Cheap Flights from Seattle to Santa Rosa

Compare Seattle to Santa Rosa flight deals

Find the cheapest month or even day of the year to fly to Santa Rosa

Book the best Santa Rosa fare with no extra fees

Find the cheapest month to fly from Seattle to Santa Rosa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Santa Rosa flights are currently cheapest in March.

Direct flights from Seattle to Santa Rosa

Seattle to Santa Rosa: Alternative routes

Compare routes from Seattle to Santa Rosa below. You may find an airport to fly into that's cheaper, faster, or easier than Santa Rosa.

Seattle to Santa Rosa: Flight information

The things to know before you go.
Cheapest flight foundR 3,319
Cheapest month to flyMarch
Average flight time2 hrs, 4 mins
Most popular airlineAlaska Airlines
Average flights per week41

Finding cheap flights from Seattle to Santa Rosa: Frequently asked questions

The best price we found for a return flight from Seattle to Santa Rosa is R 2,888. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 4 minutes is the average flight time from Seattle to Santa Rosa.
Alaska Airlines, Qatar Airways and Horizon Air fly direct from Seattle to Santa Rosa.
As of February 2026, there are 41 flights per week flying from Seattle to Santa Rosa.
The cheapest month to fly from Seattle to Santa Rosa is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Santa Rosa Airport on Saturday, 18 April 2026.
Yes – the average flight time is 2 hours and 4 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Santa Rosa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Santa Rosa is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Santa Rosa is Alaska Airlines .

Travelling from Seattle to Sonoma County Airport (STS): What you need to know

  • Start your trip at Seattle-Tacoma International Airport (SEA), the main airport in Seattle. Search for flights from Seattle to Sonoma County Airport (STS) that jet out of this base.

  • Expect to be in the air for 2 hours 5 minutes. That's the average journey time for a direct Seattle to Sonoma County Airport flight.

  • Santa Rosa's timezone is UTC-7, which is the same as Seattle. Sonoma County Airport is located in Santa Rosa.

  • The busiest route is from Seattle-Tacoma International Airport (SEA) to Sonoma County Airport (STS), with 13 direct weekly services. If you're looking to take off without delay, the earliest flight from SEA to STS is the 7:55am Alaska Airlines service. If you prefer to leave later in the day, the final departure is at 7:55pm with Alaska Airlines.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Show up at the airport on time to catch your flight from Seattle to STS.

  • Delays at security and check-in are likely if you're heading away during high season, so give yourself some extra breathing space. The recommendation for peak times? Get there up to four hours ahead for international flights and two hours for domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is a convenient option for travelling directly to your destination. Nonstop flights from Seattle to Sonoma County Airport (STS) depart from this terminal.

  • When departing from SEA, you can take a direct flight from Seattle to Sonoma County Airport with Alaska Airlines.

  • Alaska Airlines sees the most traveller bookings for flights from SEA to STS.

  • Alaska Airlines ranks highest for on-time performance. An exceptional 83.78% of its departures on this route arrive without delay.

  • Travelling from central Seattle to SEA takes around 55 minutes by public transport. If you drive, ride-share or take a cab, you'll cover the 23 kilometres in 20 minutes or so, depending on traffic.

  • Catching an early flight from Seattle to Sonoma County Airport? Avoid the mad dash to the terminal (and get some bonus sleep) by picking one of these hotels near Seattle-Tacoma International Airport:

  • 81.27% of flights leaving Seattle-Tacoma International Airport reach their destination according to schedule. With its reliable on-time performance, you're unlikely to be delayed when jetting out of SEA.

Lake Union Sea Plane Base Airport (LKE)

About Sonoma County Airport (STS)

Getting from Sonoma County Airport (STS) to central Santa Rosa

  • Central Santa Rosa is roughly 11 kilometres from Sonoma County Airport. Travel times by cab or car hire will vary based on time of day, so do some research ahead of time.

  • Travelling by public transport typically takes 35 minutes.

How to find the cheapest flights from Seattle to Sonoma County Airport (STS)

  • Right now, R 3,319 is the best price we've found for a one-way ticket from Seattle to Sonoma County Airport. The cheapest price for a return flight is R 2,888. Remember fares may change due to demand at the time of booking.

  • To snag cheap flights from Seattle to STS, book your ticket four months before your departure date.

  • Plan your trip for September. That's the best month for landing an awesome deal on Seattle to Sonoma County Airport tickets. If you're flexible with your travel dates, use the 'Whole month' tool to find the cheapest price across each month.

  • Never miss a deal on plane tickets from Seattle to STS by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Find a cheap flight from Seattle to Sonoma County Airport by using filters. Choose your ideal times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seattle to Sonoma County Airport (STS)

  • Think about the kind of holiday you want when planning the timing of your trip. May is the quietest month to visit Santa Rosa. October is when most people book flights from Seattle to Sonoma County Airport (STS), which may be ideal if you're chasing more action.

  • The warmest month in Santa Rosa is August, with temperatures ranging between 11ºC (52ºF) and 29ºC (84ºF). Lock in your Seattle to STS plane ticket then if that's your idea of comfortable weather.

  • February sees temperatures of between 2ºC (36ºF) and 19ºC (66ºF). Look for cheap tickets from Seattle to Sonoma County Airport around that time if you want to travel in cooler conditions.

More about Santa Rosa

Explore more of the United States

  • You've visited Santa Rosa, now it's time to explore more of the United States. Travel about 153 kilometres south-east to San Jose to check off its top attractions. From Japantown (San Jose) to Winchester Mystery House and The Tech Museum of Innovation, you'll have a full itinerary ahead.

  • Around 113 kilometres east of Santa Rosa, Sacramento is another favourite stop in the United States. Experience this destination's highlights firsthand at Old Sacramento Waterfront, Fright Planet - America's Haunted Theme Park and California State Railroad Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.