$79 Cheap Delta flights Missoula (MSO) to Portland (PDX)

Use the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines round-trip flights from $149 from MSO to PDX. Affordable one-way options from $79 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to Portland tend to be cheaper in the quieter months of January and December. Whether you need a return or one-way ticket, you could score a better deal then.

Look for affordable Delta Air Lines flights from Missoula Intl. Airport (MSO) to Portland Intl. Airport (PDX) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To figure out if there’s a direct route from MSO to PDX with Delta Air Lines or any other carriers, select the “Nonstop” filter when searching for flights.

To find the earliest departure from MSO to PDX with Delta Air Lines, filter your search by “Morning” and “Early Morning.” Booking an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Jump on a Delta Air Lines flight from Missoula Intl. Airport (MSO) to Portland, and you’ll likely come in to Portland Intl. Airport (PDX). This is the airline’s primary hub here.

Taking off from MSO to PDX with Delta Air Lines means enjoying a range of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your fare type, a fee typically applies if you modify or cancel your flight more than 24 hours after it has been confirmed. To find flexible fares, select our “Changes included” or “No cancel fee” filter while searching for flights. To learn more about canceling or modifying your reservation, go to “Trips,” select your flight and click on “Manage Booking.”