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$453+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$866
(Alaska Airlines)

One-way from

$453
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$1,168
From Santa Rosa Sonoma County to Sydney Kingsford Smith
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One-way flight 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 ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/303:07 pmSTS - SYD
1 stop22h 58mAlaska Airlines
Wed 10/19:10 amSYD - STS
1 stop27h 02mAlaska Airlines
Deal found 6/30$866
This Qantas Airways deal was found by Cheapflights users on 6/30. 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.
Tue 9/23:07 pmSTS - SYD
1 stop23h 23mMultiple Airlines
Tue 9/305:45 pmSYD - STS
1 stop18h 27mMultiple Airlines
Deal found 6/30$1,796
This Qantas Airways deal was found by Cheapflights users on 6/29. 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.
Wed 12/241:30 pmSTS - SYD
2 stops28h 00mQantas Airways
Wed 12/315:45 pmSYD - STS
1 stop23h 50mQantas Airways
Deal found 6/29$1,913
This Air Tahiti Nui deal was found by Cheapflights users on 6/30. 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 Air Tahiti Nui is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:45 amSTS - SYD
3 stops42h 05mAir Tahiti Nui
Tue 11/118:55 amSYD - STS
3 stops27h 50mAir Tahiti Nui
Deal found 6/30$1,991
This Singapore Airlines deal was found by Cheapflights users on 6/30. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:25 pmSTS - SYD
2 stops31h 50mSingapore Airlines
Tue 11/117:10 pmSYD - STS
3 stops41h 35mSingapore Airlines
Deal found 6/30$2,584
This Qatar Airways deal was found by Cheapflights users on 6/30. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:00 amSTS - SYD
2 stops54h 15mQatar Airways
Tue 9/302:50 pmSYD - STS
2 stops46h 18mQatar Airways
Deal found 6/30$2,737

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 July 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

Sat 8/30

3:07 pm-7:05 am

1 stop22h 58m

Sydney Kingsford Smith

Mon 9/29

9:10 am-7:12 pm

1 stop27h 02m

$866

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 9/2

3:07 pm-7:30 am

1 stop23h 23m

Sydney Kingsford Smith

Tue 9/30

5:45 pm-7:12 pm

1 stop18h 27m

$1,796

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 12/24

1:30 pm-12:30 pm

2 stops28h 00m

Sydney Kingsford Smith

Wed 12/31

5:45 pm-10:35 pm

1 stop23h 50m

$1,913

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 11/7

7:45 am-8:50 pm

3 stops42h 05m

Sydney Kingsford Smith

Tue 11/11

8:55 am-5:45 pm

3 stops27h 50m

$1,991

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 11/7

6:25 pm-9:15 pm

2 stops31h 50m

Sydney Kingsford Smith

Tue 11/11

7:10 pm-5:45 pm

3 stops41h 35m

$2,584

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 9/3

7:00 am-6:15 am

2 stops54h 15m

Sydney Kingsford Smith

Wed 10/1

2:50 pm-8:08 pm

2 stops46h 18m

$2,737

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 10/14

5:34 pm-8:05 am

1 stop20h 31m

$453

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 10/14

10:47 am-7:45 pm

3 stops38h 58m

$974

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 8/26

3:07 pm-9:15 am

2 stops25h 08m

$1,074

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 12/28

1:30 pm-7:25 am

1 stop22h 55m

$1,096

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 11 results
1
2

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 $1,040). Flying from Santa Rosa to Sydney in December is currently the most expensive (average of $1,630). 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.

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 July 1, 2025.
Read through reviews of airlines operating flights from Santa Rosa to Sydney, such as Air Tahiti Nui, Singapore Airlines, and Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very good
64 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Singapore Airlines
8.1
Very good
1,320 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Alaska Airlines
8.0
Very good
10,000 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Hawaiian Airlines
7.8
Good
2,539 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Qantas Airways
7.5
Good
870 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Crew

9.0

Boarding

8.7

Food

7.8

Overall

8.7

Entertainment

7.3

Comfort

8.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

  • What are the cheapest airlines to fly from Santa Rosa to Sydney one-way?

    One-way options have recently been found by users for as low as $453 on Alaska Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $974 and Qantas Airways from $1,074 one-way.

  • 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 $1,040). Flying from Santa Rosa to Sydney in December is currently the most expensive (average of $1,630). 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
Manly
Coogee

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