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$968+ Cheap flights from Santa Rosa (STS) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
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Cheap flight deals from Santa Rosa to Sydney

Cheapest flights from Santa Rosa to Sydney
Explore the most affordable flight options available from Santa Rosa to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 4, 2025.

This Gurufare deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/155:59 pmSTS - SYD
2 stops23h 36mMultiple Airlines
lun. 1/52:00 pmSYD - STS
2 stops29h 18mMultiple Airlines
Deal found 12/3$2,411
This Alaska Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/186:37 pmSTS - SYD
1 stop19h 23mAlaska Airlines
dom. 1/1111:20 amSYD - STS
1 stop17h 36mAlaska Airlines
Deal found 12/4$2,645
This Qantas Airways deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:37 pmSTS - SYD
2 stops25h 18mQantas Airways
jue. 1/15:45 pmSYD - STS
1 stop25h 33mQantas Airways
Deal found 12/4$3,341
This Alaska Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/203:53 pmSTS - SYD
1 stop22h 07mAlaska Airlines
dom. 1/1111:20 amSYD - STS
1 stop17h 36mAlaska Airlines
Deal found 12/4$3,420
This Alaska Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:37 pmSTS - SYD
1 stop19h 23mAlaska Airlines
jue. 1/111:20 amSYD - STS
1 stop22h 53mAlaska Airlines
Deal found 12/3$3,430
This Qantas Airways deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:37 pmSTS - SYD
2 stops24h 18mMultiple Airlines
jue. 1/18:10 pmSYD - STS
2 stops23h 08mMultiple Airlines
Deal found 12/4$3,481
This Alaska Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/186:37 pmSTS - SYD
1 stop19h 23mAlaska Airlines
lun. 1/1211:20 amSYD - STS
1 stop17h 36mAlaska Airlines
Deal found 12/4$3,595
This Qatar Airways deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/256:00 amSTS - SYD
2 stops41h 50mMultiple Airlines
vie. 1/99:15 pmSYD - STS
3 stops69h 44mMultiple Airlines
Deal found 12/4$3,644
This Qatar Airways deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/256:37 pmSTS - SYD
3 stops56h 48mMultiple Airlines
jue. 1/89:40 pmSYD - STS
2 stops44h 18mMultiple Airlines
Deal found 12/3$3,707

Find flight deals from Santa Rosa to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,219
(Alaska Airlines)

One-way from

$968
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$1,591
Provider with most accurate pricing for Santa Rosa Sonoma County-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Sydney Kingsford Smith flights.
Search Deals
From Santa Rosa Sonoma County to Sydney Kingsford Smith
Search Deals
One-way flight from Santa Rosa Sonoma County to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 4, 2025.
Use the filters below to find and compare flights from Santa Rosa to Sydney that are best for you.

Fly from

Santa Rosa

Fly to

Sydney

Route

Depart

Return

Price

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

lun. 1/12

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

dom. 2/1

9:40 pm-9:56 am

2 stops31h 16m

$1,219

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

jue. 2/12

7:48 pm-7:45 pm

2 stops28h 57m

Sydney Kingsford Smith

dom. 2/22

9:40 pm-10:11 am

2 stops31h 31m

$1,219

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mié. 2/11

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

dom. 2/22

9:40 pm-10:11 am

2 stops31h 31m

$1,235

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

lun. 2/9

7:56 pm-7:45 pm

2 stops52h 49m

Sydney Kingsford Smith

dom. 2/22

9:40 pm-10:11 am

2 stops31h 31m

$1,240

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mar. 1/13

7:00 am-7:45 pm

2 stops65h 45m

Sydney Kingsford Smith

jue. 1/29

9:40 pm-10:58 pm

2 stops20h 18m

$1,246

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mar. 1/13

7:00 am-7:45 pm

2 stops65h 45m

Sydney Kingsford Smith

dom. 2/1

9:40 pm-9:56 am

2 stops31h 16m

$1,246

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

vie. 1/16

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

sáb. 1/31

9:40 pm-9:56 am

2 stops31h 16m

$1,257

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

lun. 2/9

7:56 pm-7:45 pm

2 stops52h 49m

Sydney Kingsford Smith

vie. 2/20

9:40 pm-10:11 am

2 stops31h 31m

$1,259

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

jue. 2/12

7:48 pm-7:45 pm

2 stops28h 57m

Sydney Kingsford Smith

jue. 2/19

9:40 pm-11:51 pm

2 stops21h 11m

$1,260

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

dom. 2/8

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

sáb. 2/21

9:40 pm-10:11 am

2 stops55h 31m

$1,265

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 23 results
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Compare providers for flights from Santa Rosa to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Santa Rosa to Sydney in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Santa Rosa-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Santa Rosa-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Santa Rosa-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Santa Rosa-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Santa Rosa to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Santa Rosa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Santa Rosa to Sydney

What is the cheapest month to book a flight from Santa Rosa to Sydney?

Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Sydney (average of $498). Flying from Santa Rosa to Sydney in December is currently the most expensive (average of $836). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Santa Rosa to Sydney?

    Airlines like Alaska Airlines fly from Santa Rosa to Sydney in about 28h 49m. The time it takes to get you to your destination can typically vary by up to . There are 7430 mi between Santa Rosa and Sydney.

  • Can I find deals for flights from Santa Rosa to Sydney that include hotel bookings?

    Yes. In addition to deals on Santa Rosa to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Rosa to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Sydney.

  • Can I find deals for business class flights from Santa Rosa to Sydney?

    Yes. Cheapflights offers flight deals from Santa Rosa to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Santa Rosa to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Sydney (average of $498). Flying from Santa Rosa to Sydney in December is currently the most expensive (average of $836). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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