Cheap Alaska Airlines flights Santa Rosa (STS) to Seattle (SEA)

Set the “Price (lowest to highest)” filter on Expedia to find cheap Alaska Airlines return flights from STS to SEA. Affordable one-way options are available as well.**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 usually cheaper in the low-season months of January and February. Whether you need a round-trip or one-way ticket, you could score a better deal then.

Begin your search one to three months ahead of your travel date to get cheaper fares on Alaska Airlines flights from Sonoma County Airport (STS) 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 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.* Nail your timing, and you can enjoy significant savings on domestic flights.*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 Sonoma County Airport (STS) to Seattle - Tacoma Intl. Airport (SEA) on any of Alaska Airlines’s 11 weekly direct flights. Apply Expedia’s “Nonstop” and “Airline” filters to find the Alaska Airlines flight that’ll arrive at SEA at a time that suits you.

From wheels-up to touchdown, a direct Alaska Airlines flight from Sonoma County Airport (STS) to Seattle - Tacoma Intl. Airport (SEA) takes around 2h 8m.

Alaska Airlines has the most flights from Sonoma County Airport (STS) to Seattle - Tacoma Intl. Airport (SEA) on Wednesday. With up to 2 daily departures, you’ll get the most flexibility and choice on this day.

The earliest Alaska Airlines flight from STS to SEA takes off at 10:01AM UTC-8, touching down at 12:09PM UTC-8. If you prefer to jet off later, the last Alaska Airlines flight leaves STS at 7:03PM UTC-8 and lands at SEA at 9:16PM UTC-8. Flying earlier is generally a wise choice as 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.

Catch an Alaska Airlines flight from Sonoma County Airport (STS) to Seattle, and you’ll most likely touch down at Seattle - Tacoma Intl. Airport (SEA). This is the airline’s primary hub in this city.

With top-tier customer service and an excellent in-flight experience, Alaska Airlines is a top choice for many travelers heading from STS to SEA. Also, if you’re a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Jet off on an Alaska Airlines flight from Sonoma County Airport (STS) to Seattle - Tacoma Intl. Airport (SEA), and you’ll usually be on an Embraer 175. Bear in mind though, that the aircraft type can change depending on operational demands.

In most cases, you can cancel or modify your flight, although there may be a charge if you made your booking more than 24 hours ago. Prefer to keep your options open? Apply the “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to revise your plans. To update your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more information.