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Cheap flights from Santa Rosa to Sydney from $595

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Rosa to Sydney departing on 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Santa Rosa to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:10 am - 11:50 am
STS
-
SYD
35h 40m
2 stops
Multiple Airlines Logo
5:50 pm - 9:31 pm
SYD
-
STS
20h 41m
1 stop
$1,182Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
1:40 pm - 6:50 pm
STS
-
SYD
36h 10m
2 stops
Multiple Airlines Logo
8:45 pm - 11:21 am
SYD
-
STS
31h 36m
2 stops
$1,227Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
12:58 pm - 6:25 am
STS
-
SYD
24h 27m
2 stops
American Airlines Logo
12:00 pm - 12:09 pm
SYD
-
STS
41h 09m
1 stop
$1,274American Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
5:35 pm - 7:30 am
STS
-
SYD
20h 55m
1 stop
Multiple Airlines Logo
5:50 pm - 9:31 pm
SYD
-
STS
20h 41m
1 stop
$1,281Multiple Airlines
Fri, Aug 14 - Fri, Aug 21
Qantas Airways Logo
5:35 pm - 7:30 am
STS
-
SYD
20h 55m
1 stop
Qantas Airways Logo
9:10 am - 3:55 pm
SYD
-
STS
23h 45m
1 stop
$1,283Qantas Airways
Thu, Jul 30 - Tue, Aug 11
Multiple Airlines Logo
1:06 pm - 6:50 pm
STS
-
SYD
36h 44m
2 stops
Multiple Airlines Logo
8:45 pm - 6:43 pm
SYD
-
STS
38h 58m
2 stops
$1,286Multiple Airlines
Tue, Jul 28 - Sun, Aug 2
Qantas Airways Logo
5:35 pm - 7:30 am
STS
-
SYD
20h 55m
1 stop
Qantas Airways Logo
5:50 pm - 3:55 pm
SYD
-
STS
39h 05m
1 stop
$1,291Qantas Airways
Thu, Jul 30 - Sun, Aug 9
Multiple Airlines Logo
12:01 pm - 7:30 am
STS
-
SYD
26h 29m
1 stop
Multiple Airlines Logo
5:50 pm - 9:31 pm
SYD
-
STS
20h 41m
1 stop
$1,295Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
12:58 pm - 7:05 am
STS
-
SYD
25h 07m
2 stops
American Airlines Logo
10:00 pm - 12:09 pm
SYD
-
STS
55h 09m
2 stops
$1,296American Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
12:01 pm - 6:25 am
STS
-
SYD
25h 24m
2 stops
Multiple Airlines Logo
5:50 pm - 9:31 pm
SYD
-
STS
20h 41m
1 stop
$1,298Multiple Airlines
Tue, Sep 1 - Tue, Sep 8

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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
Aug 14
STS12:58 pmSanta Rosa Sonoma County
24h 27m
2 stops
SYD6:25 amSydney Kingsford Smith
Aug 21
SYD12:00 pmSydney Kingsford Smith
41h 09m
1 stop
STS12:09 pmSanta Rosa Sonoma County
$1,274
American Airlines
Aug 14
STS12:58 pmSanta Rosa Sonoma County
25h 07m
2 stops
SYD7:05 amSydney Kingsford Smith
Aug 21
SYD10:00 pmSydney Kingsford Smith
55h 09m
2 stops
STS12:09 pmSanta Rosa Sonoma County
$1,296
American Airlines
Jul 25
STS11:35 amSanta Rosa Sonoma County
26h 30m
1 stop
SYD7:05 amSydney Kingsford Smith
Aug 3
SYD9:10 amSydney Kingsford Smith
23h 45m
1 stop
STS3:55 pmSanta Rosa Sonoma County
$1,493

