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

Delta is the most popular carrier 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.

$1,107 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

Cheap return flights

Enter your travel dates to find the best prices.

18:35 - 10:20STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

20h 45m2 stops Los Angeles Brisbane

11:15 - 11:07SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

17h 52m1 stop Los Angeles

$1,526Multiple Airlines

Sat, 13 Mar - Sat, 20 Mar

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

22h 30m1 stop Los Angeles

11:05 - 14:22SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

22h 17m2 stops Brisbane Los Angeles

$1,540Multiple Airlines

Sat, 13 Feb - Sat, 6 Mar

12:39 - 07:20STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

23h 41m2 stops Salt Lake City Los Angeles

09:40 - 11:54SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

44h 14m2 stops Los Angeles Salt Lake City

$1,553Delta

Sat, 13 Mar - Fri, 19 Mar

12:39 - 07:20STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

47h 41m2 stops Salt Lake City Los Angeles

09:40 - 11:54SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

44h 14m2 stops Los Angeles Salt Lake City

$1,563Delta

Fri, 12 Mar - Fri, 19 Mar

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

22h 30m1 stop Los Angeles

11:05 - 14:22SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

22h 17m2 stops Brisbane Los Angeles

$1,621Multiple Airlines

Sat, 13 Feb - Sat, 6 Mar

18:35 - 11:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

21h 30m2 stops Los Angeles Brisbane

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

22h 07m1 stop Los Angeles

$1,669Multiple Airlines

Fri, 19 Feb - Sun, 28 Feb

07:20 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

41h 25m2 stops Seattle/Tacoma Intl Honolulu

21:40 - 23:08SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

44h 28m2 stops Honolulu Seattle/Tacoma Intl

$1,685Multiple Airlines

Sun, 8 Nov - Thu, 12 Nov

18:35 - 11:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

22h 10m2 stops Los Angeles Brisbane

11:05 - 16:42SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

23h 37m2 stops Brisbane Los Angeles

$1,810Multiple Airlines

Sat, 13 Mar - Sat, 20 Mar

15:10 - 10:35STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

24h 25m2 stops Los Angeles Auckland Intl

19:25 - 19:35SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

43h 10m2 stops Auckland Intl Los Angeles

$1,883Air New Zealand

Thu, 26 Nov - Thu, 3 Dec

17:22 - 08:40STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

22h 18m2 stops Los Angeles Brisbane

19:45 - 22:41SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 56m2 stops Honolulu Los Angeles

$1,994Multiple Airlines

Wed, 14 Apr - Wed, 28 Apr

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Delta flights from Santa Rosa to Sydney

Our best Delta deals on Santa Rosa to Sydney flight tickets

Delta

13 Mar

STS12:39Santa Rosa Sonoma County

23h 41m

2 stops

SYD07:20Sydney Kingsford Smith

19 Mar

SYD09:40Sydney Kingsford Smith

44h 14m

2 stops

STS11:54Santa Rosa Sonoma County

$1,553

Delta

12 Mar

STS12:39Santa Rosa Sonoma County

47h 41m

2 stops

SYD07:20Sydney Kingsford Smith

19 Mar

SYD09:40Sydney Kingsford Smith

44h 14m

2 stops

STS11:54Santa Rosa Sonoma County

$1,563

Delta

12 Mar

STS12:39Santa Rosa Sonoma County

47h 41m

2 stops

SYD07:20Sydney Kingsford Smith

20 Mar

SYD09:40Sydney Kingsford Smith

30h 33m

2 stops

STS22:13Santa Rosa Sonoma County

$2,266

American Airlines flights from Santa Rosa to Sydney

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

American Airlines

14 Mar

STS09:00Santa Rosa Sonoma County

30h 00m

2 stops

SYD09:00Sydney Kingsford Smith

21 Mar

SYD11:15Sydney Kingsford Smith

30h 38m

2 stops

STS23:53Santa Rosa Sonoma County

$2,431

American Airlines

13 Mar

STS16:12Santa Rosa Sonoma County

43h 13m

2 stops

SYD06:25Sydney Kingsford Smith

21 Mar

SYD11:20Sydney Kingsford Smith

30h 33m

2 stops

STS23:53Santa Rosa Sonoma County

$2,454

American Airlines

12 Mar

STS09:00Santa Rosa Sonoma County

26h 25m

2 stops

SYD06:25Sydney Kingsford Smith

21 Mar

SYD11:20Sydney Kingsford Smith

30h 33m

2 stops

STS23:53Santa Rosa Sonoma County

$2,502

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sat 13/3

18:35-10:20

2 stops20h 45m

Sydney Kingsford Smith

Sat 20/3

11:15-11:07

1 stop17h 52m

$1,526

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sat 13/2

12:55-06:25

1 stop22h 30m

Sydney Kingsford Smith

Sat 6/3

11:05-14:22

2 stops22h 17m

$1,540

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sat 13/3

12:39-07:20

2 stops23h 41m

Sydney Kingsford Smith

Fri 19/3

09:40-11:54

2 stops44h 14m

$1,553

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Fri 12/3

12:39-07:20

2 stops47h 41m

Sydney Kingsford Smith

Fri 19/3

09:40-11:54

2 stops44h 14m

$1,563

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sat 13/2

12:55-06:25

1 stop22h 30m

Sydney Kingsford Smith

Sat 6/3

11:05-14:22

2 stops22h 17m

$1,621

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Fri 19/2

18:35-11:05

2 stops21h 30m

Sydney Kingsford Smith

Sun 28/2

11:15-14:22

1 stop22h 07m

$1,669

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 8/11

07:20-19:45

2 stops41h 25m

Sydney Kingsford Smith

Thu 12/11

21:40-23:08

2 stops44h 28m

$1,685

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sat 13/3

18:35-11:45

2 stops22h 10m

Sydney Kingsford Smith

Sat 20/3

11:05-16:42

2 stops23h 37m

$1,810

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Thu 26/11

15:10-10:35

2 stops24h 25m

Sydney Kingsford Smith

Thu 3/12

19:25-19:35

2 stops43h 10m

$1,883

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Wed 14/4

17:22-08:40

2 stops22h 18m

Sydney Kingsford Smith

Wed 28/4

19:45-22:41

2 stops19h 56m

$1,994

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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 $1,924. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,578.

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	$1,107
Fastest flight time	20h 45m
Direct flights	None

The best one-way flight to Sydney from Santa Rosa in the past 72 hours is $1,107. The best return flight deal from Santa Rosa to Sydney found on momondo in the last 72 hours is $1,526.

The fastest flight from Santa Rosa to Sydney takes 20h 45m

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 45m, 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.