$579+ Cheap flights from Missoula to Portland, ME (MSO - PWM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — PWM
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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Find cheap flights from Missoula to Portland 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 Missoula to Portland
Cheapest
Best
Last-minute
Cheapest flights from Missoula to PortlandExplore the most affordable flight options available from Missoula to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
Explore the most affordable flight options available from Missoula to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/2412:21 pm -
1 stop7h 25m
Mon 9/286:00 am -
1 stop7h 24m
Deal found 9/9![United Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/96:15 am -
1 stop7h 47m
Fri 11/138:47 am -
2 stops15h 00m
Deal found 9/8![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/2812:21 pm -
1 stop7h 25m
Wed 9/306:00 am -
1 stop7h 24m
Deal found 9/8![United Airlines logo]()
$631
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/91:06 pm -
1 stop20h 22m
Fri 11/1312:50 pm -
1 stop25h 46m
Deal found 9/8![American Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/710:38 am -
2 stops10h 50m
Sat 10/176:00 am -
1 stop7h 32m
Deal found 9/10![United Airlines logo]()
$733
Best flights from Missoula to PortlandDiscover carefully curated flight deals from Missoula to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from Missoula to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/96:15 am -
1 stop7h 47m
Fri 11/138:47 am -
2 stops15h 00m
Deal found 9/8![United Airlines logo]()
$593
This American Airlines deal was found by Cheapflights users on 9/8. 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 11/91:06 pm -
1 stop20h 22m
Fri 11/1312:50 pm -
1 stop25h 46m
Deal found 9/8![American Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 1/236:15 am -
2 stops13h 33m
Tue 1/267:23 am -
2 stops13h 02m
Deal found 9/10![United Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/2812:21 pm -
1 stop7h 25m
Wed 9/306:00 am -
1 stop7h 24m
Deal found 9/8![United Airlines logo]()
$631
Last-minute flights from Missoula to PortlandDiscover last-minute flight deals from Missoula to Portland. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Portland. Data last updated September 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/2412:21 pm -
1 stop7h 25m
Mon 9/286:00 am -
1 stop7h 24m
Deal found 9/9![United Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/2812:21 pm -
1 stop7h 25m
Wed 9/306:00 am -
1 stop7h 24m
Deal found 9/8![United Airlines logo]()
$631
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/710:38 am -
2 stops10h 50m
Sat 10/176:00 am -
1 stop7h 32m
Deal found 9/10![United Airlines logo]()
$733
Find flight deals from Missoula to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Portland (PWM). 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $579 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Missoula to Portland 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 7,457,451 searches. Data last updated September 13, 2026.
Use the filters below to find and compare flights from Missoula to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MissoulaPortland
MSO Missoula Johnson-Bell Field - PWM Portland
MSOPWM
Missoula Johnson-Bell Field
Mon 11/9
6:15 am-4:02 pm
1 stop7h 47m
Portland
Fri 11/13
8:47 am-9:47 pm
2 stops15h 00m
$593
MissoulaPortland
MSO Missoula Johnson-Bell Field - PWM Portland
MSOPWM
Missoula Johnson-Bell Field
Sat 1/23
6:15 am-9:48 pm
2 stops13h 33m
Portland
Tue 1/26
7:23 am-6:25 pm
2 stops13h 02m
$629
Quickest round-trip
MissoulaPortland
MSO Missoula Johnson-Bell Field - PWM Portland
MSOPWM
Missoula Johnson-Bell Field
Mon 9/28
12:21 pm-9:46 pm
1 stop7h 25m
Portland
Wed 9/30
6:00 am-11:24 am
1 stop7h 24m
$631
MissoulaPortland
MSO Missoula Johnson-Bell Field - PWM Portland
MSOPWM
Missoula Johnson-Bell Field
Mon 11/9
1:06 pm-11:28 am
1 stop20h 22m
Portland
Fri 11/13
12:50 pm-12:36 pm
1 stop25h 46m
$701
Sorted by cheapest first
Compare providers for flights from Missoula to Portland
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 Missoula to Portland in September.
| 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 Missoula-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Missoula-Portland, Maine 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 Missoula-Portland, Maine 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 Missoula to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Missoula with our price prediction graph.
MSO-PWM
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.
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated September 13, 2026.
Get a feel of what it's like to fly with United Airlines from Missoula to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Entertainment
7.1
Food
6.7
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Entertainment
7.1
Food
6.7
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Missoula to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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Missoula and Portland flights
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Top airline flying from Missoula to Portland
Discover the top airline that operate flights from Missoula to Portland. 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 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$438 | Average$582 | FlexibilityNo cancel fee | On-time69% |