Cheap Flights from San Francisco (SFO) to Santa Rosa (STS) from HK$2,488~

View HK$2,488 flight on Wed, 29 Oct 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Santa Rosa, CA (STS-Sonoma County)

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Find Cheap Flights from San Francisco (SFO) to Santa Rosa (STS)

Prices were available within the past 7 days and start at HK$2,488 for one-way flights and HK$5,169 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 16 Sep - Tue, 23 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,169 Return, found 5 days ago
HK$5,169
Return
found 5 days ago
Select United flight, departing Tue, 16 Sep from San Francisco to Santa Rosa, returning Tue, 23 Sep, priced at HK$5,169 found 5 days ago
United
Tue, 16 Sep - Tue, 23 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,212 Return, found 5 days ago
HK$5,212
Return
found 5 days ago
Select United flight, departing Tue, 16 Sep from San Francisco to Santa Rosa, returning Tue, 23 Sep, priced at HK$5,212 found 5 days ago
United
Sat, 20 Sep - Mon, 22 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,221 Return, found 5 days ago
HK$5,221
Return
found 5 days ago
Select United flight, departing Sat, 20 Sep from San Francisco to Santa Rosa, returning Mon, 22 Sep, priced at HK$5,221 found 5 days ago
United
Tue, 16 Sep - Tue, 23 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,245 Return, found 5 days ago
HK$5,245
Return
found 5 days ago
Select United flight, departing Tue, 16 Sep from San Francisco to Santa Rosa, returning Tue, 23 Sep, priced at HK$5,245 found 5 days ago
American Airlines
Sat, 20 Sep - Mon, 22 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,264 Return, found 5 days ago
HK$5,264
Return
found 5 days ago
Select American Airlines flight, departing Sat, 20 Sep from San Francisco to Santa Rosa, returning Mon, 22 Sep, priced at HK$5,264 found 5 days ago
United
Sat, 20 Sep - Mon, 22 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,265 Return, found 5 days ago
HK$5,265
Return
found 5 days ago
Select United flight, departing Sat, 20 Sep from San Francisco to Santa Rosa, returning Mon, 22 Sep, priced at HK$5,265 found 5 days ago
American Airlines
Mon, 15 Sep - Mon, 22 Sep
SFO
San Francisco
STS
Santa Rosa
HK$5,297 Return, found 5 days ago
HK$5,297
Return
found 5 days ago
Select American Airlines flight, departing Mon, 15 Sep from San Francisco to Santa Rosa, returning Mon, 22 Sep, priced at HK$5,297 found 5 days ago
United
Wed, 29 Oct - Fri, 31 Oct
SFO
San Francisco
STS
Santa Rosa
HK$5,331 Return, found 1 day ago
HK$5,331
Return
found 1 day ago
Select United flight, departing Wed, 29 Oct from San Francisco to Santa Rosa, returning Fri, 31 Oct, priced at HK$5,331 found 1 day ago
United
Wed, 29 Oct - Fri, 31 Oct
SFO
San Francisco
STS
Santa Rosa
HK$5,363 Return, found 1 day ago
HK$5,363
Return
found 1 day ago
Select United flight, departing Wed, 29 Oct from San Francisco to Santa Rosa, returning Fri, 31 Oct, priced at HK$5,363 found 1 day ago
Delta
Wed, 29 Oct - Fri, 31 Oct
SFO
San Francisco
STS
Santa Rosa
HK$5,524 Return, found 1 day ago
HK$5,524
Return
found 1 day ago
Select Delta flight, departing Wed, 29 Oct from San Francisco to Santa Rosa, returning Fri, 31 Oct, priced at HK$5,524 found 1 day ago

Find the cheapest month to fly from San Francisco (SFO) to Santa Rosa (STS)

February is typically the cheapest month to fly

From HK$1,265 - HK$3,746 per traveller.

Graph displaying average flight prices per month

San Francisco to Santa Rosa route information
Origin airport
San Francisco Intl.
Destination airport
Sonoma County
Airlines serving
American Airlines
Return price
HK$5,169
Distance
105 km

Flights from San Francisco to Windsor

Book cheap flights from San Francisco (SFO) to Windsor (STS) 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 San Francisco (SFO) to Windsor (STS) 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 San Francisco (SFO) to Windsor (STS) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

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

If you would like to book flights to Windsor more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Windsor is HK$2,488 now!

 

Frequently asked questions

How much is a flight from SFO to STS?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey from San Francisco Intl. Airport (SFO) to Sonoma County Airport was HK$5,169. Fares this cheap don't last forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Intl. Airport (SFO) to STS?
Most flights can be conveniently canceled online, but whether you are charged a fee all comes down to your airline. If you do have to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from San Francisco Airport to Sonoma County 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 San Francisco Airport to Sonoma County Airport (STS) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from SFO to STS?
Lasting around 4 hours and 8 minutes, the flight between San Francisco Intl. Airport (SFO) and Sonoma County Airport is a good opportunity to do some last-minute planning. How about using the time to read up on what to do in Windsor?
How far is the flight from SFO to Sonoma County Airport (STS)?
A flight distance of just 110 kilometers separates San Francisco and Windsor. Once you're up in the air, you won't get a chance to do much more than listen to some short podcasts.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS)?
There are no direct flights, so you'll need to make at least one stop between SFO and Sonoma County Airport. Use the layover time to stretch your legs and take a break.
Are SFO to STS flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally find a bargain, with some super cheap fares from SFO to Sonoma County Airport cropping up a few weeks before the departure date. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines release prices so far in advance.

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