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

Alaska Airlines and Delta are the most popular carriers operating from Santa Rosa Sonoma County to Sydney Kingsford Smith

Which airlines fly to Sydney?

Qantas Airways, United Airlines and Fiji Airways 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 31% 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.

$841 Cheap Flights from Santa Rosa to Sydney in 2026/27

Find the cheapest flights from Santa Rosa to Sydney

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:48 - 09:00STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

27h 12m1 stop Los Angeles

21:25 - 12:19SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

33h 54m2 stops San Francisco Dallas/Fort Worth

$2,501American Airlines

Fri, 20 Nov - Fri, 27 Nov

10:48 - 09:00STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

27h 12m1 stop Los Angeles

14:05 - 12:19SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

41h 14m1 stop Dallas/Fort Worth

$2,511American Airlines

Fri, 20 Nov - Fri, 27 Nov

12:24 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

36h 21m2 stops Los Angeles Honolulu

21:40 - 18:57SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

40h 17m2 stops Honolulu Los Angeles

$2,578Multiple Airlines

Wed, 9 Dec - Tue, 29 Dec

12:24 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

36h 21m2 stops Los Angeles Honolulu

21:40 - 18:57SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

40h 17m2 stops Honolulu Los Angeles

$2,605Multiple Airlines

Tue, 8 Dec - Tue, 29 Dec

11:58 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

60h 47m2 stops Los Angeles Honolulu

21:40 - 10:11SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

31h 31m2 stops Honolulu San Diego

$2,636Multiple Airlines

Mon, 21 Dec - Mon, 28 Dec

11:58 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

60h 47m2 stops Los Angeles Honolulu

21:40 - 11:18SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

32h 38m2 stops Honolulu Los Angeles

$2,749Multiple Airlines

Mon, 21 Dec - Sun, 27 Dec

12:24 - 09:00STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

25h 36m1 stop Los Angeles

11:10 - 11:26SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 16m1 stop Los Angeles

$2,758Alaska Airlines

Tue, 8 Dec - Tue, 29 Dec

12:24 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

36h 21m2 stops Los Angeles Honolulu

21:40 - 11:26SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

32h 46m2 stops Honolulu Los Angeles

$2,759Multiple Airlines

Wed, 9 Dec - Thu, 31 Dec

08:50 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

39h 55m2 stops Los Angeles Honolulu

21:40 - 10:11SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

31h 31m2 stops Honolulu San Diego

$2,782Multiple Airlines

Tue, 15 Dec - Mon, 28 Dec

12:24 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

36h 21m2 stops Los Angeles Honolulu

21:40 - 10:11SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

31h 31m2 stops Honolulu San Diego

$2,787Multiple Airlines

Tue, 8 Dec - Thu, 31 Dec

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American Airlines flights from Santa Rosa to Sydney

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

American Airlines

20 Nov

STS10:48Santa Rosa Sonoma County

27h 12m

1 stop

SYD09:00Sydney Kingsford Smith

27 Nov

SYD21:25Sydney Kingsford Smith

33h 54m

2 stops

STS12:19Santa Rosa Sonoma County

$2,501

American Airlines

20 Nov

STS10:48Santa Rosa Sonoma County

27h 12m

1 stop

SYD09:00Sydney Kingsford Smith

27 Nov

SYD14:05Sydney Kingsford Smith

41h 14m

1 stop

STS12:19Santa Rosa Sonoma County

$2,511

American Airlines

9 Dec

STS08:50Santa Rosa Sonoma County

29h 10m

1 stop

SYD09:00Sydney Kingsford Smith

29 Dec

SYD11:10Sydney Kingsford Smith

31h 45m

2 stops

STS23:55Santa Rosa Sonoma County

$2,947

Delta flights from Santa Rosa to Sydney

Our best Delta deals on Santa Rosa to Sydney flight tickets

Delta

22 Nov

STS11:29Santa Rosa Sonoma County

26h 01m

2 stops

SYD08:30Sydney Kingsford Smith

27 Nov

SYD10:40Sydney Kingsford Smith

43h 03m

2 stops

STS10:43Santa Rosa Sonoma County

$3,034

Delta

21 Nov

STS16:47Santa Rosa Sonoma County

44h 43m

2 stops

SYD08:30Sydney Kingsford Smith

27 Nov

SYD10:40Sydney Kingsford Smith

43h 03m

2 stops

STS10:43Santa Rosa Sonoma County

$3,060

Delta

20 Nov

STS16:47Santa Rosa Sonoma County

44h 43m

2 stops

SYD08:30Sydney Kingsford Smith

26 Nov

SYD10:40Sydney Kingsford Smith

43h 03m

2 stops

STS10:43Santa Rosa Sonoma County

$3,118

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

Fri 20/11

10:48-09:00

1 stop27h 12m

Sydney Kingsford Smith

Fri 27/11

21:25-12:19

2 stops33h 54m

$2,501

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Fri 20/11

10:48-09:00

1 stop27h 12m

Sydney Kingsford Smith

Fri 27/11

14:05-12:19

1 stop41h 14m

$2,511

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 9/12

12:24-19:45

2 stops36h 21m

Sydney Kingsford Smith

Tue 29/12

21:40-18:57

2 stops40h 17m

$2,578

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Tue 8/12

12:24-19:45

2 stops36h 21m

Sydney Kingsford Smith

Tue 29/12

21:40-18:57

2 stops40h 17m

$2,605

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Mon 21/12

11:58-19:45

2 stops60h 47m

Sydney Kingsford Smith

Mon 28/12

21:40-10:11

2 stops31h 31m

$2,636

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Mon 21/12

11:58-19:45

2 stops60h 47m

Sydney Kingsford Smith

Sun 27/12

21:40-11:18

2 stops32h 38m

$2,749

Fastest return journey

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Tue 8/12

12:24-09:00

1 stop25h 36m

Sydney Kingsford Smith

Tue 29/12

11:10-11:26

1 stop19h 16m

$2,758

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 9/12

12:24-19:45

2 stops36h 21m

Sydney Kingsford Smith

Thu 31/12

21:40-11:26

2 stops32h 46m

$2,759

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Tue 15/12

08:50-19:45

2 stops39h 55m

Sydney Kingsford Smith

Mon 28/12

21:40-10:11

2 stops31h 31m

$2,782

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Tue 8/12

12:24-19:45

2 stops36h 21m

Sydney Kingsford Smith

Thu 31/12

21:40-10:11

2 stops31h 31m

$2,787

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 Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,922. The most expensive day to fly to Sydney is Sunday, with ticket prices averaging around $2,777.

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	$841
Fastest flight time	22h 49m
Direct flights	None

The best one-way flight to Sydney from Santa Rosa in the past 72 hours is $841. The best return flight deal from Santa Rosa to Sydney found on momondo in the last 72 hours is $2,501.

The fastest flight from Santa Rosa to Sydney takes 22h 49m

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 22h 49m, 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.