Cheap Alaska Airlines flights Salt Lake City (SLC) to Seattle (SEA)

Grab cheap return Alaska Airlines flights from SLC to SEA by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains for a one-way journey.**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.

Alaska Airlines flights to Seattle are typically more affordable in the off-peak months of January and February. Whether you’re after a one-way or round-trip ticket, you could score a better deal then.

Search for cheap Alaska Airlines 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. No matter the fare class and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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.

Choose from one of Alaska Airlines’s 32 weekly direct flights from Salt Lake City Intl. Airport (SLC) to Seattle - Tacoma Intl. Airport (SEA). To see what’s available, enter your origin, destination and dates and hit search. Then use the “Nonstop” and “Airline” filters.

From takeoff to touchdown, a direct Alaska Airlines flight from Salt Lake City Intl. Airport (SLC) to Seattle - Tacoma Intl. Airport (SEA) takes around 2h 34m.

Alaska Airlines has the most flights from Salt Lake City Intl. Airport (SLC) to Seattle - Tacoma Intl. Airport (SEA) on Saturday. With up to 5 daily departures, you’ll get the most options and flexibility on this day.

Setting off from SLC at 7:16AM UTC-7, the first Alaska Airlines flight to SEA lands at 9:00AM UTC-8. Traveling early means you’re less likely to encounter delays.* Don’t like early starts? The last Alaska Airlines flight from SLC to SEA departs at 8:40PM UTC-7 and touches down at 10:00PM UTC-8.*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.

Hop on an Alaska Airlines flight from Salt Lake City Intl. Airport (SLC) to Seattle, and you’ll most likely arrive at Seattle - Tacoma Intl. Airport (SEA). This is the airline’s main hub in this destination.

Traveling from SLC to SEA with Alaska Airlines means enjoying a range of perks, including an excellent in-flight experience and top-tier customer service. 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 Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be on an Embraer 175 or a Boeing 737-900 when flying Alaska Airlines from Salt Lake City Intl. Airport (SLC) to Seattle - Tacoma Intl. Airport (SEA). However, keep in mind that a different plane may be assigned depending on operational demands.

Depending on your ticket type, a fee is typically charged if you modify or cancel your booking more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter while searching for flights. To learn more about canceling or changing your reservation, visit “Trips,” select your flight and click on “Manage Booking.”