$139 Cheap Flights from Portland (PDX) to Missoula (MSO)

You can find cheap one-way flights from $139 and cheap return flights $254 Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula Intl.) with Expedia. One-way flights usually range from $149 to $755, and return flights typically cost between $263 and $1042. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

May is the cheapest month to fly from Portland, OR (PDX) to Missoula, MT (MSO), with average return fares around $287. This is about 13% lower than the average price throughout the year, likely due to lower demand before the summer travel season. Other budget-friendly months for this route include February and August.

*Averages based on flights available on Expedia in the last year.

Enter PDX to MSO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Alaska Airlines is one of the cheapest airlines offering connecting flights from Portland, OR (PDX) to Missoula, MT (MSO), with round-trip tickets starting from around $152. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula 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.

The best airline to fly with from Portland, OR (PDX) to Missoula, MT (MSO) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from PDX to MSO, 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.

For flights from Portland, OR (PDX) to Missoula, MT (MSO), May and February are the best months to consider. February has an average return flight price of around $287, making it an affordable option, while May is popular for travel, ensuring you have plenty of flight choices. This combination allows you to enjoy both good prices and a variety of flight schedules.

*Prices based on flights available on Expedia in the last year.

The earliest flight from Portland International Airport (PDX) to Missoula International Airport (MSO) typically leaves at 12:05 AM, operated by American Airlines. This is a seasonal service active in June and July. An early departure can help you maximize your time in Missoula. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Portland (PDX) to Missoula (MSO) are in the late morning, from 9am to noon. About 39% 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 you to start your day in Portland before heading out.

Flying nonstop from PDX to MSO takes around 1 hour 20 minutes, with the route covering approximately 416 miles. Flights with a layover typically take 6 hours 10 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

First class is available on flights from PDX to MSO. First class cabins are available on:

• United Airlines
• Delta Air Lines
• American Airlines

It's easy to earn miles on a Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula 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.

From Portland Intl. (PDX), you can fly into Missoula Intl. (MSO) to reach Missoula. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), San Francisco Intl. (SFO), Sky Harbor Intl. (PHX) before reaching Missoula. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula 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.

Securing a Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula Intl.) Missoula Vacation Packages 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.

If you booked your Portland, OR (PDX-Portland Intl.) to Missoula, MT (MSO-Missoula 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.