$241 Cheap Flights from Missoula (MSO) to Portland (PWM)

View $241 flight on Thu, Nov 20, 2025Opens in a new window

Popular airlines from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM)

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Cheap Flights from Missoula to Portland (MSO-PWM)

Prices were available within the past 7 days and start at $241 for one-way flights and $319 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jan 13 - Tue, Jan 27
MSO
Missoula
PWM
Portland
$319 Roundtrip, found 6 days ago
$319
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jan 13 from Missoula to Portland, returning Tue, Jan 27, priced at $319 found 6 days ago
Delta
Sat, Jan 10 - Wed, Jan 14
MSO
Missoula
PWM
Portland
$344 Roundtrip, found 5 days ago
$344
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Jan 10 from Missoula to Portland, returning Wed, Jan 14, priced at $344 found 5 days ago
Delta
Sat, Jan 10 - Tue, Jan 20
MSO
Missoula
PWM
Portland
$375 Roundtrip, found 6 days ago
$375
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jan 10 from Missoula to Portland, returning Tue, Jan 20, priced at $375 found 6 days ago
Delta
Wed, Dec 17 - Wed, Jan 7
MSO
Missoula
PWM
Portland
$394 Roundtrip, found 6 days ago
$394
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Dec 17 from Missoula to Portland, returning Wed, Jan 7, priced at $394 found 6 days ago
Delta
Sat, Jan 10 - Tue, Jan 13
MSO
Missoula
PWM
Portland
$397 Roundtrip, found 5 days ago
$397
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Jan 10 from Missoula to Portland, returning Tue, Jan 13, priced at $397 found 5 days ago
Delta
Tue, Jan 27 - Tue, Feb 10
MSO
Missoula
PWM
Portland
$400 Roundtrip, found 6 days ago
$400
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jan 27 from Missoula to Portland, returning Tue, Feb 10, priced at $400 found 6 days ago
Delta
Sat, Dec 6 - Wed, Dec 17
MSO
Missoula
PWM
Portland
$408 Roundtrip, found 6 days ago
$408
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Dec 6 from Missoula to Portland, returning Wed, Dec 17, priced at $408 found 6 days ago
United
Fri, Jan 9 - Wed, Jan 14
MSO
Missoula
PWM
Portland
$412 Roundtrip, found 5 days ago
$412
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 9 from Missoula to Portland, returning Wed, Jan 14, priced at $412 found 5 days ago
American Airlines
Tue, Feb 10 - Tue, Feb 17
MSO
Missoula
PWM
Portland
$419 Roundtrip, found 4 days ago
$419
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Feb 10 from Missoula to Portland, returning Tue, Feb 17, priced at $419 found 4 days ago
Alaska Airlines
Wed, Jan 7 - Mon, Jan 12
MSO
Missoula
PWM
Portland
$419 Roundtrip, found 5 days ago
$419
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Jan 7 from Missoula to Portland, returning Mon, Jan 12, priced at $419 found 5 days ago

Find the cheapest month to fly from Missoula (MSO) to Portland (PWM)

September is typically the cheapest month to fly

From $308 - $999 per traveler.

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. Jetport PWM. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $594
PWM
Portland Intl. Jetport
CheapestClosest
Average driving time to city center8 min
Flights from $594

Frequently asked questions

How much does a flight from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM) cost?
Get a cheap one-way flight from $241 or cheap return flight from $319 from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM)?
The cheapest month to fly from MSO to PWM is January, when demand is low. Off-peak months are often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM)?
To find the cheapest airline that'll fly you from MSO to PWM, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM)?
Nonstop flights from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MSO to PWM?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM)?
Opt for a flight from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM) last-minute?
Last-minute bookings from MSO to PWM are typically more expensive. To secure the lowest prices, start looking for flights early. That being said, if you can play around with your travel dates, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book a MSO to PWM flight and hotel package?
You'll typically save money by securing a MSO to PWM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Missoula Intl. Airport (MSO) to Portland Intl. Jetport Airport (PWM)?
If you booked your MSO to PWM flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Missoula Intl.
Destination airport
Portland Intl. Jetport
Airlines serving
American Airlines, Delta, United
Roundtrip price
$319
Distance
2112 mi

Book with confidence

Missoula to Portland Flights

The cheapest times to fly from Missoula to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Missoula to Portland are during the month of January. You can find some of the cheapest flights from Missoula to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Missoula to Portland

Sunday is one of the best days to book for cheap flights from Missoula to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Missoula to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Missoula to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $241 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Missoula to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Missoula to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Missoula to Portland Flights

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*Available to One Key members.