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$1,540+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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 April 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,540
(Qantas Airways)

Popular in

December

Cheapest in

August

Average price

$1,171
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. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 15, 2025.

This Qantas Airways deal was found by Cheapflights users on 4/15. 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 8/303:00 pmSTS - SYD
1 stop23h 30mMultiple Airlines
Tue 9/95:45 pmSYD - STS
1 stop18h 14mMultiple Airlines
Deal found 4/15$1,540
This Qantas Airways deal was found by Cheapflights users on 4/14. 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.
Tue 6/36:40 pmSTS - SYD
2 stops22h 00mQantas Airways
Wed 6/115:10 pmSYD - STS
2 stops23h 20mQantas Airways
Deal found 4/14$1,813
This Qatar Airways deal was found by Cheapflights users on 4/14. 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.
Tue 6/37:00 amSTS - SYD
2 stops41h 10mQatar Airways
Wed 6/115:45 pmSYD - STS
3 stops41h 22mQatar Airways
Deal found 4/14$2,983

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 April 15, 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

Sat 8/30

3:00 pm-7:30 am

1 stop23h 30m

Sydney Kingsford Smith

Tue 9/9

5:45 pm-6:59 pm

1 stop18h 14m

$1,540

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 6/3

6:40 pm-9:40 am

2 stops22h 00m

Sydney Kingsford Smith

Wed 6/11

5:10 pm-11:30 pm

2 stops23h 20m

$1,813

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 6/3

7:00 am-5:10 pm

2 stops41h 10m

Sydney Kingsford Smith

Wed 6/11

5:45 pm-6:07 pm

3 stops41h 22m

$2,983

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 8/12

7:23 pm-7:30 am

1 stop19h 07m

$5,212

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

  • 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, February is the cheapest month in which you can book a flight from Santa Rosa to Sydney (average of $1,046). 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 April 15, 2025.
Qantas Airways
7.5
Good
818 reviews

Boarding

7.6

Entertainment

7.2

Comfort

7.4

Overall

7.5

Crew

8.1

Food

6.9

Reviews

1 / 20
8.0
Excellent

Tin,Feb 2025

LAX - MEL

The passengers had to wait in lines more than 40 minutes for boarding. The foods was okay to eat if you were hungry to dead . Thank you
Qantas Airways
7.5
Good
818 reviews
Qantas Airways
7.5
Good
818 reviews

Boarding

7.6

Entertainment

7.2

Comfort

7.4

Overall

7.5

Crew

8.1

Food

6.9

Reviews

1 / 20
8.0
Excellent

Tin,Feb 2025

LAX - MEL

The passengers had to wait in lines more than 40 minutes for boarding. The foods was okay to eat if you were hungry to dead . Thank you
Qatar Airways
7.4
Good
3,551 reviews
Qantas Airways
7.5
Good
818 reviews

Boarding

7.6

Entertainment

7.2

Comfort

7.4

Overall

7.5

Crew

8.1

Food

6.9

Reviews

1 / 20
8.0
Excellent

Tin,Feb 2025

LAX - MEL

The passengers had to wait in lines more than 40 minutes for boarding. The foods was okay to eat if you were hungry to dead . Thank you

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, February is the cheapest month in which you can book a flight from Santa Rosa to Sydney (average of $1,046). 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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