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$1,081+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
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 January 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Fri 3/67:00 am
STS
-
SYD
1 stop29h 25m
Multiple Airlines
Fri 3/132:00 pm
SYD
-
STS
2 stops27h 57m
Multiple Airlines
Deal found 1/20$1,113
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/17:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Tue 4/148:45 pm
SYD
-
STS
2 stops39h 28m
Multiple Airlines
Deal found 1/20$1,221
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/17:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Thu 4/168:45 pm
SYD
-
STS
2 stops39h 28m
Multiple Airlines
Deal found 1/20$1,240
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/317:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Tue 4/148:45 pm
SYD
-
STS
2 stops39h 28m
Multiple Airlines
Deal found 1/20$1,244
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/317:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Thu 4/168:45 pm
SYD
-
STS
2 stops38h 37m
Multiple Airlines
Deal found 1/20$1,255
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 6/1110:57 am
STS
-
SYD
2 stops38h 53m
Multiple Airlines
Tue 8/48:45 pm
SYD
-
STS
2 stops30h 32m
Multiple Airlines
Deal found 1/20$1,259
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/317:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Sun 4/128:45 pm
SYD
-
STS
2 stops39h 28m
Multiple Airlines
Deal found 1/20$1,263
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 3/297:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Tue 4/148:45 pm
SYD
-
STS
2 stops39h 28m
Multiple Airlines
Deal found 1/20$1,268
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/17:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Fri 4/178:45 pm
SYD
-
STS
2 stops30h 18m
Multiple Airlines
Deal found 1/20$1,281
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 6/78:20 am
STS
-
SYD
2 stops41h 30m
Multiple Airlines
Tue 8/48:45 pm
SYD
-
STS
2 stops30h 32m
Multiple Airlines
Deal found 1/20$1,282
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 3/297:05 am
STS
-
SYD
2 stops41h 45m
Multiple Airlines
Sun 4/128:45 pm
SYD
-
STS
2 stops31h 45m
Multiple Airlines
Deal found 1/20$1,287
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 6/78:20 am
STS
-
SYD
2 stops41h 30m
Multiple Airlines
Fri 8/78:45 pm
SYD
-
STS
2 stops40h 32m
Multiple Airlines
Deal found 1/20$1,294

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 January 22, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$1,113
(Kiwi.com)

One-way from

$1,081
(Qantas Airways)

Popular in

December

Cheapest in

February

Average price

$1,247
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
One-way flight from Santa Rosa Sonoma County to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 22, 2026.
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

Wed 4/1

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Tue 4/14

8:45 pm-7:13 pm

2 stops39h 28m

$1,221

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 3/29

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Tue 4/14

8:45 pm-7:13 pm

2 stops39h 28m

$1,268

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 4/1

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Fri 4/17

8:45 pm-10:03 am

2 stops30h 18m

$1,281

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 3/29

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Thu 4/16

8:45 pm-7:13 pm

2 stops39h 28m

$1,287

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 6/11

5:52 pm-6:50 pm

2 stops31h 58m

Sydney Kingsford Smith

Fri 8/7

8:45 pm-10:17 am

2 stops30h 32m

$1,287

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 6/9

5:21 pm-6:50 pm

2 stops32h 29m

Sydney Kingsford Smith

Sun 8/2

8:45 pm-8:17 pm

2 stops40h 32m

$1,294

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 6/7

8:20 am-6:50 pm

2 stops41h 30m

Sydney Kingsford Smith

Sat 8/8

8:45 pm-10:17 am

2 stops30h 32m

$1,310

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 6/11

5:52 pm-6:50 pm

2 stops31h 58m

Sydney Kingsford Smith

Thu 8/6

8:45 pm-5:12 pm

2 stops37h 27m

$1,336

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 4/1

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Sat 4/11

8:45 pm-11:59 pm

2 stops44h 14m

$1,338

Santa RosaPerth

STS - PER

STSPER

Santa Rosa Sonoma County

Sun 3/8

7:48 pm-10:55 pm

2 stops60h 07m

Perth

Sun 3/15

8:30 am-10:11 am

2 stops40h 41m

$1,396

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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 $222). 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 $2,824, Qantas Airways can have you in Australia from Santa Rosa in 24h 05m. Santa Rosa and Australia are separated by a distance of 6986 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, January is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $222). 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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