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$826+ 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
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
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 June 16, 2025.

Round-trip from

$1,089
(Alaska Airlines)

One-way from

$826
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$1,076
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 ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/13. 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.
Sat 8/27:23 pmSTS - SYD
1 stop18h 42mAlaska Airlines
Tue 8/129:10 amSYD - STS
1 stop18h 56mAlaska Airlines
Deal found 6/13$1,089
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/317:00 amSTS - SYD
1 stop31h 30mMultiple Airlines
Thu 8/75:45 pmSYD - STS
1 stop22h 59mMultiple Airlines
Deal found 6/16$1,145
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:00 amSTS - SYD
1 stop31h 05mAmerican Airlines
Wed 10/1510:10 amSYD - STS
2 stops23h 43mAmerican Airlines
Deal found 6/16$1,245
This Qantas Airways deal was found by Cheapflights users on 6/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:07 pmSTS - MEL
1 stop22h 38mQantas Airways
Mon 9/299:45 amMEL - STS
1 stop26h 27mQantas Airways
Deal found 6/16$1,530
This Qantas Airways deal was found by Cheapflights users on 6/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:07 pmSTS - MEL
1 stop22h 38mMultiple Airlines
Sun 9/282:00 pmMEL - STS
2 stops22h 12mMultiple Airlines
Deal found 6/16$1,559
This Jetabroad deal was found by Cheapflights users on 6/16. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/314:34 pmSTS - SYD
3 stops34h 11mHawaiian Airlines
Thu 8/79:40 pmSYD - STS
2 stops28h 25mHawaiian Airlines
Deal found 6/16$1,668
This Qantas Airways deal was found by Cheapflights users on 6/15. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:30 pmSTS - BNE
1 stop21h 30mMultiple Airlines
Mon 12/17:25 pmBNE - STS
1 stop21h 10mMultiple Airlines
Deal found 6/15$1,709
This Qantas Airways deal was found by Cheapflights users on 6/15. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:30 pmSTS - BNE
2 stops27h 05mQantas Airways
Mon 12/17:00 amBNE - STS
2 stops23h 56mQantas Airways
Deal found 6/15$1,737
This Qantas Airways deal was found by Cheapflights users on 6/13. 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.
Tue 8/53:05 pmSTS - SYD
1 stop23h 25mQantas Airways
Tue 8/125:45 pmSYD - STS
1 stop17h 22mQantas Airways
Deal found 6/13$1,845
This Qatar Airways deal was found by Cheapflights users on 6/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amSTS - MEL
2 stops47h 10mQatar Airways
Tue 9/3010:45 pmMEL - STS
2 stops38h 23mQatar Airways
Deal found 6/16$2,727
This Qatar Airways deal was found by Cheapflights users on 6/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:12 amSTS - BNE
2 stops46h 33mQatar Airways
Mon 10/275:05 pmBNE - STS
3 stops41h 40mQatar Airways
Deal found 6/16$3,936

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 June 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

Sat 8/2

7:23 pm-7:05 am

1 stop18h 42m

Sydney Kingsford Smith

Tue 8/12

9:10 am-11:06 am

1 stop18h 56m

$1,089

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 7/31

7:00 am-7:30 am

1 stop31h 30m

Sydney Kingsford Smith

Thu 8/7

5:45 pm-11:44 pm

1 stop22h 59m

$1,145

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Mon 10/6

7:00 am-8:05 am

1 stop31h 05m

Sydney Kingsford Smith

Wed 10/15

10:10 am-3:53 pm

2 stops23h 43m

$1,245

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Tue 9/16

3:07 pm-6:45 am

1 stop22h 38m

Melbourne

Mon 9/29

9:45 am-7:12 pm

1 stop26h 27m

$1,530

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Fri 9/19

3:07 pm-6:45 am

1 stop22h 38m

Melbourne

Sun 9/28

2:00 pm-7:12 pm

2 stops22h 12m

$1,559

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 7/31

4:34 pm-7:45 pm

3 stops34h 11m

Sydney Kingsford Smith

Thu 8/7

9:40 pm-9:05 am

2 stops28h 25m

$1,668

Santa RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

Mon 11/24

1:30 pm-5:00 am

1 stop21h 30m

Brisbane

Mon 12/1

7:25 pm-10:35 pm

1 stop21h 10m

$1,709

Santa RosaBrisbane

STS - BNE

STSBNE

Santa Rosa Sonoma County

Mon 11/24

1:30 pm-10:35 am

2 stops27h 05m

Brisbane

Mon 12/1

7:00 am-12:56 pm

2 stops23h 56m

$1,737

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 8/5

3:05 pm-7:30 am

1 stop23h 25m

Sydney Kingsford Smith

Tue 8/12

5:45 pm-6:07 pm

1 stop17h 22m

$1,845

Santa RosaMelbourne

STS - MEL

STSMEL

Santa Rosa Sonoma County

Tue 9/16

7:00 am-11:10 pm

2 stops47h 10m

Melbourne

Tue 9/30

10:45 pm-8:08 pm

2 stops38h 23m

$2,727

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 23 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 $1,040). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $1,635). 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.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated June 16, 2025.
Read reviews from past customers who have flown Japan Airlines, Singapore Airlines and Alaska Airlines from Santa Rosa to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,494 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Japan Airlines
8.3
Very good
1,494 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Singapore Airlines
8.1
Very good
1,308 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Alaska Airlines
8.0
Very good
10,000 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Hawaiian Airlines
7.8
Good
2,501 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Qantas Airways
7.5
Good
860 reviews
Japan Airlines
8.3
Very good
1,494 reviews

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.

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.

  • 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 $826. Users have also found prices from $1,056 and $1,186 on American Airlines and Qantas 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 - Perth 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, March is the cheapest month in which you can book a flight from Santa Rosa to Australia (average of $1,040). Flying from Santa Rosa to Australia in December is currently the most expensive (average of $1,635). 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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