Qantas Airways flights from Santa Rosa to Sydney

Our best Qantas Airways deals on Santa Rosa to Sydney flight tickets
Qantas Airways
Jul 30
STS5:35 pmSanta Rosa Sonoma County
20h 55m
1 stop
SYD7:30 amSydney Kingsford Smith
Aug 10
SYD9:10 amSydney Kingsford Smith
23h 45m
1 stop
STS3:55 pmSanta Rosa Sonoma County
$1,283
Qantas Airways
Jul 30
STS5:35 pmSanta Rosa Sonoma County
20h 55m
1 stop
SYD7:30 amSydney Kingsford Smith
Aug 9
SYD5:50 pmSydney Kingsford Smith
39h 05m
1 stop
STS3:55 pmSanta Rosa Sonoma County
$1,291
Qantas Airways
Jul 30
STS5:35 pmSanta Rosa Sonoma County
20h 55m
1 stop
SYD7:30 amSydney Kingsford Smith
Aug 8
SYD9:10 amSydney Kingsford Smith
23h 45m
1 stop
STS3:55 pmSanta Rosa Sonoma County
$1,333

momondo Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 2, 2026.
Use the filters below to find and compare flights from Santa Rosa to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 9/1

7:10 am-11:50 am

2 stops35h 40m

Sydney Kingsford Smith

Tue 9/8

5:50 pm-9:31 pm

1 stop20h 41m

$1,182

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 9/1

1:40 pm-6:50 pm

2 stops36h 10m

Sydney Kingsford Smith

Tue 9/8

8:45 pm-11:21 am

2 stops31h 36m

$1,227

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 8/14

12:58 pm-6:25 am

2 stops24h 27m

Sydney Kingsford Smith

Fri 8/21

12:00 pm-12:09 pm

1 stop41h 09m

$1,274
Quickest round-trip

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 8/14

5:35 pm-7:30 am

1 stop20h 55m

Sydney Kingsford Smith

Fri 8/21

5:50 pm-9:31 pm

1 stop20h 41m

$1,281

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 7/30

5:35 pm-7:30 am

1 stop20h 55m

Sydney Kingsford Smith

Tue 8/11

9:10 am-3:55 pm

1 stop23h 45m

$1,283

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 7/28

1:06 pm-6:50 pm

2 stops36h 44m

Sydney Kingsford Smith

Sun 8/2

8:45 pm-6:43 pm

2 stops38h 58m

$1,286

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 7/30

5:35 pm-7:30 am

1 stop20h 55m

Sydney Kingsford Smith

Sun 8/9

5:50 pm-3:55 pm

1 stop39h 05m

$1,291

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 9/1

12:01 pm-7:30 am

1 stop26h 29m

Sydney Kingsford Smith

Tue 9/8

5:50 pm-9:31 pm

1 stop20h 41m

$1,295

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Fri 8/14

12:58 pm-7:05 am

2 stops25h 07m

Sydney Kingsford Smith

Fri 8/21

10:00 pm-12:09 pm

2 stops55h 09m

$1,296

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 9/1

12:01 pm-6:25 am

2 stops25h 24m

Sydney Kingsford Smith

Tue 9/8

5:50 pm-9:31 pm

1 stop20h 41m

$1,298

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

The cheapest day to depart from Santa Rosa to Sydney is on a Sunday when prices can be found for as low as $1,255. The most expensive day to fly to Sydney is Wednesday, with ticket prices averaging around $1,416.

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 round-trip 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

19h 39m

Direct flights

None
The fastest flight from Santa Rosa to Sydney takes 19h 39m
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?

    The distance between Santa Rosa Sonoma County and Sydney Kingsford Smith is about 7428.0 mi. Flights usually cover this in 19h 39m, 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 refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Penrith
Wollongong
Katoomba
Randwick
Leura
Lithgow
Coogee
Cronulla
Manly
Terrigal
Charlestown
Swansea

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Santa Rosa to Sydney for you.

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

Flights from Santa Rosa to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Santa Rosa to Sydney flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Sydney from Santa Rosa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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