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$1,259+ Cheap flights from Santa Rosa (STS) to Sydney (SYD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap 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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,259
(Alaska Airlines)

Popular in

December

Cheapest in

August

Average price

$1,040
Provider with most accurate pricing for Santa Rosa Sonoma County-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Sydney Kingsford Smith flights.
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From Santa Rosa Sonoma County to Sydney Kingsford Smith
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Highest demand for flights based on searches. 13% potential increase in price ($176 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 1, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 6/137:23 pmSTS - SYD
2 stops31h 22mAlaska Airlines
Sun 6/229:40 pmSYD - STS
2 stops37h 27mAlaska Airlines
Deal found 4/29$1,259
This Qantas Airways deal was found by Cheapflights users on 4/29. 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.
Sat 6/143:05 pmSTS - SYD
1 stop23h 25mQantas Airways
Sun 6/225:45 pmSYD - STS
1 stop34h 21mQantas Airways
Deal found 4/29$2,102
This Qatar Airways deal was found by Cheapflights users on 4/29. 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.
Sun 6/157:00 amSTS - SYD
3 stops43h 55mQatar Airways
Sat 6/218:45 pmSYD - STS
2 stops43h 59mQatar Airways
Deal found 4/29$3,281
This Qantas Airways deal was found by Cheapflights users on 4/30. 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.
Sat 12/201:30 pmSTS - SYD
1 stop22h 55mMultiple Airlines
Sat 1/35:10 pmSYD - STS
2 stops24h 25mMultiple Airlines
Deal found 4/30$3,462
This KAYAK deal was found by Cheapflights users on 5/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 amSTS - SYD
3 stops39h 45mSingapore Airlines
Fri 10/2412:00 pmSYD - STS
2 stops28h 35mSingapore Airlines
Deal found 5/1$4,340

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 May 1, 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

Fri 6/13

7:23 pm-7:45 pm

2 stops31h 22m

Sydney Kingsford Smith

Sun 6/22

9:40 pm-6:07 pm

2 stops37h 27m

$1,259

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sat 6/14

3:05 pm-7:30 am

1 stop23h 25m

Sydney Kingsford Smith

Sun 6/22

5:45 pm-11:06 am

1 stop34h 21m

$2,102

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 6/15

7:00 am-7:55 pm

3 stops43h 55m

Sydney Kingsford Smith

Sat 6/21

8:45 pm-11:44 pm

2 stops43h 59m

$3,281

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 10/7

8:00 am-5:45 pm

3 stops39h 45m

Sydney Kingsford Smith

Fri 10/24

12:00 pm-10:35 pm

2 stops28h 35m

$4,340

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/6

7:28 pm-7:05 am

1 stop18h 37m

$6,512

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/6

12:45 pm-6:05 am

2 stops24h 20m

$6,513

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 May.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Santa Rosa-Sydney flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, March is the cheapest month in which you can book a flight from Santa Rosa to Sydney (average of $1,043). Flying from Santa Rosa to Sydney in December is currently the most expensive (average of $1,643). 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated May 1, 2025.
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.7

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Singapore Airlines
8.1
Very good
1,292 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.7

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Alaska Airlines
8.0
Very good
9,968 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.7

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Qantas Airways
7.5
Good
829 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.7

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.
Qatar Airways
7.4
Good
3,563 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.7

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.

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.

  • 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, March is the cheapest month in which you can book a flight from Santa Rosa to Sydney (average of $1,043). Flying from Santa Rosa to Sydney in December is currently the most expensive (average of $1,643). 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 Santa Rosa?

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

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