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Cheap flights from Santa Rosa to Sydney from $696

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
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.
Alaska Airlines Logo
5:21 pm - 7:05 am
STS
-
SYD
20h 44m
1 stop
Alaska Airlines Logo
9:10 am - 11:10 am
SYD
-
STS
19h 00m
1 stop
$1,402Alaska Airlines
Mon, Jun 1 - Sun, Jun 7
American Airlines Logo
4:20 pm - 7:05 am
STS
-
SYD
21h 45m
2 stops
American Airlines Logo
5:50 pm - 12:05 pm
SYD
-
STS
35h 15m
2 stops
$1,422American Airlines
Tue, Jun 2 - Mon, Jun 8
American Airlines Logo
7:59 am - 7:05 am
STS
-
SYD
30h 06m
1 stop
American Airlines Logo
9:10 am - 3:50 pm
SYD
-
STS
23h 40m
2 stops
$1,429American Airlines
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
5:35 pm - 6:50 pm
STS
-
SYD
32h 15m
2 stops
Multiple Airlines Logo
8:45 pm - 3:55 pm
SYD
-
STS
36h 10m
2 stops
$1,500Multiple Airlines
Thu, Jun 25 - Thu, Jul 2
American Airlines Logo
11:38 am - 7:05 am
STS
-
SYD
26h 27m
1 stop
American Airlines Logo
9:10 am - 6:43 pm
SYD
-
STS
26h 33m
1 stop
$1,557American Airlines
Thu, Jun 25 - Thu, Jul 2
American Airlines Logo
1:09 pm - 7:05 am
STS
-
SYD
24h 56m
2 stops
American Airlines Logo
9:10 am - 3:55 pm
SYD
-
STS
23h 45m
1 stop
$1,562American Airlines
Thu, Jun 25 - Thu, Jul 2
American Airlines Logo
1:03 pm - 7:30 am
STS
-
SYD
25h 27m
2 stops
American Airlines Logo
9:10 am - 3:50 pm
SYD
-
STS
23h 40m
2 stops
$1,572American Airlines
Mon, Jun 1 - Mon, Jun 8
American Airlines Logo
7:59 am - 7:05 am
STS
-
SYD
30h 06m
1 stop
American Airlines Logo
9:10 am - 3:50 pm
SYD
-
STS
23h 40m
2 stops
$1,579American Airlines
Mon, Jun 1 - Mon, Jun 8
Qatar Airways Logo
6:00 am - 6:10 am
STS
-
SYD
55h 10m
2 stops
Qatar Airways Logo
7:00 pm - 6:43 pm
SYD
-
STS
40h 43m
3 stops
$1,661Qatar Airways
Mon, Jun 29 - Wed, Jul 8
Qatar Airways Logo
6:00 am - 6:10 am
STS
-
SYD
55h 10m
2 stops
Qatar Airways Logo
6:30 pm - 10:45 am
SYD
-
STS
57h 15m
3 stops
$1,667Qatar Airways
Wed, Jul 1 - Mon, Jul 13

Qantas Airways flights from Santa Rosa to Sydney

Our best Qantas Airways deals on Santa Rosa to Sydney flight tickets
Qantas Airways
Jul 1
STS5:35 pmSanta Rosa Sonoma County
20h 55m
1 stop
SYD7:30 amSydney Kingsford Smith
Jul 13
SYD6:00 amSydney Kingsford Smith
26h 55m
2 stops
STS3:55 pmSanta Rosa Sonoma County
$2,123
Qantas Airways
Jul 14
STS11:35 amSanta Rosa Sonoma County
26h 55m
1 stop
SYD7:30 amSydney Kingsford Smith
Jan 19
SYD6:45 pmSydney Kingsford Smith
44h 38m
2 stops
STS8:23 pmSanta Rosa Sonoma County
$2,595
Qantas Airways
Jun 2
STS5:21 pmSanta Rosa Sonoma County
21h 09m
1 stop
SYD7:30 amSydney Kingsford Smith
Jun 7
SYD5:50 pmSydney Kingsford Smith
20h 32m
1 stop
STS9:22 pmSanta Rosa Sonoma County
$2,608

American Airlines flights from Santa Rosa to Sydney

Our best American Airlines deals on Santa Rosa to Sydney flight tickets
American Airlines
Jun 2
STS4:20 pmSanta Rosa Sonoma County
21h 45m
2 stops
SYD7:05 amSydney Kingsford Smith
Jun 8
SYD5:50 pmSydney Kingsford Smith
35h 15m
2 stops
STS12:05 pmSanta Rosa Sonoma County
$1,422
American Airlines
Jun 1
STS7:59 amSanta Rosa Sonoma County
30h 06m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 7
SYD9:10 amSydney Kingsford Smith
23h 40m
2 stops
STS3:50 pmSanta Rosa Sonoma County
$1,429
American Airlines
Jun 25
STS11:38 amSanta Rosa Sonoma County
26h 27m
1 stop
SYD7:05 amSydney Kingsford Smith
Jul 2
SYD9:10 amSydney Kingsford Smith
26h 33m
1 stop
STS6:43 pmSanta Rosa Sonoma County
$1,557

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 May 15, 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
Quickest round-trip

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Mon 6/1

5:21 pm-7:05 am

1 stop20h 44m

Sydney Kingsford Smith

Sun 6/7

9:10 am-11:10 am

1 stop19h 00m

$1,402

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Tue 6/2

4:20 pm-7:05 am

2 stops21h 45m

Sydney Kingsford Smith

Mon 6/8

5:50 pm-12:05 pm

2 stops35h 15m

$1,422

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Mon 6/1

7:59 am-7:05 am

1 stop30h 06m

Sydney Kingsford Smith

Sun 6/7

9:10 am-3:50 pm

2 stops23h 40m

$1,429

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 6/25

5:35 pm-6:50 pm

2 stops32h 15m

Sydney Kingsford Smith

Thu 7/2

8:45 pm-3:55 pm

2 stops36h 10m

$1,500

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 6/25

11:38 am-7:05 am

1 stop26h 27m

Sydney Kingsford Smith

Thu 7/2

9:10 am-6:43 pm

1 stop26h 33m

$1,557

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Thu 6/25

1:09 pm-7:05 am

2 stops24h 56m

Sydney Kingsford Smith

Thu 7/2

9:10 am-3:55 pm

1 stop23h 45m

$1,562

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Mon 6/1

1:03 pm-7:30 am

2 stops25h 27m

Sydney Kingsford Smith

Mon 6/8

9:10 am-3:50 pm

2 stops23h 40m

$1,572

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Mon 6/1

7:59 am-7:05 am

1 stop30h 06m

Sydney Kingsford Smith

Mon 6/8

9:10 am-3:50 pm

2 stops23h 40m

$1,579

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Mon 6/29

6:00 am-6:10 am

2 stops55h 10m

Sydney Kingsford Smith

Wed 7/8

7:00 pm-6:43 pm

3 stops40h 43m

$1,661

Santa RosaSydney

STS - SYD

STSSYD

Santa Rosa Sonoma County

Wed 7/1

6:00 am-6:10 am

2 stops55h 10m

Sydney Kingsford Smith

Mon 7/13

6:30 pm-10:45 am

3 stops57h 15m

$1,667

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $1,217. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,357.

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

35h 21m

Direct flights

None
The fastest flight from Santa Rosa to Sydney takes 35h 21m
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 35h 21m, 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
Leura
Randwick
Lithgow
Manly
Coogee
Cronulla
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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