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Cheap flights from Santa Rosa to Sydney from $876

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Rosa to Sydney departing on 5/5. 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

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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 pm - 11:50 am
STS
-
SYD
23h 40m
2 stops
Multiple Airlines Logo
1:15 pm - 11:59 pm
SYD
-
STS
27h 44m
2 stops
$876Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
7:00 am - 6:50 pm
STS
-
SYD
42h 50m
2 stops
Multiple Airlines Logo
8:45 pm - 10:11 am
SYD
-
STS
30h 26m
2 stops
$1,156Multiple Airlines
Sun, May 17 - Sun, May 31
Multiple Airlines Logo
7:59 am - 6:50 pm
STS
-
SYD
41h 51m
2 stops
Multiple Airlines Logo
8:45 pm - 10:11 am
SYD
-
STS
30h 26m
2 stops
$1,186Multiple Airlines
Wed, May 20 - Sun, May 31
Multiple Airlines Logo
7:00 am - 6:50 pm
STS
-
SYD
42h 50m
2 stops
Multiple Airlines Logo
8:45 pm - 10:11 am
SYD
-
STS
30h 26m
2 stops
$1,190Multiple Airlines
Sun, May 17 - Fri, Jun 5
Multiple Airlines Logo
5:21 pm - 6:50 pm
STS
-
SYD
32h 29m
2 stops
Multiple Airlines Logo
8:45 pm - 10:11 am
SYD
-
STS
30h 26m
2 stops
$1,197Multiple Airlines
Thu, May 21 - Sun, May 31
Multiple Airlines Logo
7:10 pm - 11:50 am
STS
-
SYD
23h 40m
2 stops
Multiple Airlines Logo
5:50 pm - 11:10 am
SYD
-
STS
34h 20m
1 stop
$1,210Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
7:00 am - 6:50 pm
STS
-
SYD
42h 50m
2 stops
Multiple Airlines Logo
8:45 pm - 11:10 am
SYD
-
STS
31h 25m
2 stops
$1,217Multiple Airlines
Sun, May 17 - Tue, Jun 2
Multiple Airlines Logo
7:59 am - 6:50 pm
STS
-
SYD
41h 51m
2 stops
Multiple Airlines Logo
8:45 pm - 10:11 am
SYD
-
STS
30h 26m
2 stops
$1,219Multiple Airlines
Wed, May 20 - Fri, Jun 5
Multiple Airlines Logo
7:10 pm - 7:30 am
STS
-
SYD
19h 20m
1 stop
Multiple Airlines Logo
5:50 pm - 11:59 pm
SYD
-
STS
23h 09m
1 stop
$1,221Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
7:59 am - 6:50 pm
STS
-
SYD
41h 51m
2 stops
Multiple Airlines Logo
8:45 pm - 3:55 pm
SYD
-
STS
36h 10m
2 stops
$1,229Multiple Airlines
Sun, Jun 7 - Tue, Jun 23

Alaska Airlines flights from Santa Rosa to Sydney

Our best Alaska Airlines deals on Santa Rosa to Sydney flight tickets
Alaska Airlines
May 18
STS5:21 pmSanta Rosa Sonoma County
20h 44m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 1
SYD9:10 amSydney Kingsford Smith
19h 00m
1 stop
STS11:10 amSanta Rosa Sonoma County
$1,541
Alaska Airlines
Jun 7
STS7:59 amSanta Rosa Sonoma County
30h 06m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 23
SYD9:10 amSydney Kingsford Smith
18h 35m
1 stop
STS10:45 amSanta Rosa Sonoma County
$1,548
Alaska Airlines
May 18
STS5:21 pmSanta Rosa Sonoma County
20h 44m
1 stop
SYD7:05 amSydney Kingsford Smith
May 31
SYD9:10 amSydney Kingsford Smith
29h 12m
1 stop
STS9:22 pmSanta Rosa Sonoma County
$1,549

American Airlines flights from Santa Rosa to Sydney

Our best American Airlines deals on Santa Rosa to Sydney flight tickets
American Airlines
May 29
STS1:03 pmSanta Rosa Sonoma County
25h 02m
2 stops
SYD7:05 amSydney Kingsford Smith
Jun 10
SYD9:10 amSydney Kingsford Smith
27h 19m
1 stop
STS7:29 pmSanta Rosa Sonoma County
$1,364
American Airlines
May 29
STS7:59 amSanta Rosa Sonoma County
30h 06m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 10
SYD9:10 amSydney Kingsford Smith
23h 45m
1 stop
STS3:55 pmSanta Rosa Sonoma County
$1,367
American Airlines
May 29
STS1:03 pmSanta Rosa Sonoma County
25h 02m
2 stops
SYD7:05 amSydney Kingsford Smith
Jun 10
SYD9:10 amSydney Kingsford Smith
23h 40m
2 stops
STS3:50 pmSanta Rosa Sonoma County
$1,514

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 March 28, 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 5/5

7:10 pm-11:50 am

2 stops23h 40m

Sydney Kingsford Smith

Tue 5/12

1:15 pm-11:59 pm

2 stops27h 44m

$876

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 5/17

7:00 am-6:50 pm

2 stops42h 50m

Sydney Kingsford Smith

Sun 5/31

8:45 pm-10:11 am

2 stops30h 26m

$1,156

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 5/20

7:59 am-6:50 pm

2 stops41h 51m

Sydney Kingsford Smith

Sun 5/31

8:45 pm-10:11 am

2 stops30h 26m

$1,186

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 5/17

7:00 am-6:50 pm

2 stops42h 50m

Sydney Kingsford Smith

Fri 6/5

8:45 pm-10:11 am

2 stops30h 26m

$1,190

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 5/21

5:21 pm-6:50 pm

2 stops32h 29m

Sydney Kingsford Smith

Sun 5/31

8:45 pm-10:11 am

2 stops30h 26m

$1,197

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/5

7:10 pm-11:50 am

2 stops23h 40m

Sydney Kingsford Smith

Tue 5/12

5:50 pm-11:10 am

1 stop34h 20m

$1,210

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 5/17

7:00 am-6:50 pm

2 stops42h 50m

Sydney Kingsford Smith

Tue 6/2

8:45 pm-11:10 am

2 stops31h 25m

$1,217

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 5/20

7:59 am-6:50 pm

2 stops41h 51m

Sydney Kingsford Smith

Fri 6/5

8:45 pm-10:11 am

2 stops30h 26m

$1,219
Quickest round-trip

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 5/5

7:10 pm-7:30 am

1 stop19h 20m

Sydney Kingsford Smith

Tue 5/12

5:50 pm-11:59 pm

1 stop23h 09m

$1,221

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Sun 6/7

7:59 am-6:50 pm

2 stops41h 51m

Sydney Kingsford Smith

Tue 6/23

8:45 pm-3:55 pm

2 stops36h 10m

$1,229

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

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 Monday, with ticket prices averaging around $1,330.

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 04m

Direct flights

None
The fastest flight from Santa Rosa to Sydney takes 19h 04m
There are no direct flights from Santa Rosa to Sydney. There are no popular flight routes from Santa Rosa to Sydney.
Search flight deals

  • 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 04m, 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
Katoomba
Wollongong
Penrith
Manly
Randwick
Coogee
Leura
Lithgow
Cronulla
Charlestown
Terrigal
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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