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$1,094+ Cheap flights from Santa Rosa (STS) to Australia

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
Jan 6 — Jan 131
Tue 1/6
Tue 1/13
1 adult, Economy
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Cheap flight deals from Santa Rosa to Australia

Cheapest flights from Santa Rosa to Australia
Explore the most affordable flight options available from Santa Rosa to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 7, 2025.

This Gurufare deal was found by Cheapflights users on 12/7. 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.
Mon 12/155:59 pmSTS - SYD
2 stops23h 36mMultiple Airlines
Mon 1/52:00 pmSYD - STS
2 stops29h 18mMultiple Airlines
Deal found 12/7$2,670
This Qantas Airways deal was found by Cheapflights users on 12/5. 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 12/243:53 pmSTS - SYD
2 stops31h 52mQantas Airways
Thu 1/15:45 pmSYD - STS
1 stop25h 33mQantas Airways
Deal found 12/5$3,147
This Qantas Airways deal was found by Cheapflights users on 12/7. 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.
Thu 12/256:37 pmSTS - BNE
2 stops24h 53mQantas Airways
Tue 1/66:05 amBNE - STS
2 stops27h 08mQantas Airways
Deal found 12/7$3,189
This Qantas Airways deal was found by Cheapflights users on 12/5. 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 12/243:53 pmSTS - SYD
2 stops29h 52mQantas Airways
Wed 12/3110:00 pmSYD - STS
2 stops45h 18mQantas Airways
Deal found 12/5$3,192
This Qantas Airways deal was found by Cheapflights users on 12/5. 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.
Thu 12/256:37 pmSTS - SYD
2 stops22h 53mQantas Airways
Fri 1/24:15 pmSYD - STS
2 stops27h 03mQantas Airways
Deal found 12/5$3,224
This Qatar Airways deal was found by Cheapflights users on 12/7. 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.
Thu 12/256:00 amSTS - BNE
2 stops46h 55mMultiple Airlines
Tue 1/68:40 pmBNE - STS
3 stops69h 19mMultiple Airlines
Deal found 12/7$3,230
This Qatar Airways deal was found by Cheapflights users on 12/6. 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.
Thu 12/256:00 amSTS - BNE
2 stops46h 55mMultiple Airlines
Thu 1/83:10 pmBNE - STS
2 stops49h 48mMultiple Airlines
Deal found 12/6$3,302
This Qantas Airways deal was found by Cheapflights users on 12/5. 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 12/236:37 pmSTS - SYD
2 stops27h 38mQantas Airways
Thu 1/15:45 pmSYD - STS
1 stop25h 33mQantas Airways
Deal found 12/5$3,342
This Qantas Airways deal was found by Cheapflights users on 12/5. 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.
Thu 12/256:37 pmSTS - SYD
2 stops23h 58mQantas Airways
Wed 12/3110:00 pmSYD - STS
2 stops45h 18mQantas Airways
Deal found 12/5$3,361
This Qantas Airways deal was found by Cheapflights users on 12/5. 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 12/236:37 pmSTS - SYD
2 stops24h 18mQantas Airways
Fri 1/24:15 pmSYD - STS
2 stops27h 03mQantas Airways
Deal found 12/5$3,374
This Qatar Airways deal was found by Cheapflights users on 12/5. 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 12/237:00 amSTS - SYD
2 stops52h 50mQatar Airways
Wed 12/313:50 pmSYD - STS
2 stops51h 28mQatar Airways
Deal found 12/5$3,430
This Qatar Airways deal was found by Cheapflights users on 12/5. 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.
Fri 12/267:00 amSTS - SYD
2 stops40h 50mQatar Airways
Wed 12/313:50 pmSYD - STS
2 stops51h 28mQatar Airways
Deal found 12/5$3,625

Find flight deals from Santa Rosa to Australia

Keep the following information in mind while searching for Santa Rosa to Australia flight deals. Data was last updated December 7, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,094
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$1,591
Provider with most accurate pricing for San Francisco-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Sydney Kingsford Smith flights.
Search Deals
From Santa Rosa Sonoma County to Australia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($182 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 Australia 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 December 7, 2025.
Use the filters below to find and compare flights from Santa Rosa to Australia that are best for you.

Fly from

Santa Rosa

Fly to

Australia

Route

Depart

Return

Price

Santa RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

Wed 1/21

12:55 pm-6:30 am

2 stops23h 35m

Brisbane

Wed 1/28

9:40 am-3:53 pm

2 stops24h 13m

$1,094

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 1/29

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

Sun 2/8

9:40 pm-9:56 am

2 stops31h 16m

$1,294

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 1/27

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

Fri 2/13

9:40 pm-10:11 am

2 stops31h 31m

$1,311

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 1/27

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

Sun 2/8

9:40 pm-9:56 am

2 stops31h 16m

$1,311

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 1/29

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

Thu 2/12

9:40 pm-10:11 am

2 stops55h 31m

$1,322

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 1/27

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

Sat 2/14

9:40 pm-10:11 am

2 stops31h 31m

$1,330

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 1/28

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

Sun 2/8

9:40 pm-9:56 am

2 stops31h 16m

$1,331

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 1/27

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

Thu 2/12

9:40 pm-10:11 am

2 stops55h 31m

$1,338

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 1/25

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

Fri 2/13

9:40 pm-10:11 am

2 stops31h 31m

$1,359

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 1/25

7:56 pm-7:45 pm

2 stops28h 49m

Sydney Kingsford Smith

Sat 2/14

9:40 pm-10:11 am

2 stops31h 31m

$1,377

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 46 results
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Best time to book a flight from Santa Rosa to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, January is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $223). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $839). 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 Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santa Rosa to Australia?

    Located just 7.2 mi from the city center, Santa Rosa Sonoma County (STS) is the airport most travelers will use when flying to Australia from Santa Rosa.

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

    For as low as $1,094, American Airlines can have you in Australia from Santa Rosa in 23h 35m. Santa Rosa and Australia are separated by a distance of 7070 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Santa Rosa to Australia?

    The most popular route from Santa Rosa to Australia is Santa Rosa Sonoma County - Melbourne. You may also consider Santa Rosa Sonoma County - Sydney Kingsford Smith or Santa Rosa Sonoma County - Canberra.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Santa Rosa to Australia 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 Australia?

    Currently, January is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $223). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $839). 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

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