Which airlines fly to Sydney?

United Airlines, Qantas Airways and Fiji Airways are the top three most popular airlines that fly to Sydney from Santa Rosa according to our data. United Airlines 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.

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

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.

$915 Cheap Flights from Santa Rosa to Sydney in 2026

Find the cheapest flights from Santa Rosa to Sydney

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One-way

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16:49 - 07:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

21h 01m2 stops Salt Lake City Los Angeles

10:40 - 16:05SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 25m2 stops Los Angeles Salt Lake City

$1,995Delta

Mon, 19 Oct - Wed, 4 Nov

16:49 - 07:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

45h 01m2 stops Salt Lake City Los Angeles

10:40 - 16:05SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 25m2 stops Los Angeles Salt Lake City

$2,016Delta

Sun, 18 Oct - Wed, 4 Nov

16:49 - 07:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

21h 01m2 stops Salt Lake City Los Angeles

10:40 - 16:05SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 25m2 stops Los Angeles Salt Lake City

$2,065Delta

Thu, 22 Oct - Mon, 2 Nov

16:49 - 07:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

45h 01m2 stops Salt Lake City Los Angeles

10:40 - 16:05SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 25m2 stops Los Angeles Salt Lake City

$2,086Delta

Sun, 18 Oct - Thu, 5 Nov

16:49 - 07:50STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

21h 01m2 stops Salt Lake City Los Angeles

10:40 - 16:05SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

24h 25m2 stops Los Angeles Salt Lake City

$2,135Delta

Thu, 22 Oct - Thu, 5 Nov

09:10 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

39h 35m2 stops Phoenix Sky Harbor Intl Honolulu

21:40 - 19:28SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

40h 48m2 stops Honolulu Portland

$2,155Multiple Airlines

Sun, 8 Nov - Thu, 12 Nov

09:10 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

39h 35m2 stops Phoenix Sky Harbor Intl Honolulu

21:40 - 09:12SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

30h 32m2 stops Honolulu Portland

$2,164Multiple Airlines

Sun, 8 Nov - Thu, 12 Nov

09:10 - 19:45STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

39h 35m2 stops Phoenix Sky Harbor Intl Honolulu

21:40 - 19:28SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

40h 48m2 stops Honolulu Portland

$2,178Multiple Airlines

Sun, 8 Nov - Thu, 12 Nov

11:57 - 08:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

26h 08m1 stop Los Angeles

11:10 - 15:56SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

23h 46m2 stops Los Angeles Phoenix Sky Harbor Intl

$2,188American Airlines

Mon, 19 Oct - Wed, 4 Nov

11:57 - 08:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

26h 08m1 stop Los Angeles

11:10 - 21:34SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

29h 24m1 stop Los Angeles

$2,192American Airlines

Mon, 19 Oct - Tue, 3 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:01 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

26h 04m1 stop Los Angeles

09:10 - 11:21SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 11m1 stop Los Angeles

$2,776Alaska Airlines

Mon, 31 Aug - Tue, 8 Sep

14:52 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

23h 13m2 stops Portland Los Angeles

09:10 - 11:21SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 11m1 stop Los Angeles

$2,781Alaska Airlines

Mon, 31 Aug - Tue, 8 Sep

14:52 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

23h 13m2 stops Portland Los Angeles

09:10 - 11:21SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 11m1 stop Los Angeles

$2,782Alaska Airlines

Mon, 31 Aug - Tue, 8 Sep

07:10 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles

09:10 - 11:21SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 11m1 stop Los Angeles

$2,785Alaska Airlines

Sun, 30 Aug - Tue, 8 Sep

07:10 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles

09:10 - 11:21SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

19h 11m1 stop Los Angeles

$2,787Alaska Airlines

Sun, 30 Aug - Tue, 8 Sep

07:10 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles

09:10 - 21:59SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

29h 49m2 stops Los Angeles Seattle/Tacoma Intl

$2,792Alaska Airlines

Sun, 30 Aug - Tue, 8 Sep

16:18 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

21h 47m2 stops Phoenix Sky Harbor Intl Los Angeles

09:10 - 15:37SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

23h 27m2 stops Los Angeles Phoenix Sky Harbor Intl

$2,801American Airlines

Sun, 30 Aug - Mon, 7 Sep

12:01 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

26h 04m1 stop Los Angeles

09:10 - 15:37SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

23h 27m2 stops Los Angeles Phoenix Sky Harbor Intl

$2,802American Airlines

Mon, 31 Aug - Mon, 7 Sep

07:10 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles

09:10 - 15:37SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

23h 27m2 stops Los Angeles Phoenix Sky Harbor Intl

$2,810American Airlines

Sun, 30 Aug - Mon, 7 Sep

07:10 - 07:05STS Santa Rosa Sonoma County-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles

