$179 Cheap Delta flights Kailua-Kona (KOA) to Seattle (SEA)

Use the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines return flights from $342 from KOA to SEA. Affordable one-way options from $179 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.

Start searching one to three months ahead of your departure date to score cheaper fares on Delta Air Lines flights from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA). 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 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 spot on, and you can enjoy significant savings on domestic trips.*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.

The earliest flight from KOA to SEA with Delta Air Lines leaves at 9:00PM UTC-10. You'll touch down at 5:00AM UTC-8. The final Delta Air Lines flight of the day leaves at 9:00PM UTC-10 and arrives at 5:00AM UTC-8. With 20% fewer cancellations for early and mid-morning departures, beginning your travel day early is typically the smartest choice.**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.

Heading from KOA to SEA with Delta Air Lines means enjoying a variety 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 spend on select future travel purchases. That's on top of 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.