$106 Cheap Flights from San Francisco (SFO) to Santa Rosa (STS)

View $106 flight on Wed, Dec 10, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $106 for one-way flights and $183 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Dec 9 - Wed, Dec 10
SFO
San Francisco
STS
Santa Rosa
$183 Roundtrip, found 4 days ago
$183
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 9 from San Francisco to Santa Rosa, returning Wed, Dec 10, priced at $183 found 4 days ago
Hawaiian Airlines
Wed, Dec 3 - Tue, Dec 16
SFO
San Francisco
STS
Santa Rosa
$198 Roundtrip, found 2 days ago
$198
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from San Francisco to Santa Rosa, returning Tue, Dec 16, priced at $198 found 2 days ago
Hawaiian Airlines
Tue, Dec 2 - Tue, Dec 16
SFO
San Francisco
STS
Santa Rosa
$203 Roundtrip, found 2 days ago
$203
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 2 from San Francisco to Santa Rosa, returning Tue, Dec 16, priced at $203 found 2 days ago
Alaska Airlines
Tue, Dec 9 - Mon, Dec 22
SFO
San Francisco
STS
Santa Rosa
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Dec 9 from San Francisco to Santa Rosa, returning Mon, Dec 22, priced at $212 found 2 days ago
Hawaiian Airlines
Tue, Dec 2 - Mon, Dec 15
SFO
San Francisco
STS
Santa Rosa
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 2 from San Francisco to Santa Rosa, returning Mon, Dec 15, priced at $217 found 2 days ago
Hawaiian Airlines
Tue, Feb 24 - Tue, Mar 10
SFO
San Francisco
STS
Santa Rosa
$222 Roundtrip, found 12 hours ago
$222
Roundtrip
found 12 hours ago
Select Hawaiian Airlines flight, departing Tue, Feb 24 from San Francisco to Santa Rosa, returning Tue, Mar 10, priced at $222 found 12 hours ago
Hawaiian Airlines
Thu, Dec 4 - Mon, Dec 15
SFO
San Francisco
STS
Santa Rosa
$227 Roundtrip, found 2 days ago
$227
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Thu, Dec 4 from San Francisco to Santa Rosa, returning Mon, Dec 15, priced at $227 found 2 days ago
Hawaiian Airlines
Tue, Feb 24 - Wed, Mar 11
SFO
San Francisco
STS
Santa Rosa
$232 Roundtrip, found 12 hours ago
$232
Roundtrip
found 12 hours ago
Select Hawaiian Airlines flight, departing Tue, Feb 24 from San Francisco to Santa Rosa, returning Wed, Mar 11, priced at $232 found 12 hours ago
Hawaiian Airlines
Thu, Feb 26 - Wed, Mar 11
SFO
San Francisco
STS
Santa Rosa
$242 Roundtrip, found 12 hours ago
$242
Roundtrip
found 12 hours ago
Select Hawaiian Airlines flight, departing Thu, Feb 26 from San Francisco to Santa Rosa, returning Wed, Mar 11, priced at $242 found 12 hours ago
American Airlines
Sat, Feb 14 - Mon, Feb 16
SFO
San Francisco
STS
Santa Rosa
$562 Roundtrip, found 6 days ago
$562
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Feb 14 from San Francisco to Santa Rosa, returning Mon, Feb 16, priced at $562 found 6 days ago

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

February is typically the cheapest month to fly

From $161 - $478 per traveler.

Alternative airports near Santa Rosa

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

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $332
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $332
Flights from San Francisco (SFO) to Santa Rosa (STS)
Origin airport
San Francisco Intl.
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$182
Distance
65 mi

San Francisco to Santa Rosa Flights

The cheapest times to fly from San Francisco to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Santa Rosa are during the month of December. You can find some of the cheapest flights from San Francisco to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Santa Rosa

Sunday is one of the best days to book for cheap flights from San Francisco to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $106 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS) cost?
Snag a cheap one-way flight from $106 or cheap return flight from $183 from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS)?
The cheapest month to fly from SFO to STS is December, when demand is low. Off-peak season is typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS)?
To find the cheapest airline that'll fly you from SFO to STS, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS)?
There aren't any daily nonstop flights from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from SFO to STS?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from SFO to STS?
United Airlines has the best track record for on-time direct flights from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS), with an on-time rating of 86%. Use the Expedia App to view your flight status before you go and get real-time updates about any changes.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS)?
Select a flight from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS) last-minute?
Last-minute bookings from SFO to STS are typically more expensive. For the cheapest rates, start looking for flights well in advance. That being said, if your travel plans are flexible, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a SFO to STS flight and hotel package?
Booking a SFO to STS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Sonoma County Airport (STS)?
Typically, you can reschedule or cancel your SFO to STS flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you want more information, visit our Customer Service portal.

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*Available to One Key members.