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$386+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — PWM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$484
(United Airlines)

One-way from

$386
(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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 6/2712:40 pmMSO - PWM
1 stop7h 21mUnited Airlines
Fri 7/46:10 amPWM - MSO
1 stop7h 28mUnited Airlines
Deal found 6/12$484
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 8/76:45 amMSO - PWM
2 stops15h 02mAmerican Airlines
Thu 8/146:30 amPWM - MSO
1 stop7h 46mAmerican Airlines
Deal found 6/10$492
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/89:54 pmMSO - PWM
3 stops35h 41mMultiple Airlines
Fri 8/1512:46 pmPWM - MSO
1 stop22h 52mMultiple Airlines
Deal found 6/10$496

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 June 12, 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

Fri 6/27

12:40 pm-10:01 pm

1 stop7h 21m

Portland

Fri 7/4

6:10 am-11:38 am

1 stop7h 28m

$484

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Thu 8/7

6:45 am-11:47 pm

2 stops15h 02m

Portland

Thu 8/14

6:30 am-12:16 pm

1 stop7h 46m

$492

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Fri 8/8

9:54 pm-11:35 am

3 stops35h 41m

Portland

Fri 8/15

12:46 pm-9:38 am

1 stop22h 52m

$496

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 6/17

7:03 am-5:43 pm

1 stop8h 40m

$386

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 7/15

6:15 am-3:49 pm

1 stop7h 34m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Food

6.6

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Food

6.6

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
8,790 reviews

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Food

6.6

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.

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

    Currently priced at $484, United Airlines will fly you from Missoula to Portland, Maine and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $492.

  • 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 Missoula?

Book flights to Missoula if you plan to visit one of these locations
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$318Average$630FlexibilityNo cancel feeOn-time69%

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