$129 Cheap Alaska Airlines flights Pasco (PSC) to Santa Rosa (STS)

View $129 flight on Sat, Oct 11, 2025Opens in a new window

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$129 Cheap Alaska Airlines flights Pasco (PSC) to Santa Rosa (STS)

Prices were available within the past 7 days and start at $129 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Pasco (PSC) to Santa Rosa (STS)
Origin airport
Tri-Cities
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Popular airline
Alaska Airlines
Distance
567 mi

Frequently asked questions

How much is an Alaska Airlines flight from Tri-Cities Airport (PSC) to Sonoma County Airport (STS)?
Scoring cheap one-way Alaska Airlines flights from PSC to STS from $129 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares for your next exciting adventure.**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.
What is the cheapest month to fly from PSC to STS with Alaska Airlines?
Alaska Airlines flights to Santa Rosa are typically more affordable in the off-peak months of January and February. Whether you're in search of a one-way or a return ticket, you could find a better deal then.
What is the cheapest time to book flights from Tri-Cities Airport (PSC) to Sonoma County Airport (STS) with Alaska Airlines?
Look for cheap Alaska Airlines flights from Tri-Cities Airport (PSC) to Sonoma County Airport (STS) one to three months before 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 best day to book a domestic flight is usually Sunday and the most expensive is typically 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.
Does Alaska Airlines fly nonstop from Tri-Cities Airport (PSC) to Sonoma County Airport (STS)?
Simply enter your dates, click search and check the "Nonstop" filter on Expedia to browse any direct flights from PSC to STS with Alaska Airlines or another carrier.
What is the earliest Alaska Airlines flight from PSC to STS?
Find Alaska Airlines's earliest flights from PSC to STS by checking the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being 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.
What airports does Alaska Airlines fly into in Santa Rosa?
Alaska Airlines flights from Tri-Cities Airport (PSC) to Santa Rosa touch down at Sonoma County Airport (STS). This is the main entry point to this destination.
Why fly with Alaska Airlines from PSC to STS?
With a rewarding loyalty program and an excellent in-flight experience, Alaska Airlines is a favorite for many travelers flying from PSC to STS. Also, if you're a Mileage Plan and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Tri-Cities Airport (PSC) to Sonoma County Airport (STS)?
Depending on the type of fare you purchased, a fee may apply if you cancel or change your flight more than 24 hours after confirmation. To secure flexible plane tickets, select our "Changes included" or "No cancel fee" filter when you look for flights. For additional information on canceling or changing your reservation, go to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.