$229 Cheap Delta flights Butte (BTM) to Seattle (SEA)

Grab budget-friendly return Delta Air Lines flights from $342 from BTM to SEA by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $229 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 Seattle are usually more affordable in the quieter months of January and February. Whether you’re searching for a return or one-way ticket, you could score a better deal then.

To find cheap Delta Air Lines fares from Bert Mooney Airport (BTM) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the price you pay. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**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 the “Nonstop” filter when browsing for direct Delta Air Lines flights from BTM to SEA. It’s also a good way to compare other airlines servicing the same nonstop trip.

Search Delta Air Lines’s earliest flights from BTM to SEA by checking our “Morning” and “Early Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**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 Bert Mooney Airport (BTM) to Seattle come in to Seattle - Tacoma Intl. Airport (SEA). This is the main entry point to this destination.

Taking off from BTM to SEA with Delta Air Lines comes with a host of perks, such as an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect 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 will generally apply if you modify or cancel your booking more than 24 hours after it’s been confirmed. To find flexible plane tickets, select our “No cancel fee” or “Changes included” filter when you look for flights. For more details on canceling or modifying your reservation, head to “Trips,” select your flight and click on “Manage Booking.”