$109 Cheap Delta flights Salt Lake City (SLC) to Seattle (SEA)

Landing cheap one-way Delta Air Lines flights from SLC to SEA from $109 on Expedia is easy --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $177 for your next 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.

Search for cheap Delta Air Lines flights from Salt Lake City Intl. Airport (SLC) to Seattle - Tacoma Intl. Airport (SEA) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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 first Delta Air Lines flight from SLC to SEA departs at 6:45AM UTC-7, landing at 8:19AM UTC-8. If you'd like to jet off later, the last Delta Air Lines flight leaves SLC at 11:20PM UTC-7 and lands at SEA at 12:50AM UTC-8. Flying before noon is often a smart option as morning and mid-morning flights are less likely to be canceled.**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 makes traveling from SLC to SEA enjoyable with an excellent in-flight experience and a rewarding loyalty program. You also have the chance to earn points with Delta SkyMiles. Don't forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.