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$587+ Cheap flights from Santa Rosa (STS) to Australia

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
1 adult, Economy
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Cheap 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 August 28, 2025.

Round-trip from

$1,029
(American Airlines)

One-way from

$587
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$1,146
From Santa Rosa Sonoma County to Australia
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One-way flight from Santa Rosa Sonoma County to Australia
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Highest demand for flights based on searches. 12% potential increase in price ($171 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 28, 2025.

This American Airlines deal was found by Cheapflights users on 8/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1212:53 pmSTS - BNE
2 stops23h 32mAmerican Airlines
Sun 10/198:05 pmBNE - STS
2 stops33h 16mAmerican Airlines
Deal found 8/28$1,029
This Trip.com deal was found by Cheapflights users on 8/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1112:41 pmSTS - MEL
2 stops28h 09mMultiple Airlines
Sat 10/188:35 amMEL - STS
2 stops26h 23mMultiple Airlines
Deal found 8/27$1,189
This Trip.com deal was found by Cheapflights users on 8/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:00 amSTS - PER
2 stops33h 25mMultiple Airlines
Sat 10/188:45 amPER - STS
2 stops53h 48mMultiple Airlines
Deal found 8/27$1,328
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:00 amSTS - BNE
2 stops57h 55mMultiple Airlines
Sun 10/198:05 pmBNE - STS
1 stop20h 28mMultiple Airlines
Deal found 8/28$1,785
This Qantas Airways deal was found by Cheapflights users on 8/27. 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.
Mon 11/177:45 amSTS - MEL
1 stop30h 45mQantas Airways
Tue 12/212:00 pmMEL - STS
1 stop24h 19mQantas Airways
Deal found 8/27$1,840
This Qantas Airways deal was found by Cheapflights users on 8/27. 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 11/16:34 pmSTS - MEL
1 stop20h 56mMultiple Airlines
Sun 11/93:00 pmMEL - STS
3 stops26h 37mMultiple Airlines
Deal found 8/27$1,869
This Qantas Airways deal was found by Cheapflights users on 8/27. 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.
Mon 11/177:45 amSTS - MEL
1 stop30h 45mQantas Airways
Mon 12/14:25 pmMEL - STS
2 stops26h 31mQantas Airways
Deal found 8/27$1,875
This Qantas Airways deal was found by Cheapflights users on 8/28. 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 - MEL
1 stop22h 37mQantas Airways
Wed 1/712:00 pmMEL - STS
1 stop19h 56mQantas Airways
Deal found 8/28$1,882
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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 11/72:22 pmSTS - SYD
2 stops23h 38mAlaska Airlines
Tue 11/1111:20 amSYD - STS
1 stop25h 34mAlaska Airlines
Deal found 8/26$2,150
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:18 pmSTS - SYD
2 stops48h 42mAmerican Airlines
Tue 11/1111:20 amSYD - STS
1 stop17h 50mAmerican Airlines
Deal found 8/27$2,177
This oojo deal was found by Cheapflights users on 8/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:00 amSTS - SYD
2 stops32h 30mMultiple Airlines
Mon 1/57:15 pmSYD - STS
2 stops38h 58mMultiple Airlines
Deal found 8/27$2,373
This Air Tahiti Nui deal was found by Cheapflights users on 8/27. 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 stops38h 55mAir Tahiti Nui
Tue 11/118:55 amSYD - STS
3 stops27h 59mAir Tahiti Nui
Deal found 8/27$2,431

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 August 28, 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

Sun 10/12

12:53 pm-5:25 am

2 stops23h 32m

Brisbane

Sun 10/19

8:05 pm-12:21 pm

2 stops33h 16m

$1,029

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Sat 10/11

12:41 pm-10:50 am

2 stops28h 09m

Melbourne

Sat 10/18

8:35 am-4:58 pm

2 stops26h 23m

$1,189

Santa RosaPerth

STS - PER

STSPER

Santa Rosa Sonoma County

Sat 10/11

7:00 am-7:25 am

2 stops33h 25m

Perth

Sat 10/18

8:45 am-11:33 pm

2 stops53h 48m

$1,328

Santa RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

Sun 10/12

7:00 am-9:55 am

2 stops57h 55m

Brisbane

Sun 10/19

8:05 pm-11:33 pm

1 stop20h 28m

$1,785

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Wed 11/19

7:45 am-9:30 am

1 stop30h 45m

Melbourne

Tue 12/2

12:00 pm-5:19 pm

1 stop24h 19m

$1,840

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Mon 11/17

7:45 am-9:30 am

1 stop30h 45m

Melbourne

Tue 12/2

12:00 pm-5:19 pm

1 stop24h 19m

$1,840

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Tue 11/18

7:45 am-9:30 am

1 stop30h 45m

Melbourne

Tue 12/2

12:00 pm-5:19 pm

1 stop24h 19m

$1,840

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Sat 11/1

6:34 pm-9:30 am

1 stop20h 56m

Melbourne

Sun 11/9

3:00 pm-10:37 pm

3 stops26h 37m

$1,869

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Mon 11/17

7:45 am-9:30 am

1 stop30h 45m

Melbourne

Sun 11/30

9:05 pm-11:56 pm

2 stops45h 51m

$1,875

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 11/7

2:22 pm-9:00 am

2 stops23h 38m

Sydney Kingsford Smith

Tue 11/11

11:20 am-5:54 pm

1 stop25h 34m

$2,150

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/28

Showing 1-10 of 35 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, February is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $1,030). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $1,615). 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 $1,029, American Airlines can have you in Australia from Santa Rosa in 23h 32m. 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 - Sydney Kingsford Smith. You may also consider Santa Rosa Sonoma County - Melbourne or Santa Rosa Sonoma County - Brisbane.

  • 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, February is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $1,030). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $1,615). 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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