta
Tue 8/253:27 pm
MSO
- BOS
1 stop6h 25m
Delta
Deal found 4/20![Delta logo]()
$450
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/296:00 am
BOS
- MSO
1 stop9h 28m
American Airlines
Tue 6/26:45 am
MSO
- BOS
2 stops10h 37m
American Airlines
Deal found 4/22![American Airlines logo]()
$454
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 April 23, 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 April 23, 2026.
This Delta deal was found by Cheapflights users on 4/19. 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.
Fri 9/42:30 pm
BOS
- MSO
2 stops11h 54m
Delta
Sat 9/126:10 pm
MSO
- BOS
1 stop9h 59m
Delta
Deal found 4/19![Delta logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 5/157:11 pm
BOS
- MSO
1 stop19h 05m
Alaska Airlines
Sun 5/177:45 am
MSO
- BOS
1 stop8h 26m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/36:00 am
BOS
- MSO
2 stops12h 04m
United Airlines
Tue 5/56:15 am
MSO
- BOS
2 stops10h 05m
United Airlines
Deal found 4/21![United Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 6/26:00 am
BOS
- MSO
2 stops19h 59m
Alaska Airlines
Sun 6/77:45 am
MSO
- BOS
1 stop8h 26m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$512
This Delta deal was found by Cheapflights users on 4/19. 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.
Fri 5/82:33 pm
BOS
- MSO
2 stops11h 07m
Delta
Tue 5/126:05 pm
MSO
- BOS
1 stop10h 15m
Delta
Deal found 4/19![Delta logo]()
$519
This Delta deal was found by Cheapflights users on 4/20. 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 8/176:25 pm
BOS
- MSO
1 stop7h 59m
Delta
Mon 8/245:45 am
MSO
- BOS
2 stops12h 00m
Delta
Deal found 4/20![Delta logo]()
$524
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/86:42 pm
BOS
- MSO
1 stop19h 46m
Alaska Airlines
Tue 5/121:59 pm
MSO
- BOS
2 stops13h 45m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$536
This Delta deal was found by Cheapflights users on 4/21. 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.
Sat 8/15:55 pm
BOS
- MSO
1 stop7h 49m
Delta
Mon 8/106:10 pm
MSO
- BOS
1 stop9h 59m
Delta
Deal found 4/21![Delta logo]()
$569
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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 6/54:48 pm
BOS
- MSO
1 stop9h 11m
Alaska Airlines
Sun 6/147:03 am
MSO
- BOS
1 stop9h 38m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$601
This Delta deal was found by Cheapflights users on 4/19. 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 6/157:15 am
BOS
- MSO
1 stop9h 23m
Delta
Sat 6/205:55 am
MSO
- BOS
1 stop8h 54m
Delta
Deal found 4/19![Delta logo]()
$606
Last-minute flights from Boston to MissoulaDiscover last-minute flight deals from Boston to Missoula. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Missoula. Data last updated April 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/19. 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 5/46:15 am
BOS
- MSO
1 stop8h 26m
Delta
Fri 5/81:14 pm
MSO
- BOS
1 stop8h 44m
Delta
Deal found 4/19![Delta logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/86:42 pm
BOS
- MSO
1 stop19h 46m
Alaska Airlines
Tue 5/121:59 pm
MSO
- BOS
1 stop15h 13m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$473
This Delta deal was found by Cheapflights users on 4/20. 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 5/132:33 pm
BOS
- MSO
2 stops11h 49m
Delta
Mon 5/186:05 pm
MSO
- BOS
1 stop10h 15m
Delta
Deal found 4/20![Delta logo]()
$443
This Expedia deal was found by Cheapflights users on 4/19. 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.
Wed 5/134:48 pm
BOS
- MSO
1 stop9h 11m
Alaska Airlines
Mon 5/188:02 pm
MSO
- BOS
1 stop9h 39m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 4/22. 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 5/206:10 am
BOS
- MSO
1 stop8h 24m
Delta
Tue 5/266:05 pm
MSO
- BOS
1 stop10h 15m
Delta
Deal found 4/22![Delta logo]()
$479
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 5/226:45 pm
BOS
- MSO
1 stop7h 37m
Delta
Fri 5/293:30 pm
MSO
- BOS
1 stop6h 24m
Delta
Deal found 4/22![Delta logo]()
$461
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/296:00 am
BOS
- MSO
1 stop9h 28m
American Airlines
Tue 6/26:45 am
MSO
- BOS
2 stops10h 37m
American Airlines
Deal found 4/22![American Airlines logo]()
$454
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 April 23, 2026.
