What is the cheapest airline that flies from Santa Rosa Sonoma County to Sydney Kingsford Smith?

Alaska Airlines is the most popular carrier operating from Santa Rosa Sonoma County to Sydney Kingsford Smith

Which airlines fly to Sydney?

Qantas Airways, Fiji Airways and United Airlines are the top three most popular airlines that fly to Sydney from Santa Rosa according to our data. Qantas Airways is the first choice among our users, with 30% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 4 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport?

Prices for flights from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport are updated daily.

How old do you have to be to fly from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$932 Cheap Flights from Santa Rosa to Sydney in 2026/27

Find the cheapest flights from Santa Rosa to Sydney

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

17:22 - 18:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

32h 28m2 stops Los Angeles Honolulu

20:45 - 11:07SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

31h 22m2 stops Honolulu Los Angeles

$1,688Multiple Airlines

Wed, 7 Apr - Tue, 20 Apr

19:23 - 18:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

30h 27m2 stops Los Angeles Honolulu

20:45 - 16:05SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

36h 20m2 stops Honolulu Portland

$1,773Multiple Airlines

Wed, 7 Apr - Fri, 23 Apr

17:22 - 06:30STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

20h 08m1 stop Los Angeles

13:00 - 22:41SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

26h 41m3 stops Brisbane Melbourne Los Angeles

$2,009Multiple Airlines

Wed, 7 Apr - Wed, 21 Apr

12:55 - 06:25STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

22h 30m1 stop Los Angeles

11:15 - 14:22SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

22h 07m1 stop Los Angeles

$2,060Multiple Airlines

Fri, 12 Feb - Sun, 28 Feb

17:22 - 06:30STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

20h 08m1 stop Los Angeles

13:00 - 22:41SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

26h 41m3 stops Brisbane Melbourne Los Angeles

$2,113Multiple Airlines

Wed, 14 Apr - Wed, 21 Apr

12:55 - 06:25STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

22h 30m1 stop Los Angeles

16:00 - 21:54SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 54m3 stops Canberra Melbourne Los Angeles

$2,168Multiple Airlines

Fri, 12 Feb - Sun, 28 Feb

17:22 - 06:30STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

20h 08m1 stop Los Angeles

18:15 - 22:41SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

21h 26m2 stops Melbourne Los Angeles

$2,207Multiple Airlines

Wed, 7 Apr - Wed, 21 Apr

12:55 - 06:25STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

22h 30m1 stop Los Angeles

19:40 - 21:54SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

21h 14m2 stops Melbourne Los Angeles

$2,214Multiple Airlines

Fri, 12 Feb - Sun, 28 Feb

09:30 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

39h 15m2 stops Los Angeles Honolulu

21:40 - 19:10SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

40h 30m2 stops Honolulu Seattle/Tacoma Intl

$2,224Multiple Airlines

Wed, 24 Feb - Sun, 28 Feb

17:22 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

20h 43m1 stop Los Angeles

09:10 - 16:42SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 32m1 stop Los Angeles

$2,324Alaska Airlines

Sun, 11 Apr - Wed, 21 Apr

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Alaska Airlines flights from Santa Rosa to Sydney

