Cheap Delta flights Eugene (EUG) to Seattle (SEA)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines return flights from $137 from EUG to SEA. Affordable one-way fares are also available.**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.

Look for one-way or round-trip flights to Seattle in January or February. You could find lower fares with Delta Air Lines during these off-peak months.

Begin your search one to three months ahead of your travel date to get cheap fares on Delta Air Lines flights from Mahlon Sweet Field Airport (EUG) 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 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 the 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.

Easily travel from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) on one of Delta Air Lines’s 20 weekly direct flights. Use our “Nonstop” and “Airline” filters to find the Delta Air Lines flight that’ll get you to SEA at a time that suits you.

Take off from Mahlon Sweet Field Airport (EUG) for Seattle - Tacoma Intl. Airport (SEA) on a direct Delta Air Lines flight, and you’ll be airborne for about 1h 26m.

Tuesday has the most Delta Air Lines flights from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA). With 3 daily departures, this is the best day of the week to book something that will fit your plans.

The earliest flight from EUG to SEA with Delta Air Lines leaves at 5:00AM UTC-8. You’ll land at 6:30AM UTC-8. The last Delta Air Lines flight of the day leaves at 5:35PM UTC-8 and arrives at 7:00PM UTC-8. With around 20% fewer cancellations for early and mid-morning departures, setting off early is generally the wisest option.**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.

Seattle - Tacoma Intl. Airport (SEA) is the main Seattle gateway for Delta Air Lines flights from Mahlon Sweet Field Airport (EUG).

Taking off from EUG to SEA with Delta Air Lines means enjoying a range of perks, including a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can collect 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.

You’ll probably board an Embraer 175 for your Delta Air Lines flight from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA). However, you may be switched to an alternative aircraft if there’s an operational need.

It’s generally possible to modify or cancel your flight, although there may be additional charges if you made your booking over 24 hours ago. Need to keep your options open? Use Expedia’s “Changes included” and “No cancel fee” filters to find flights that won’t charge you extra if you need to revise your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.