$136 Cheap Delta flights Appleton (ATW) to Seattle (SEA)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines return flights from $271 from ATW to SEA. Affordable one-way options from $136 are also on offer.**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.

Start searching one to three months ahead of your departure date to get cheaper fares on Delta Air Lines flights from Appleton Intl. Airport (ATW) 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 right, 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.

To see if there’s a direct trip from ATW to SEA with Delta Air Lines or other carriers, check the “Nonstop” box when browsing for flights.

To find the earliest departure from ATW to SEA with Delta Air Lines, filter your results by “Morning” and “Early Morning.” Booking an early flight usually means 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 Appleton Intl. Airport (ATW) to Seattle touch down at Seattle - Tacoma Intl. Airport (SEA). This is the main entry point to this destination.

Delta Air Lines makes flying from ATW to SEA more comfortable with a rewarding loyalty program and an excellent in-flight experience. You could even start collecting points with Delta SkyMiles. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making your booking, but your airline may charge a fee after that time. For further details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your plans without being charged, tick the “Changes included” or “No cancel fee” filter when organizing your next escape.