$89 Cheap Delta flights Seattle (SEA) to Missoula (MSO)

You can find cheap return Delta Air Lines flights from $177 from SEA to MSO by organizing your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $89 for a one-way journey.**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 Missoula are typically cheaper in the low-season months of January and February. Whether you need a one-way or round-trip ticket, you could find a better deal then.

Begin your search one to three months ahead of your departure date to score cheap fares on Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic journeys.*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.

Click on our “Nonstop” filter when searching for direct Delta Air Lines flights from SEA to MSO. You’ll also be able to compare other carriers servicing the same nonstop trip.

Filter your results by “Morning” and “Early Morning” to see the earliest departures from SEA to MSO. Jetting off early means flight 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.

Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Missoula come in to Missoula Intl. Airport (MSO). This is the main entry point to this city.

With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is the leading choice for many travelers heading from SEA to MSO. Also, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Typically, you can change or cancel your flight, although there may be additional fees if you booked more than 24 hours ago. Need to keep your options open? Use our “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you need to revise your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more information.