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Cheap flights from San Diego to Sydney from $871

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SYD
26 Jun — 3 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to Sydney
Explore the most affordable flight options available from San Diego to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 May 2026.

Tue 23/616:14
SAN
-
SYD
1 stop21h 11m
Multiple Airlines
Tue 30/621:25
SYD
-
SAN
1 stop29h 10m
Multiple Airlines
Deal found 26/5$1,430
Sat 22/814:24
SAN
-
SYD
2 stops35h 46m
Multiple Airlines
Wed 9/911:45
SYD
-
SAN
2 stops45h 27m
Multiple Airlines
Deal found 24/5$1,468
Mon 25/508:10
SAN
-
SYD
1 stop30h 10m
Air Canada
Tue 9/609:20
SYD
-
SAN
1 stop19h 30m
Air Canada
Deal found 24/5$1,501
Sun 31/512:30
SAN
-
SYD
1 stop25h 50m
Air Canada
Mon 15/609:20
SYD
-
SAN
1 stop19h 30m
Air Canada
Deal found 26/5$1,510
Sun 24/512:30
SAN
-
SYD
1 stop25h 50m
Air Canada
Tue 9/609:20
SYD
-
SAN
1 stop19h 30m
Air Canada
Deal found 23/5$1,511
Tue 28/708:15
SAN
-
SYD
1 stop30h 05m
Air Canada
Tue 4/809:20
SYD
-
SAN
1 stop28h 38m
Air Canada
Deal found 24/5$1,542
Tue 28/708:15
SAN
-
SYD
1 stop30h 05m
Asiana Airlines
Tue 4/809:20
SYD
-
SAN
1 stop19h 33m
Asiana Airlines
Deal found 24/5$1,566
Sun 24/516:55
SAN
-
SYD
2 stops25h 00m
Multiple Airlines
Tue 9/609:20
SYD
-
SAN
1 stop19h 30m
Multiple Airlines
Deal found 23/5$1,596
Sun 24/516:22
SAN
-
SYD
2 stops21h 43m
American Airlines
Tue 9/609:10
SYD
-
SAN
2 stops23h 17m
American Airlines
Deal found 23/5$1,600

Find flight deals from San Diego to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 May 2026.

Round-trip from

$1,430

One-way from

$871

Popular in

January

Cheapest in

April

Average price

$1,619
23/6-30/6
  • 23/6-30/6
  • 2 total stops
  • 50h 21m total
  • San Diego to Sydney
Search Deals
ANA
  • ANA
  • 17/8
  • 2 total stops
  • 35h 46m total
  • San Diego to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($337 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($69 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Diego 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, Cheapflights users made 647,157 searches. Data last updated 27 May 2026.
Use the filters below to find and compare flights from San Diego to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 12/8

17:00-06:55

2 stops20h 55m

Sydney Kingsford Smith

Wed 26/8

09:30-11:35

1 stop19h 05m

$1,617

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 13/10

20:59-18:50

2 stops27h 51m

Sydney Kingsford Smith

Tue 20/10

20:45-09:00

2 stops30h 15m

$1,808

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 5/10

13:28-07:55

1 stop24h 27m

Sydney Kingsford Smith

Mon 19/10

11:20-09:58

1 stop16h 38m

$1,827

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 23/6

06:15-06:50

2 stops31h 35m

Sydney Kingsford Smith

Tue 30/6

09:15-22:18

2 stops30h 03m

$1,856

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 4/7

10:49-07:00

1 stop27h 11m

Sydney Kingsford Smith

Sat 11/7

09:30-10:08

1 stop17h 38m

$1,969

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 6/8

16:09-07:00

2 stops21h 51m

Sydney Kingsford Smith

Wed 12/8

09:30-11:35

1 stop19h 05m

$2,047

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 7/9

19:59-19:15

2 stops30h 16m

Sydney Kingsford Smith

Wed 16/9

14:50-20:01

3 stops46h 11m

$3,427

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 11/8

10:04-06:25

1 stop27h 21m

Sydney Kingsford Smith

Thu 13/8

20:15-21:07

1 stop17h 52m

$3,794

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 26/8

20:30-19:15

3 stops53h 45m

Sydney Kingsford Smith

Tue 1/9

11:00-10:15

2 stops40h 15m

$4,429
Cheapest one-way

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 17/8

14:24-19:10

2 stops35h 46m

$871

Flights are sorted by cheapest return flights first.

Deals found on 24/5

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from San Diego to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from San Diego with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Sydney

How far ahead should I book a flight from San Diego to Sydney?

Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Diego to Sydney?

Currently, April is the cheapest month in which you can book a flight from San Diego to Sydney (average of $1,137). Flying from San Diego to Sydney in January is currently the most expensive (average of $2,110). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from San Diego to Sydney?

Related info for your journey

Find useful and relevant information for your journey from San Diego to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Diego to Sydney?

    A quick flight from San Diego to Sydney can take about 20h 55m. United Airlines provides one of the quickest options available for as low as $1,617. San Diego and Sydney are separated by a distance of 12086 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from San Diego to Sydney that include hotel bookings?

    Yes. In addition to deals on San Diego to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Sydney.

  • Can I find deals for business class flights from San Diego to Sydney?

    Yes. Cheapflights offers flight deals from San Diego to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Sydney?

    Currently, April is the cheapest month in which you can book a flight from San Diego to Sydney (average of $1,137). Flying from San Diego to Sydney in January is currently the most expensive (average of $2,110). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

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

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How does Cheapflights help users find flights from San Diego to Sydney?

Cheapflights makes it easy to find San Diego to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Sydney?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Diego to Sydney for you. Better yet — we are completely free to use.

Can Cheapflights find flights from San Diego to Sydney with no change fees?

Certainly. Search results for flights to Sydney from San Diego shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Diego to Sydney become cheaper?

Of course! You can now track prices for flights from San Diego to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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