09:10 - 15:32SYD Sydney Kingsford Smith-STS Santa Rosa Sonoma County

23h 22m2 stops Los Angeles Phoenix Sky Harbor Intl

$2,812American Airlines

Sun, 30 Aug - Tue, 8 Sep

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Air Tahiti Nui flights from Santa Rosa to Sydney

Our best Air Tahiti Nui deals on Santa Rosa to Sydney flight tickets

Air Tahiti Nui

8 Nov

STS18:41Santa Rosa Sonoma County

27h 59m

3 stops

SYD17:40Sydney Kingsford Smith

12 Nov

SYD07:05Sydney Kingsford Smith

25h 24m

3 stops

STS13:29Santa Rosa Sonoma County

$2,893

Air Tahiti Nui

8 Nov

STS07:20Santa Rosa Sonoma County

39h 20m

3 stops

SYD17:40Sydney Kingsford Smith

12 Nov

SYD07:05Sydney Kingsford Smith

25h 24m

3 stops

STS13:29Santa Rosa Sonoma County

$2,912

Air Tahiti Nui

8 Nov

STS07:20Santa Rosa Sonoma County

39h 20m

3 stops

SYD17:40Sydney Kingsford Smith

12 Nov

SYD07:05Sydney Kingsford Smith

25h 24m

3 stops

STS13:29Santa Rosa Sonoma County

$2,913

Alaska Airlines flights from Santa Rosa to Sydney

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

Alaska Airlines

23 Dec

STS12:06Santa Rosa Sonoma County

25h 54m

1 stop

SYD09:00Sydney Kingsford Smith

8 Jan

SYD11:20Sydney Kingsford Smith

20h 01m

1 stop

STS12:21Santa Rosa Sonoma County

$2,774

Alaska Airlines

31 Aug

STS12:01Santa Rosa Sonoma County

26h 04m

1 stop

SYD07:05Sydney Kingsford Smith

8 Sept

SYD09:10Sydney Kingsford Smith

19h 11m

1 stop

STS11:21Santa Rosa Sonoma County

$2,776

Alaska Airlines

23 Dec

STS12:06Santa Rosa Sonoma County

25h 54m

1 stop

SYD09:00Sydney Kingsford Smith

8 Jan

SYD11:20Sydney Kingsford Smith

28h 13m

2 stops

STS20:33Santa Rosa Sonoma County

$2,780

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

Mon 19/10

16:49-07:50

2 stops21h 01m

Sydney Kingsford Smith

Wed 4/11

10:40-16:05

2 stops24h 25m

$1,995

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 18/10

16:49-07:50

2 stops45h 01m

Sydney Kingsford Smith

Wed 4/11

10:40-16:05

2 stops24h 25m

$2,016

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Thu 22/10

16:49-07:50

2 stops21h 01m

Sydney Kingsford Smith

Mon 2/11

10:40-16:05

2 stops24h 25m

$2,065

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 18/10

16:49-07:50

2 stops45h 01m

Sydney Kingsford Smith

Thu 5/11

10:40-16:05

2 stops24h 25m

$2,086

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Thu 22/10

16:49-07:50

2 stops21h 01m

Sydney Kingsford Smith

Thu 5/11

10:40-16:05

2 stops24h 25m

$2,135

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 8/11

09:10-19:45

2 stops39h 35m

Sydney Kingsford Smith

Thu 12/11

21:40-19:28

2 stops40h 48m

$2,155

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 8/11

09:10-19:45

2 stops39h 35m

Sydney Kingsford Smith

Thu 12/11

21:40-09:12

2 stops30h 32m

$2,164

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Sun 8/11

09:10-19:45

2 stops39h 35m

Sydney Kingsford Smith

Thu 12/11

21:40-19:28

2 stops40h 48m

$2,178

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Mon 19/10

11:57-08:05

1 stop26h 08m

Sydney Kingsford Smith

Wed 4/11

11:10-15:56

2 stops23h 46m

$2,188

Santa RosaSydney

STS Santa Rosa Sonoma County - SYD Sydney Kingsford Smith

STSSYD

Santa Rosa Sonoma County

Mon 19/10

11:57-08:05

1 stop26h 08m

Sydney Kingsford Smith

Tue 3/11

11:10-21:34

1 stop29h 24m

$2,192

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 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 $1,661. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,571.

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	$915
Fastest flight time	25h 07m
Direct flights	None

The best one-way flight to Sydney from Santa Rosa in the past 72 hours is $915. The best return flight deal from Santa Rosa to Sydney found on momondo in the last 72 hours is $1,995.

The fastest flight from Santa Rosa to Sydney takes 25h 07m

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 25h 07m, 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.