$99 Cheap Delta flights Kansas City (MCI) to Seattle (SEA)

Landing cheap one-way Delta Air Lines flights from MCI to SEA from $99 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $217 for your next exciting getaway.**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.

Begin your search one to three months before your departure to find cheaper fares on Delta Air Lines flights from Kansas City Intl. Airport (MCI) to Seattle - Tacoma Intl. Airport (SEA). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut 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 flights.*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.

Departing MCI at 6:45AM UTC-6, the first Delta Air Lines flight to SEA lands at 8:55AM UTC-8. Flying early means you're less likely to encounter delays or cancellations.* Not an early riser? The last Delta Air Lines flight from MCI to SEA departs at 6:45AM UTC-6 and touches down at 8:55AM UTC-8.*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.

With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a popular option for many travelers flying from MCI to SEA. What's more, 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 can be put toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.