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$895+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
STS — SYD
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$1,134
(oojo)

One-way from

$895
(Qatar Airways)

Popular in

December

Cheapest in

February

Average price

$1,245
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
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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. 11% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 8, 2026.

This oojo deal was found by Cheapflights users on 1/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:00 amSTS - BNE
2 stops30h 00mAir New Zealand
Sat 2/286:05 pmBNE - STS
2 stops47h 52mAir New Zealand
Deal found 1/6$1,134
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:00 amSTS - SYD
1 stop29h 25mMultiple Airlines
Mon 3/235:45 pmSYD - STS
1 stop19h 28mMultiple Airlines
Deal found 1/7$1,190
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:00 amSTS - SYD
1 stop29h 25mMultiple Airlines
Sat 2/285:45 pmSYD - STS
1 stop35h 26mMultiple Airlines
Deal found 1/7$1,216
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 amSTS - SYD
2 stops41h 45mMultiple Airlines
Sun 4/128:45 pmSYD - STS
2 stops31h 45mMultiple Airlines
Deal found 1/8$1,232
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 amSTS - SYD
2 stops41h 45mMultiple Airlines
Sat 4/118:45 pmSYD - STS
2 stops55h 45mMultiple Airlines
Deal found 1/8$1,261
This American Airlines deal was found by Cheapflights users on 1/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:00 amSTS - SYD
1 stop31h 00mAmerican Airlines
Mon 3/2311:20 amSYD - STS
2 stops22h 33mAmerican Airlines
Deal found 1/7$1,290
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 3/317:30 amSTS - SYD
2 stops41h 20mMultiple Airlines
Sun 4/128:45 pmSYD - STS
2 stops31h 45mMultiple Airlines
Deal found 1/8$1,299
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 amSTS - SYD
2 stops41h 45mMultiple Airlines
Fri 4/108:45 pmSYD - STS
2 stops30h 18mMultiple Airlines
Deal found 1/8$1,322
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:00 amSTS - BNE
1 stop28h 00mMultiple Airlines
Sat 2/287:40 pmBNE - STS
2 stops32h 52mMultiple Airlines
Deal found 1/6$1,327
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 amSTS - SYD
2 stops41h 45mMultiple Airlines
Thu 4/98:45 pmSYD - STS
2 stops19h 30mMultiple Airlines
Deal found 1/8$1,388
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 3/317:30 amSTS - SYD
2 stops41h 20mMultiple Airlines
Fri 4/108:45 pmSYD - STS
2 stops30h 18mMultiple Airlines
Deal found 1/8$1,389
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 3/317:53 pmSTS - SYD
1 stop18h 12mAlaska Airlines
Sun 4/129:10 amSYD - STS
1 stop31h 49mAlaska Airlines
Deal found 1/8$1,446

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 8, 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 RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

Sat 2/21

7:00 am-7:00 am

2 stops30h 00m

Brisbane

Sat 2/28

6:05 pm-11:57 pm

2 stops47h 52m

$1,134

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sat 2/21

7:00 am-7:25 am

1 stop29h 25m

Sydney Kingsford Smith

Sat 2/28

5:45 pm-10:11 am

1 stop35h 26m

$1,216

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 4/1

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Sun 4/12

8:45 pm-11:30 am

2 stops31h 45m

$1,232

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-11:30 am

2 stops55h 45m

$1,261

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 3/31

7:30 am-6:50 pm

2 stops41h 20m

Sydney Kingsford Smith

Sun 4/12

8:45 pm-11:30 am

2 stops31h 45m

$1,299

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 4/10

8:45 pm-10:03 am

2 stops30h 18m

$1,322

Santa RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

Sat 2/21

7:00 am-5:00 am

1 stop28h 00m

Brisbane

Sat 2/28

7:40 pm-10:11 am

1 stop32h 31m

$1,334

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 4/1

7:05 am-6:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Thu 4/9

8:45 pm-11:15 pm

2 stops19h 30m

$1,388

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 3/31

7:30 am-6:50 pm

2 stops41h 20m

Sydney Kingsford Smith

Fri 4/10

8:45 pm-10:03 am

2 stops30h 18m

$1,389

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 4/1

7:53 pm-8:05 am

1 stop18h 12m

Sydney Kingsford Smith

Sun 4/12

9:10 am-11:59 pm

1 stop31h 49m

$1,446

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 48 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 $1,537, Air New Zealand can have you in Australia from Santa Rosa in 19h 53m. Santa Rosa and Australia are separated by a distance of 7867 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 - Brisbane or Santa Rosa Sonoma County - Sydney Kingsford Smith.

  • 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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