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$588+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
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 septiembre 16, 2025.

Round-trip from

$1,047
(Alaska Airlines)

One-way from

$588
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$1,143
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. 13% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
dom. 12/142:21 pmSTS - SYD
2 stops34h 24mAlaska Airlines
vie. 1/169:40 pmSYD - STS
2 stops35h 08mAlaska Airlines
Deal found 9/16$1,047
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
dom. 12/142:21 pmSTS - SYD
2 stops34h 24mAlaska Airlines
mié. 1/149:40 pmSYD - STS
2 stops35h 08mAlaska Airlines
Deal found 9/16$1,065
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/306:34 pmSTS - MEL
2 stops24h 11mMultiple Airlines
jue. 11/62:15 pmMEL - STS
2 stops27h 22mMultiple Airlines
Deal found 9/15$1,074
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
dom. 12/142:21 pmSTS - SYD
2 stops34h 24mAlaska Airlines
jue. 1/159:40 pmSYD - STS
2 stops35h 08mAlaska Airlines
Deal found 9/16$1,084
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 12/168:00 amSTS - SYD
2 stops40h 45mAlaska Airlines
mié. 1/149:40 pmSYD - STS
2 stops20h 06mAlaska Airlines
Deal found 9/16$1,099
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/168:00 amSTS - SYD
2 stops40h 45mAlaska Airlines
dom. 1/119:40 pmSYD - STS
2 stops32h 27mAlaska Airlines
Deal found 9/15$1,109
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 12/168:00 amSTS - SYD
2 stops40h 45mAlaska Airlines
vie. 1/169:40 pmSYD - STS
2 stops20h 06mAlaska Airlines
Deal found 9/16$1,117
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
lun. 12/156:43 pmSTS - SYD
2 stops54h 02mAlaska Airlines
mar. 1/139:40 pmSYD - STS
2 stops20h 06mAlaska Airlines
Deal found 9/16$1,124
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
lun. 12/156:43 pmSTS - SYD
2 stops54h 02mAlaska Airlines
dom. 1/119:40 pmSYD - STS
2 stops32h 27mAlaska Airlines
Deal found 9/16$1,134
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
dom. 12/145:59 pmSTS - SYD
1 stop20h 01mAlaska Airlines
sáb. 1/1711:15 amSYD - STS
1 stop20h 41mAlaska Airlines
Deal found 9/16$1,136
This SmartFares deal was found by Cheapflights users on 9/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/297:45 amSTS - MEL
2 stops33h 10mMultiple Airlines
mié. 11/58:35 amMEL - STS
2 stops28h 19mMultiple Airlines
Deal found 9/14$1,178
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/307:45 amSTS - MEL
2 stops53h 25mCathay Pacific
mié. 11/512:45 amMEL - STS
2 stops40h 52mCathay Pacific
Deal found 9/15$1,403

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 septiembre 16, 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 RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

dom. 12/14

2:21 pm-7:45 pm

2 stops34h 24m

Sydney Kingsford Smith

lun. 1/12

9:40 pm-1:48 pm

2 stops35h 08m

$1,047

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

jue. 10/30

6:34 pm-12:45 pm

2 stops24h 11m

Melbourne

jue. 11/6

2:15 pm-10:37 pm

2 stops27h 22m

$1,074

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mar. 12/16

8:00 am-7:45 pm

2 stops40h 45m

Sydney Kingsford Smith

jue. 1/15

9:40 pm-10:46 pm

2 stops20h 06m

$1,099

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mar. 12/16

8:00 am-7:45 pm

2 stops40h 45m

Sydney Kingsford Smith

mar. 1/13

9:40 pm-10:46 pm

2 stops20h 06m

$1,099

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mar. 12/16

8:00 am-7:45 pm

2 stops40h 45m

Sydney Kingsford Smith

vie. 1/16

9:40 pm-10:46 pm

2 stops20h 06m

$1,117

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

lun. 12/15

6:43 pm-7:45 pm

2 stops54h 02m

Sydney Kingsford Smith

mar. 1/13

9:40 pm-10:46 pm

2 stops20h 06m

$1,124

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

mié. 10/29

7:45 am-10:55 am

2 stops33h 10m

Melbourne

mié. 11/5

8:35 am-5:54 pm

2 stops28h 19m

$1,178

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

dom. 12/14

8:03 pm-7:45 pm

2 stops28h 42m

Sydney Kingsford Smith

mié. 12/24

9:40 pm-9:24 am

2 stops30h 44m

$1,276

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

sáb. 12/13

5:59 pm-9:00 am

1 stop20h 01m

Sydney Kingsford Smith

dom. 12/28

11:20 am-10:34 am

1 stop18h 14m

$1,286

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

jue. 12/11

2:21 pm-9:00 am

2 stops23h 39m

Sydney Kingsford Smith

dom. 12/28

11:20 am-10:34 am

1 stop18h 14m

$1,290

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 49 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, March is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $1,032). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $1,627). 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 $1,047, Alaska Airlines can have you in Australia from Santa Rosa in 34h 24m. Santa Rosa and Australia are separated by a distance of 7430 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $588. Users have also found prices from $588 and $1,096 on American Airlines and Qatar Airways, respectively.

  • 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 - Brisbane or Santa Rosa Sonoma County - Bundaberg.

  • 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, March is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $1,032). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $1,627). 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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