$214 Cheap Delta flights Wilmington (ILM) to Seattle (SEA)

Landing cheap one-way Delta Air Lines flights from ILM to SEA from $214 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares from $370 for your next exciting vacation.**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 typically more affordable in the low-season months of January and February. Whether you’re in search of a return or one-way ticket, you could find a better deal then.

To find cheap Delta Air Lines fares from Wilmington Intl. Airport (ILM) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your intended 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 impact what you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip 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.

Simply enter your dates, hit search and select the “Nonstop” filter on Expedia to find any direct flights from ILM to SEA with Delta Air Lines or other airlines.

Sort your results by “Early Morning” and “Morning” to find the earliest flights from ILM to SEA. Leaving early means flight 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.

Seattle - Tacoma Intl. Airport (SEA) is the main Seattle hub for Delta Air Lines flights from Wilmington Intl. Airport (ILM).

Heading from ILM to SEA with Delta Air Lines comes with plenty of perks, including a rewarding loyalty program and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend 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 is typically charged if you cancel or reschedule your flight more than 24 hours after it’s been confirmed. To find flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when looking for flights. For additional information on changing or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”