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Missoula

$255+ Cheap flights from Portland, ME to Missoula (PWM - 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — MSO
Jul 15 — Jul 221
Wed 7/15
Wed 7/22
1 adult, Economy
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Cheap flight deals from Portland to Missoula

Cheapest flights from Portland to Missoula
Explore the most affordable flight options available from Portland to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.

This United Airlines deal was found by Cheapflights users on 6/14. 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 11/33:35 pm
PWM
-
MSO
1 stop7h 51m
United Airlines
Wed 11/46:15 am
MSO
-
PWM
1 stop7h 34m
United Airlines
Deal found 6/14$505
This United Airlines deal was found by Cheapflights users on 6/14. 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 9/96:00 am
PWM
-
MSO
1 stop7h 44m
United Airlines
Wed 9/167:15 am
MSO
-
PWM
2 stops14h 17m
United Airlines
Deal found 6/14$514
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:00 am
PWM
-
MSO
1 stop7h 32m
United Airlines
Sat 6/206:15 am
MSO
-
PWM
2 stops13h 36m
United Airlines
Deal found 6/10$516
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:45 pm
PWM
-
MSO
1 stop7h 47m
United Airlines
Wed 10/286:15 am
MSO
-
PWM
1 stop7h 34m
United Airlines
Deal found 6/10$519
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Fri 7/1011:16 am
PWM
-
MSO
1 stop25h 20m
Multiple Airlines
Thu 7/1610:24 am
MSO
-
PWM
2 stops34h 14m
Multiple Airlines
Deal found 6/14$597

Find flight deals from Portland to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 June 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$505
(United Airlines)

One-way from

$255
(Delta)
Provider with most accurate pricing for Portland-Missoula Johnson-Bell Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Missoula Johnson-Bell Field flights.
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From Portland to Missoula Johnson-Bell Field
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One-way flight from Portland to Missoula Johnson-Bell Field
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 June 15, 2026.
Use the filters below to find and compare flights from Portland to Missoula that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Tue 11/3

3:35 pm-9:26 pm

1 stop7h 51m

Missoula Johnson-Bell Field

Wed 11/4

6:15 am-3:49 pm

1 stop7h 34m

$505

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Wed 9/9

6:00 am-11:44 am

1 stop7h 44m

Missoula Johnson-Bell Field

Wed 9/16

7:15 am-11:32 pm

2 stops14h 17m

$514
Quickest round-trip

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Sat 10/24

3:45 pm-9:32 pm

1 stop7h 47m

Missoula Johnson-Bell Field

Wed 10/28

6:15 am-3:49 pm

1 stop7h 34m

$519
Cheapest one-way

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Wed 9/23

1:59 pm-11:37 pm

2 stops11h 38m

$260

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Fri 11/20

1:35 pm-12:31 am

2 stops12h 56m

$260
Quickest one-way

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Wed 9/23

6:00 am-11:44 am

1 stop7h 44m

$310

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Thu 11/19

10:54 am-11:15 am

3 stops50h 21m

$530

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Wed 11/18

9:45 am-1:27 pm

3 stops29h 42m

$540

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Sorted by cheapest first

Compare providers for flights from Portland 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 Portland to Missoula in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Portland, Maine-Missoula flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Missoula flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Missoula flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-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 Portland, Maine-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 Portland to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Portland 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.

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 June 15, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Portland to Missoula to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,830 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,830 reviews
United Airlines
7.4
Good
9,830 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,660 reviews
United Airlines
7.4
Good
9,830 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to Missoula. 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 Portland, Maine to Missoula?

    United Airlines can get you from Portland, Maine to Missoula in just under 7h 51m. Your travel time can differ by up to . Airlines will cover a distance of 2111 mi.

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

    Cheapflights users have booked flights from Portland, Maine to Missoula round-trip from $308. Another airline that can offer you cheap pricing is American Airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Missoula by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from Portland to Missoula

Discover the top 2 airlines that operate flights from Portland to Missoula. 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 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$308Average$419FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$463Average$774FlexibilityNo cancel feeOn-time71%

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