Title: Cheap Flights from Sydney (SYD) to Santa Rosa (STS) - Expedia.ca ![Annual Sonoma Hot Air Balloon Classic (Windsor, CA)](https://images.trvl-media.com/place/9542/b4ccdb92-b048-45af-b643-5a9cc297deeb.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Rick Alvarez ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Sydney (SYD) to Santa Rosa (STS) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Sydney Airport (SYD) to Santa Rosa, CA (STS-Sonoma County) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:syd,to:sts,departure:19/10/2025TANYT&leg2=from:sts,to:syd,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Qantas Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QF.svg) Qantas Airways [](https://www.expedia.ca/Flights-Search?leg1=from:syd,to:sts,departure:19/10/2025TANYT&leg2=from:sts,to:syd,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QF"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from Sydney Airport to Sonoma County Airport? > The lowest price advertised for a round-trip flight between Mascot Airport and STS is . But you better get moving. This figure is taken from fares available 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 Kingsford Smith Intl. Airport (SYD) to Sonoma County Airport? > Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Mascot Airport to Sonoma County Airport that have flexible change policies? > Many airlines offer the option to reschedule your flight without charging a fee. All you pay is the cost difference between flights. When searching for SYD to Sonoma County Airport (STS) flights, you'll find a "No change fees" box for you to pick. ### How far is the flight from Kingsford Smith Intl. Airport (SYD) to Sonoma County Airport (STS)? > The distance is around 12,000 kilometres. Eye mask? Check. Toothbrush? Double check. We recommend you pack all the travel comforts for this long-haul Sydney to Windsor flight. ### Which airlines fly direct from SYD to Sonoma County Airport? > If you want to fly straight from Sydney Airport to Sonoma County Airport (STS), you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly between these airports. ### Are Kingsford Smith Intl. Airport (SYD) to Sonoma County Airport flight tickets cheaper when they're purchased at the last minute? > Late planners can occasionally pick up a bargain, with some of the cheapest airfares from SYD to Sonoma County Airport (STS) showing up a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline releases prices so far in advance. ## Travel information | Origin airport | Kingsford Smith Intl. | | --- | --- | | Destination airport | Sonoma County | | Distance | 11896 km | ## Book with confidence ### Sydney to Windsor Flights **The easy way to book your flights from Sydney to Santa Rosa**  With Expedia, it’s simple to find and book flights to Santa Rosa from Sydney whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Sonoma County, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Sydney to Santa Rosa today, tomorrow, or this week.   **Save dollars with cheap flights from Kingsford Smith Intl., SYD to Sonoma County, STS**  Sort your search results by price to find great deals on your flight from Sydney to Santa Rosa—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Santa Rosa from Sydney currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Santa Rosa   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Santa Rosa from Sydney**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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