Our best Alaska Airlines deals on Santa Rosa to Sydney flight tickets

Alaska Airlines

11 Apr

STS17:22Santa Rosa Sonoma County

20h 43m

1 stop

SYD07:05Sydney Kingsford Smith

21 Apr

SYD09:10Sydney Kingsford Smith

24h 32m

1 stop

STS16:42Santa Rosa Sonoma County

$2,324

Alaska Airlines

12 Apr

STS20:00Santa Rosa Sonoma County

42h 05m

2 stops

SYD07:05Sydney Kingsford Smith

21 Apr

SYD09:10Sydney Kingsford Smith

23h 55m

2 stops

STS16:05Santa Rosa Sonoma County

$2,329

Alaska Airlines

8 Nov

STS11:30Santa Rosa Sonoma County

26h 30m

1 stop

SYD09:00Sydney Kingsford Smith

12 Nov

SYD11:10Sydney Kingsford Smith

18h 05m

1 stop

STS10:15Santa Rosa Sonoma County

$5,048

American Airlines flights from Santa Rosa to Sydney

Our best American Airlines deals on Santa Rosa to Sydney flight tickets

American Airlines

7 Apr

STS09:00Santa Rosa Sonoma County

29h 05m

2 stops

SYD07:05Sydney Kingsford Smith

19 Apr

SYD10:20Sydney Kingsford Smith

29h 24m

2 stops

STS22:44Santa Rosa Sonoma County

$2,351

American Airlines

7 Apr

STS09:00Santa Rosa Sonoma County

28h 55m

2 stops

SYD06:55Sydney Kingsford Smith

20 Apr

SYD09:10Sydney Kingsford Smith

30h 31m

1 stop

STS22:41Santa Rosa Sonoma County

$2,361

American Airlines

7 Apr

STS07:00Santa Rosa Sonoma County

31h 05m

1 stop

SYD07:05Sydney Kingsford Smith

19 Apr

SYD09:10Sydney Kingsford Smith

30h 31m

1 stop

STS22:41Santa Rosa Sonoma County

$2,366

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 7/4

17:22-18:50

2 stops32h 28m

Sydney Kingsford Smith

Tue 20/4

20:45-11:07

2 stops31h 22m

$1,688

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 7/4

19:23-18:50

2 stops30h 27m

Sydney Kingsford Smith

Fri 23/4

20:45-16:05

2 stops36h 20m

$1,773

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 7/4

17:22-06:30

1 stop20h 08m

Sydney Kingsford Smith

Wed 21/4

13:00-22:41

3 stops26h 41m

$2,009

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Fri 12/2

12:55-06:25

1 stop22h 30m

Sydney Kingsford Smith

Sun 28/2

11:15-14:22

1 stop22h 07m

$2,060

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 14/4

17:22-06:30

1 stop20h 08m

Sydney Kingsford Smith

Wed 21/4

13:00-22:41

3 stops26h 41m

$2,113

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Fri 12/2

12:55-06:25

1 stop22h 30m

Sydney Kingsford Smith

Sun 28/2

16:00-21:54

3 stops24h 54m

$2,168

Fastest return journey

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 7/4

17:22-06:30

1 stop20h 08m

Sydney Kingsford Smith

Wed 21/4

18:15-22:41

2 stops21h 26m

$2,207

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Fri 12/2

12:55-06:25

1 stop22h 30m

Sydney Kingsford Smith

Sun 28/2

19:40-21:54

2 stops21h 14m

$2,214

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 24/2

09:30-19:45

2 stops39h 15m

Sydney Kingsford Smith

Sun 28/2

21:40-19:10

2 stops40h 30m

$2,224

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 11/4

17:22-07:05

1 stop20h 43m

Sydney Kingsford Smith

Wed 21/4

09:10-16:42

1 stop24h 32m

$2,324

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Santa Rosa to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Friday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,002. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,567.

When to book flights from Santa Rosa to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Santa Rosa to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Santa Rosa to Sydney (STS to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Santa Rosa to Sydney

Best price found	$932
Fastest flight time	20h 08m
Direct flights	None

The best one-way flight to Sydney from Santa Rosa in the past 72 hours is $932. The best return flight deal from Santa Rosa to Sydney found on momondo in the last 72 hours is $1,688.

The fastest flight from Santa Rosa to Sydney takes 20h 08m

There are no direct flights from Santa Rosa to Sydney. There are no popular flight routes from Santa Rosa to Sydney.

Search flight deals

Frequently asked questions about flying from Santa Rosa to Sydney

How far is Santa Rosa Sonoma County to Sydney Kingsford Smith by plane?
Santa Rosa Sonoma County and Sydney Kingsford Smith are 11954.2 km apart from one another. Flights usually cover this in 20h 08m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport?
Prices for flights from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport are updated daily.
How old do you have to be to fly from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Santa Rosa Sonoma County Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Santa Rosa to Sydney?

It is quick and easy to find Santa Rosa to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Santa Rosa to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Santa Rosa with this policy.

How can momondo help me find flights from Santa Rosa to Sydney?

Once you have performed a search for Santa Rosa to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Santa Rosa to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Santa Rosa to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.