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$439+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — PWM
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
1 adult, Economy
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Cheap flight deals from Missoula to Portland

Best flights from Missoula to Portland
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 diciembre 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/12. 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.
sáb. 1/246:00 amMSO - PWM
2 stops10h 54mUnited Airlines
mié. 1/286:00 amPWM - MSO
2 stops12h 05mUnited Airlines
Deal found 12/12$439

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 diciembre 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$439
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$649
Provider with most accurate pricing for Missoula Johnson-Bell Field-Portland flight deals.
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Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Portland flights.
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From Missoula Johnson-Bell Field to Portland
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 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 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 2,558,603 searches. Data last updated diciembre 15, 2025.
Use the filters below to find and compare flights from Missoula to Portland that are best for you.

Fly from

Missoula

Fly to

Portland

Route

Depart

Return

Price

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

sáb. 1/24

6:00 am-6:54 pm

2 stops10h 54m

Portland

mié. 1/28

6:00 am-4:05 pm

2 stops12h 05m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

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 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 Missoula-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Missoula-Portland, Maine flight deals on Cheapflights vs. eDreams >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 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 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.
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 Missoula to Portland

What is the cheapest month to book a flight from Missoula to Portland, Maine?

Currently, May is the cheapest month in which you can book a flight from Missoula to Portland, Maine (average of $251). Flying from Missoula to Portland, Maine in November is currently the most expensive (average of $440). 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.

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 diciembre 15, 2025.
Get a feel of what it's like to fly with United Airlines and American 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.
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,052 reviews
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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.

  • How long is the flight from Missoula to Portland, Maine?

    Departing from Missoula to Portland, Maine will take you 10h 54m. There are 2111 mi between Missoula and Portland, Maine.

  • What are the cheapest airlines flying from Missoula to Portland, Maine round-trip?

    Currently priced at $314, American Airlines will fly you from Missoula to Portland, Maine and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $483.

  • Can I find deals for flights from Missoula to Portland that include hotel bookings?

    Yes. In addition to deals on Missoula to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missoula to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missoula to Portland.

  • Can I find deals for business class flights from Missoula to Portland?

    Yes. Cheapflights offers flight deals from Missoula to Portland 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 Missoula to Portland, Maine?

    Currently, May is the cheapest month in which you can book a flight from Missoula to Portland, Maine (average of $251). Flying from Missoula to Portland, Maine in November is currently the most expensive (average of $440). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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Top 2 airlines flying from Missoula to Portland

Discover the top 2 airlines 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 2,558,603 searches. Data last updated diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$314Average$528FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$483Average$741FlexibilityNo cancel feeOn-time69%

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