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?

United Airlines, Fiji Airways and Qantas 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 41% 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.

$1,268 Cheap Flights from Santa Rosa to Sydney in 2026

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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.

19:10 - 11:50

STS

SYD

23h 40m

2 stops

13:15 - 23:59

SYD

STS

27h 44m

2 stops

$1,268Multiple Airlines

Tue, 5 May - Tue, 12 May

19:10 - 11:50

STS

SYD

23h 40m

2 stops

13:15 - 23:59

SYD

STS

27h 44m

2 stops

$1,280Multiple Airlines

Tue, 5 May - Tue, 12 May

07:00 - 07:05

STS

SYD

31h 05m

1 stop

09:10 - 23:59

SYD

STS

31h 49m

1 stop

$1,674Multiple Airlines

Tue, 5 May - Tue, 12 May

19:10 - 11:50

STS

SYD

23h 40m

2 stops

17:50 - 23:59

SYD

STS

23h 09m

1 stop

$1,752Multiple Airlines

Tue, 5 May - Tue, 12 May

11:47 - 07:05

STS

SYD

26h 18m

1 stop

09:10 - 15:55

SYD

STS

23h 45m

1 stop

$1,827Alaska Airlines

Thu, 25 Jun - Tue, 7 Jul

06:00 - 07:05

STS

SYD

32h 05m

1 stop

09:10 - 15:55

SYD

STS

23h 45m

1 stop

$1,837Alaska Airlines

Sat, 27 Jun - Thu, 9 Jul

17:21 - 18:50

STS

SYD

32h 29m

2 stops

20:45 - 15:55

SYD

STS

36h 10m

2 stops

$1,917Multiple Airlines

Thu, 4 Jun - Tue, 16 Jun

17:21 - 18:50

STS

SYD

32h 29m

2 stops

20:45 - 15:55

SYD

STS

36h 10m

2 stops

$1,919Multiple Airlines

Thu, 4 Jun - Tue, 16 Jun

07:59 - 18:50

STS

SYD

41h 51m

2 stops

20:45 - 11:11

SYD

STS

31h 26m

2 stops

$1,934Multiple Airlines

Fri, 22 May - Fri, 29 May

17:21 - 18:50

STS

SYD

32h 29m

2 stops

20:45 - 10:45

SYD

STS

31h 00m

2 stops

$1,957Multiple Airlines

Thu, 4 Jun - Sun, 14 Jun

American Airlines flights from Santa Rosa to Sydney

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

American Airlines

22 May

STS13:03Santa Rosa Sonoma County

25h 27m

2 stops

SYD07:30Sydney Kingsford Smith

29 May

SYD09:10Sydney Kingsford Smith

29h 12m

1 stop

STS21:22Santa Rosa Sonoma County

$2,016

American Airlines

22 May

STS07:59Santa Rosa Sonoma County

30h 06m

1 stop

SYD07:05Sydney Kingsford Smith

29 May

SYD09:10Sydney Kingsford Smith

29h 12m

1 stop

STS21:22Santa Rosa Sonoma County

$2,021

American Airlines

7 June

STS13:00Santa Rosa Sonoma County

25h 05m

2 stops

SYD07:05Sydney Kingsford Smith

15 June

SYD09:10Sydney Kingsford Smith

43h 55m

2 stops

STS12:05Santa Rosa Sonoma County

$2,234

Alaska Airlines flights from Santa Rosa to Sydney

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

Alaska Airlines

25 June

STS11:47Santa Rosa Sonoma County

26h 18m

1 stop

SYD07:05Sydney Kingsford Smith

7 July

SYD09:10Sydney Kingsford Smith

23h 45m

1 stop

STS15:55Santa Rosa Sonoma County

$1,827

Alaska Airlines

27 June

STS06:00Santa Rosa Sonoma County

32h 05m

1 stop

SYD07:05Sydney Kingsford Smith

9 July

SYD09:10Sydney Kingsford Smith

23h 45m

1 stop

STS15:55Santa Rosa Sonoma County

$1,837

Alaska Airlines

26 June

STS19:32Santa Rosa Sonoma County

18h 33m

1 stop

SYD07:05Sydney Kingsford Smith

8 July

SYD09:10Sydney Kingsford Smith

23h 45m

1 stop

STS15:55Santa Rosa Sonoma County

$2,039

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/5

19:10-11:50

2 stops23h 40m

Sydney Kingsford Smith

Tue 12/5

13:15-23:59

2 stops27h 44m

$1,268

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/5

19:10-11:50

2 stops23h 40m

Sydney Kingsford Smith

Tue 12/5

13:15-23:59

2 stops27h 44m

$1,280

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/5

07:00-07:05

1 stop31h 05m

Sydney Kingsford Smith

Tue 12/5

09:10-23:59

1 stop31h 49m

$1,674

Fastest return journey

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/5

19:10-11:50

2 stops23h 40m

Sydney Kingsford Smith

Tue 12/5

17:50-23:59

1 stop23h 09m

$1,752

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 25/6

11:47-07:05

1 stop26h 18m

Sydney Kingsford Smith

Tue 7/7

09:10-15:55

1 stop23h 45m

$1,827

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sat 27/6

06:00-07:05

1 stop32h 05m

Sydney Kingsford Smith

Thu 9/7

09:10-15:55

1 stop23h 45m

$1,837

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 4/6

17:21-18:50

2 stops32h 29m

Sydney Kingsford Smith

Tue 16/6

20:45-15:55

2 stops36h 10m

$1,917

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 4/6

17:21-18:50

2 stops32h 29m

Sydney Kingsford Smith

Tue 16/6

20:45-15:55

2 stops36h 10m

$1,919

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 22/5

07:59-18:50

2 stops41h 51m

Sydney Kingsford Smith

Fri 29/5

20:45-11:11

2 stops31h 26m

$1,934

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 4/6

17:21-18:50

2 stops32h 29m

Sydney Kingsford Smith

Sun 14/6

20:45-10:45

2 stops31h 00m

$1,957

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 $1,686. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $4,161.

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

Fastest flight time	18h 58m
Direct flights	None

The fastest flight from Santa Rosa to Sydney takes 18h 58m

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 18h 58m, 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.