Cheap Flights from Santa Rosa (STS) to Seattle (SEA) from HK$1,282~

View HK$1,282 flight on Wed, 10 Dec 2025Opens in a new window

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Seattle-Tacoma International Airport (SEA)

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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$1,282 for one-way flights and HK$2,779 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 21 Jan - Wed, 28 Jan
STS
Santa Rosa
SEA
Seattle
HK$2,779 Return, found 3 days ago
HK$2,779
Return
found 3 days ago
Select American Airlines flight, departing Wed, 21 Jan from Santa Rosa to Seattle, returning Wed, 28 Jan, priced at HK$2,779 found 3 days ago
American Airlines
Wed, 21 Jan - Wed, 28 Jan
STS
Santa Rosa
SEA
Seattle
HK$3,564 Return, found 3 days ago
HK$3,564
Return
found 3 days ago
Select American Airlines flight, departing Wed, 21 Jan from Santa Rosa to Seattle, returning Wed, 28 Jan, priced at HK$3,564 found 3 days ago
American Airlines
Sat, 18 Oct - Wed, 22 Oct
STS
Santa Rosa
SEA
Seattle
HK$4,047 Return, found 17 hours ago
HK$4,047
Return
found 17 hours ago
Select American Airlines flight, departing Sat, 18 Oct from Santa Rosa to Seattle, returning Wed, 22 Oct, priced at HK$4,047 found 17 hours ago
Alaska Airlines
Wed, 21 Jan - Wed, 28 Jan
STS
Santa Rosa
SEA
Seattle
HK$4,133 Return, found 3 days ago
HK$4,133
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 21 Jan from Santa Rosa to Seattle, returning Wed, 28 Jan, priced at HK$4,133 found 3 days ago
Alaska Airlines
Wed, 21 Jan - Wed, 28 Jan
STS
Santa Rosa
SEA
Seattle
HK$4,174 Return, found 3 days ago
HK$4,174
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 21 Jan from Santa Rosa to Seattle, returning Wed, 28 Jan, priced at HK$4,174 found 3 days ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
STS
Santa Rosa
SEA
Seattle
HK$4,304 Return, found 6 days ago
HK$4,304
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Santa Rosa to Seattle, returning Sat, 13 Dec, priced at HK$4,304 found 6 days ago
American Airlines
Sat, 18 Oct - Wed, 22 Oct
STS
Santa Rosa
SEA
Seattle
HK$4,305 Return, found 17 hours ago
HK$4,305
Return
found 17 hours ago
Select American Airlines flight, departing Sat, 18 Oct from Santa Rosa to Seattle, returning Wed, 22 Oct, priced at HK$4,305 found 17 hours ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
STS
Santa Rosa
SEA
Seattle
HK$4,348 Return, found 6 days ago
HK$4,348
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Santa Rosa to Seattle, returning Sat, 13 Dec, priced at HK$4,348 found 6 days ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
STS
Santa Rosa
SEA
Seattle
HK$4,379 Return, found 6 days ago
HK$4,379
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Santa Rosa to Seattle, returning Sat, 13 Dec, priced at HK$4,379 found 6 days ago
American Airlines
Wed, 10 Dec - Sat, 13 Dec
STS
Santa Rosa
SEA
Seattle
HK$4,423 Return, found 6 days ago
HK$4,423
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from Santa Rosa to Seattle, returning Sat, 13 Dec, priced at HK$4,423 found 6 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$1,047 - HK$4,251 per traveller.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from HK$4,047
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from HK$4,047

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$2,779. 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.

Travel information

Travel information

Origin airport
Sonoma County
Destination airport
Seattle - Tacoma Intl.
Airlines serving
American Airlines
Return price
HK$2,779
Distance
988 km
Average flight time
2 hours 5 mins

Book with confidence

Book with confidence

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$1,282 now!

 

Flights from Windsor to Seattle

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