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$237+ Cheap flights from Missoula to Portland, ME (MSO - PWM)

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — PWM
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 11, 2025.

Round-trip from

$330
(United Airlines)

One-way from

$237
(American Airlines)
From Missoula Johnson-Bell Field to Portland
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One-way flight from Missoula Johnson-Bell Field to Portland
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Find flight deals from Missoula to Portland

Cheapest flights from Missoula to Portland
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 11, 2025.

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.
Mon 10/206:25 amMSO - PWM
1 stop7h 23mUnited Airlines
Sat 10/256:14 amPWM - MSO
1 stop7h 36mUnited Airlines
Deal found 9/10$330
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:00 amMSO - PWM
2 stops13h 09mDelta
Sat 11/112:00 pmPWM - MSO
2 stops11h 40mDelta
Deal found 9/10$344
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.
Tue 10/285:10 pmMSO - PWM
2 stops19h 02mUnited Airlines
Sat 11/13:20 pmPWM - MSO
1 stop8h 27mUnited Airlines
Deal found 9/9$470
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:50 pmMSO - PWM
1 stop9h 09mAmerican Airlines
Tue 9/306:01 amPWM - MSO
1 stop8h 19mAmerican Airlines
Deal found 9/10$475

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 September 11, 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

Mon 10/20

6:25 am-3:48 pm

1 stop7h 23m

Portland

Sat 10/25

6:14 am-11:50 am

1 stop7h 36m

$330

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 10/28

8:00 am-11:09 pm

2 stops13h 09m

Portland

Sat 11/1

12:00 pm-9:40 pm

2 stops11h 40m

$344

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 10/28

5:10 pm-2:12 pm

2 stops19h 02m

Portland

Sat 11/1

3:20 pm-9:47 pm

1 stop8h 27m

$470

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Fri 9/26

12:50 pm-11:59 pm

1 stop9h 09m

Portland

Tue 9/30

6:01 am-12:20 pm

1 stop8h 19m

$475

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Wed 10/29

1:31 pm-12:35 pm

2 stops21h 04m

$237

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Wed 10/29

6:20 am-3:48 pm

1 stop7h 28m

$260

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Fri 9/19

2:54 pm-5:00 pm

2 stops48h 06m

$435

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Fri 9/19

12:50 pm-11:49 am

1 stop20h 59m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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, January is the cheapest month in which you can book a flight from Missoula to Portland, Maine (average of $296). Flying from Missoula to Portland, Maine in July is currently the most expensive (average of $394). 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 September 11, 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
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 7h 23m. There are 2111 mi between Missoula and Portland, Maine. This flight may include one or multiple stops.

  • 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 $318.

  • 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, January is the cheapest month in which you can book a flight from Missoula to Portland, Maine (average of $296). Flying from Missoula to Portland, Maine in July is currently the most expensive (average of $394). 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
Brunswick
North Conway
Auburn
Conway
Lewiston

Browse thousands of different options on Cheapflights for your next trip

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$314Average$528FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$624FlexibilityNo cancel feeOn-time69%

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