Portland, Oregon Panorama

£96 Cheap Flights from Missoula (MSO) to Portland (PDX)

View £96 flight on Thu, 27 Aug 2026Opens in a new window

Popular airlines from Missoula Intl. Airport (MSO) to Portland International Airport (PDX)

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Cheap Flights from Missoula (MSO) to Portland (PDX)

Prices were available within the past 7 days and start at £96 for one-way flights and £184 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£184 Return, found 4 days ago
£184
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £184 found 4 days ago
Alaska Airlines
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£191 Return, found 4 days ago
£191
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £191 found 4 days ago
Alaska Airlines
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£192 Return, found 4 days ago
£192
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £192 found 4 days ago
Alaska Airlines
Sun, 4 Oct - Tue, 6 Oct
MSO
Missoula
PDX
Portland
£192 Return, found 1 day ago
£192
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 4 Oct from Missoula to Portland, returning Tue, 6 Oct, priced at £192 found 1 day ago
Alaska Airlines
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£195 Return, found 4 days ago
£195
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £195 found 4 days ago
Delta
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£199 Return, found 4 days ago
£199
Return
found 4 days ago
Select Delta flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £199 found 4 days ago
Alaska Airlines
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£203 Return, found 4 days ago
£203
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £203 found 4 days ago
Alaska Airlines
Fri, 4 Sept - Sun, 6 Sept
MSO
Missoula
PDX
Portland
£204 Return, found 1 day ago
£204
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 4 Sept from Missoula to Portland, returning Sun, 6 Sept, priced at £204 found 1 day ago
United
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£218 Return, found 4 days ago
£218
Return
found 4 days ago
Select United flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £218 found 4 days ago
American Airlines
Thu, 27 Aug - Sat, 5 Sept
MSO
Missoula
PDX
Portland
£717 Return, found 4 days ago
£717
Return
found 4 days ago
Select American Airlines flight, departing Thu, 27 Aug from Missoula to Portland, returning Sat, 5 Sept, priced at £717 found 4 days ago

Frequently asked questions

What is the cheapest month to fly from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
April is typically the cheapest month to fly from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.), with average round-trip fares around 625 CAD. This is about 16% lower than the average price throughout the year. April often sees lower prices as it's outside of peak holiday or summer travel seasons, leading to reduced demand. Other cheap months to fly from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) include May and September.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
To find a cheap flight from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
The best airline to fly with from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) will differ from traveler to traveler. If you like to fly early, AS offers early morning flights. If price is the most important factor, AS typically offers the lowest fares. AS offers the most daily flights from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
The best time to fly from Missoula, MT (MSO-Missoula Intl.) (MSO) to Portland, OR (PDX-Portland Intl.) (PDX) for a good balance of price and availability is typically April or September. Based on booking data from the past year, you can expect average round-trip flight prices around 625 CAD during these months. These periods often offer pleasant weather for travel and a good selection of flights without the peak season crowds.*Prices based on flights available on Expedia in the last year.
How many flights per day from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
There are approximately 13 connecting flights per day from Missoula Intl. (MSO) to Portland Intl. (PDX). Some common connection points include Seattle - Tacoma Intl. (SEA), Salt Lake City Intl. (SLC), and Denver Intl. (DEN).
What is the earliest flight from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
The earliest flight from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) typically departs at approximately 5:00 AM local time, operated by Delta. This is a seasonal service active in January, February, March, and April. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
You'll typically find the most flights from Missoula, MT (MSO-Missoula Intl.) (MSO) to Portland, OR (PDX-Portland Intl.) (PDX) on a Thursday, with around 12 flights available. This gives you a good selection for your travel plans. Major airlines on this route include Alaska Airlines, Delta Air Lines, and United Airlines.
What are the most popular departure times for flights from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
The most popular departure times for flights from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) are between 12pm and 3pm. About 44% of passengers prefer this time window. Many major carriers, including Alaska Airlines and Delta Air Lines, offer flights during this window. This timing works well because it allows for a morning in Missoula and an afternoon arrival in Portland.
How long does it take to fly from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
Direct flights from MSO to PDX usually take about 2 hours, traveling roughly 416 miles. If you opt for a connecting flight, expect to add around 4 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
Select the "Business class" and "First class" filters when looking for MSO to PDX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) flight with Expedia?
It's easy to earn miles on a Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Portland from Missoula Intl. (MSO)?
When traveling from Missoula Intl. (MSO) to Portland, you can fly into Portland Intl. Jetport (PWM) and Portland Intl. (PDX). Some flights may connect through major hubs like Denver Intl. (DEN), Salt Lake City Intl. (SLC), Minneapolis - St. Paul Intl. (MSP) before reaching Portland. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) at the last minute?
Typically, booking a last minute flight from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) flight and hotel package?
Securing a Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.)?
If you booked your Missoula, MT (MSO-Missoula Intl.) to Portland, OR (PDX-Portland Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Missoula Intl.
Destination airport
Portland Intl.
Return price
£184
Distance
666 km
Average flight time
1 hour 35 mins

Book with confidence

Compare flights from Missoula to Portland easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Missoula to Portland. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Portland Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Missoula Intl. to Portland Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Missoula Intl. (MSO) to Portland Intl. (PDX)

The easiest way to view the best deals on flights from Missoula to Portland today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Missoula Intl. to Portland Intl. start at just £184 and range up to £717.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Missoula and Portland
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Missoula to Portland flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Missoula Intl. to Portland Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Missoula to Portland easily and book with confidence

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*Available to Expedia members.