Search for one-way flight options from Boston to Missoula. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Tue 5/199:31 am
BOS
- MSO
2 stops49h 52m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$160
This United Airlines deal was found by Cheapflights users on 4/19. 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 6/36:00 am
BOS
- MSO
1 stop11h 38m
United Airlines
Deal found 4/19![United Airlines logo]()
$199
This Delta deal was found by Cheapflights users on 4/19. 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 6/32:33 pm
BOS
- MSO
2 stops11h 07m
Delta
Deal found 4/19![Delta logo]()
$204
This United Airlines deal was found by Cheapflights users on 4/22. 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 5/256:00 am
BOS
- MSO
1 stop7h 32m
United Airlines
Deal found 4/22![United Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 4/18. 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.
Sat 7/45:54 pm
BOS
- MSO
1 stop7h 50m
Delta
Deal found 4/18![Delta logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Tue 6/29:12 am
BOS
- MSO
3 stops50h 23m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sat 5/912:01 pm
BOS
- MSO
3 stops24h 57m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$242
This American Airlines deal was found by Cheapflights users on 4/21. 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 6/52:27 pm
BOS
- MSO
1 stop10h 11m
American Airlines
Deal found 4/21![American Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 6/176:00 am
BOS
- MSO
3 stops29h 35m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Thu 4/3012:31 pm
BOS
- MSO
3 stops33h 33m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$254
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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $409 (Delta) |
One-way from | $160 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $483 |
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 April 23, 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 - MSO
BOSMSO
Boston Logan Intl
Fri 9/4
2:30 pm-12:24 am
2 stops11h 54m
Missoula Johnson-Bell Field
Sat 9/12
6:10 pm-6:09 am
1 stop9h 59m
$472
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Fri 5/15
7:11 pm-12:16 pm
1 stop19h 05m
Missoula Johnson-Bell Field
Sun 5/17
7:45 am-6:11 pm
1 stop8h 26m
$501
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Tue 6/2
6:00 am-11:59 pm
2 stops19h 59m
Missoula Johnson-Bell Field
Sun 6/7
7:45 am-6:11 pm
1 stop8h 26m
$512
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Fri 5/8
2:33 pm-11:40 pm
2 stops11h 07m
Missoula Johnson-Bell Field
Tue 5/12
6:05 pm-6:20 am
1 stop10h 15m
$519
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Mon 8/17
6:25 pm-12:24 am
1 stop7h 59m
Missoula Johnson-Bell Field
Mon 8/24
5:45 am-7:45 pm
2 stops12h 00m
$524
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Sun 5/3
6:00 am-4:04 pm
2 stops12h 04m
Missoula Johnson-Bell Field
Tue 5/5
6:15 am-6:20 pm
2 stops10h 05m
$525
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Fri 5/8
6:42 pm-12:28 pm
1 stop19h 46m
Missoula Johnson-Bell Field
Tue 5/12
1:59 pm-5:44 am
2 stops13h 45m
$536
Quickest round-trip
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Sat 8/1
5:55 pm-11:44 pm
1 stop7h 49m
Missoula Johnson-Bell Field
Mon 8/10
6:10 pm-6:09 am
1 stop9h 59m
$569
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Fri 6/5
4:48 pm-11:59 pm
1 stop9h 11m
Missoula Johnson-Bell Field
Sun 6/14
7:03 am-6:41 pm
1 stop9h 38m
$601
BostonMissoula
BOS - MSO
BOSMSO
Boston Logan Intl
Mon 6/15
7:15 am-2:38 pm
1 stop9h 23m
Missoula Johnson-Bell Field
Sat 6/20
5:55 am-4:49 pm
1 stop8h 54m
$606
Showing 1-10 of 21 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 April.
| 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?
Use this chart to determine the optimal time to book a round-trip flight from Boston to Missoula. Price data was last updated on April 17, 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, 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 June is currently the most expensive (average of $614). 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?
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 April 23, 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.
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$309 | Average$508 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$340 | Average$613 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$350 | Average$549 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$390 | Average$483 | FlexibilityNo cancel fee | On-time75% |