Cheap Flights from Santa Rosa (STS) to Seattle (SEA) from HK$1,435~

View HK$1,435 flight on Thu, 5 Feb 2026Opens in a new window

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Seattle

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Find Cheap Flights from Santa Rosa (STS) to Seattle (SEA)

Prices were available within the past 7 days and start at HK$1,435 for one-way flights and HK$2,546 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 5 Feb - Sun, 8 Feb
STS
Santa Rosa
SEA
Seattle
HK$2,546 Return, found 3 days ago
HK$2,546
Return
found 3 days ago
Select American Airlines flight, departing Thu, 5 Feb from Santa Rosa to Seattle, returning Sun, 8 Feb, priced at HK$2,546 found 3 days ago
American Airlines
Thu, 5 Feb - Sun, 8 Feb
STS
Santa Rosa
SEA
Seattle
HK$3,331 Return, found 3 days ago
HK$3,331
Return
found 3 days ago
Select American Airlines flight, departing Thu, 5 Feb from Santa Rosa to Seattle, returning Sun, 8 Feb, priced at HK$3,331 found 3 days ago
American Airlines
Thu, 5 Feb - Sun, 8 Feb
STS
Santa Rosa
SEA
Seattle
HK$3,439 Return, found 3 days ago
HK$3,439
Return
found 3 days ago
Select American Airlines flight, departing Thu, 5 Feb from Santa Rosa to Seattle, returning Sun, 8 Feb, priced at HK$3,439 found 3 days ago
American Airlines
Thu, 5 Feb - Sun, 8 Feb
STS
Santa Rosa
SEA
Seattle
HK$3,643 Return, found 3 days ago
HK$3,643
Return
found 3 days ago
Select American Airlines flight, departing Thu, 5 Feb from Santa Rosa to Seattle, returning Sun, 8 Feb, priced at HK$3,643 found 3 days ago
American Airlines
Thu, 5 Feb - Sun, 8 Feb
STS
Santa Rosa
SEA
Seattle
HK$8,072 Return, found 3 days ago
HK$8,072
Return
found 3 days ago
Select American Airlines flight, departing Thu, 5 Feb from Santa Rosa to Seattle, returning Sun, 8 Feb, priced at HK$8,072 found 3 days ago

Find the cheapest month to fly from Santa Rosa (STS) to Seattle (SEA)

October is typically the cheapest month to fly

From HK$931 - HK$2,583 per traveller.
Santa Rosa to Seattle route information
Origin airport
Sonoma County
Destination airport
Seattle - Tacoma Intl.
Return price
HK$2,546
Distance
988 km
Average flight time
2 hours 3 mins

Flights from Windsor to Seattle

Book cheap flights from Windsor (STS) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Windsor (STS) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Windsor (STS) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$1,435 now!

 

Frequently asked questions

How much is a flight from STS to Sea-Tac Airport?
The lowest price advertised for a round-trip flight between STS and Sea-Tac Airport is HK$2,546. But you better move fast. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sonoma County Airport (STS) to SEA?
The majority of flights can be canceled online, but whether or not you are charged a fee differs between airlines. If you do need to cancel your break, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Sonoma County Airport to Sea-Tac Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sonoma County Airport to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sonoma County Airport to SEA?
Forget about a movie marathon on this flight — it's just 1,000 kilometers from Windsor to SeaTac. Find your seat, enjoy the in-flight service and you'll be touching down before long.
Which airlines fly direct from STS to Sea-Tac Airport?
Flying straight from Sonoma County Airport (STS) to Seattle - Tacoma Intl. Airport (SEA) is easy with Alaska Airlines (AS). This leading airline offers 43 flights each month.
Are Sonoma County Airport (STS) to SEA flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Sonoma County Airport (STS) to SEA at the last minute could be your ticket to an awesome deal. However, you might miss out on a flight altogether! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

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