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$864+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
dic. 26 — ene. 21
vie. 12/26
vie. 1/2
1 adult, Economy
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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 noviembre 26, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 11/238:15 pmSTS - SYD
2 stops28h 30mAlaska Airlines
vie. 12/59:40 pmSYD - STS
2 stops31h 39mAlaska Airlines
Deal found 11/23$1,163
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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.
mié. 11/268:15 pmSTS - SYD
2 stops52h 30mAlaska Airlines
jue. 12/49:40 pmSYD - STS
2 stops34h 49mAlaska Airlines
Deal found 11/23$1,185
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 11/241:18 pmSTS - SYD
2 stops59h 27mAlaska Airlines
jue. 12/49:40 pmSYD - STS
2 stops20h 14mAlaska Airlines
Deal found 11/23$1,187
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 12/96:54 pmSTS - SYD
2 stops29h 51mAlaska Airlines
vie. 1/99:40 pmSYD - STS
2 stops31h 55mAlaska Airlines
Deal found 11/23$1,438
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 11/238:15 pmSTS - SYD
2 stops28h 30mAlaska Airlines
sáb. 11/299:40 pmSYD - STS
2 stops44h 53mAlaska Airlines
Deal found 11/23$1,485
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 11/241:18 pmSTS - SYD
2 stops59h 27mAlaska Airlines
sáb. 11/299:40 pmSYD - STS
2 stops44h 53mAlaska Airlines
Deal found 11/23$1,509
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 12/96:54 pmSTS - SYD
2 stops29h 51mAlaska Airlines
jue. 1/89:40 pmSYD - STS
2 stops30h 18mAlaska Airlines
Deal found 11/23$1,607
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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.
mié. 12/1010:59 amSTS - SYD
2 stops37h 46mAlaska Airlines
vie. 1/99:40 pmSYD - STS
2 stops30h 18mAlaska Airlines
Deal found 11/23$1,616
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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. 12/96:54 pmSTS - SYD
2 stops29h 51mAlaska Airlines
mié. 1/79:40 pmSYD - STS
2 stops30h 18mAlaska Airlines
Deal found 11/23$1,670
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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.
mié. 12/1010:59 amSTS - SYD
2 stops37h 46mAlaska Airlines
jue. 1/89:40 pmSYD - STS
2 stops30h 18mAlaska Airlines
Deal found 11/23$1,785
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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.
mié. 12/1010:59 amSTS - SYD
2 stops37h 46mAlaska Airlines
mié. 1/79:40 pmSYD - STS
2 stops31h 16mAlaska Airlines
Deal found 11/23$1,848
This Alaska Airlines deal was found by Cheapflights users on 11/25. 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. 12/236:37 pmSTS - SYD
1 stop19h 23mAlaska Airlines
mar. 12/3011:20 amSYD - STS
1 stop18h 11mAlaska Airlines
Deal found 11/25$1,934

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 noviembre 26, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,142
(American Airlines)

One-way from

$864
(Qantas Airways)

Popular in

December

Cheapest in

February

Average price

$1,229
Provider with most accurate pricing for San Francisco-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Sydney Kingsford Smith flights.
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From Santa Rosa Sonoma County to Australia
Search Deals
One-way flight from Santa Rosa Sonoma County to Australia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 noviembre 26, 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

mar. 2/17

1:00 pm-5:00 am

2 stops22h 00m

Brisbane

sáb. 2/21

7:40 pm-12:30 pm

2 stops34h 50m

$1,142

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

vie. 2/27

7:48 pm-7:45 pm

2 stops28h 57m

Sydney Kingsford Smith

mar. 3/3

9:40 pm-10:32 am

2 stops31h 52m

$1,163

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

vie. 2/27

7:00 am-9:00 am

1 stop31h 00m

Sydney Kingsford Smith

mar. 3/3

11:20 am-10:11 am

1 stop17h 51m

$1,491

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

lun. 2/9

11:15 am-5:50 pm

2 stops35h 35m

Melbourne

lun. 2/23

6:50 pm-9:52 pm

3 stops46h 02m

$1,769

Santa RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

mié. 12/10

12:57 pm-5:00 am

2 stops46h 03m

Brisbane

jue. 1/1

9:40 am-12:18 am

2 stops32h 38m

$2,122

Santa RosaPerth

STS - PER

STSPER

Santa Rosa Sonoma County

mar. 4/28

7:00 am-11:55 am

2 stops37h 55m

Perth

sáb. 5/2

3:40 pm-9:51 pm

2 stops45h 11m

$2,124

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

jue. 12/25

6:37 pm-9:00 am

1 stop19h 23m

Sydney Kingsford Smith

mar. 12/30

11:20 am-10:31 am

1 stop18h 11m

$2,134

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mié. 12/17

10:59 am-7:45 pm

2 stops61h 46m

Sydney Kingsford Smith

mar. 1/13

9:40 pm-10:35 am

2 stops31h 55m

$2,208

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

vie. 12/19

7:00 am-7:45 pm

2 stops41h 45m

Sydney Kingsford Smith

mar. 1/13

9:40 pm-10:35 am

2 stops31h 55m

$2,217

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

mar. 12/16

10:59 am-7:45 pm

2 stops37h 46m

Sydney Kingsford Smith

mié. 1/14

9:40 pm-9:56 am

2 stops31h 16m

$2,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 44 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 $224). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $836). 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 $1,142, American Airlines can have you in Australia from Santa Rosa in 22h. Santa Rosa and Australia are separated by a distance of 7070 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 Qantas Airways. According to our data, you can fly for as low as $885. Users have also found prices from $918 and $1,117 on Alaska Airlines and American Airlines, 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 - 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, January is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $224). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $836). 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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