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Cheap flights from San Diego to Sydney from $687

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SYD
14 Mar — 21 Mar1
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 12 February 2026.

Tue 3/308:00
SAN
-
SYD
1 stop27h 10m
Qantas Airways
Tue 10/319:15
SYD
-
SAN
2 stops43h 22m
Qantas Airways
Deal found 10/2$1,327
Tue 10/311:03
SAN
-
SYD
2 stops27h 42m
Air New Zealand
Tue 17/311:45
SYD
-
SAN
2 stops26h 03m
Air New Zealand
Deal found 10/2$1,414
Tue 13/1010:45
SAN
-
SYD
2 stops28h 00m
Air New Zealand
Tue 20/1011:55
SYD
-
SAN
2 stops23h 54m
Air New Zealand
Deal found 10/2$1,416
Wed 26/818:26
SAN
-
SYD
2 stops21h 19m
Air New Zealand
Tue 1/919:20
SYD
-
SAN
2 stops45h 24m
Air New Zealand
Deal found 10/2$1,445
Sat 21/1120:50
SAN
-
SYD
2 stops40h 55m
Air New Zealand
Sun 29/1119:15
SYD
-
SAN
2 stops47h 29m
Air New Zealand
Deal found 11/2$1,452
Sun 24/506:15
SAN
-
SYD
2 stops33h 30m
Air New Zealand
Tue 2/611:55
SYD
-
SAN
2 stops29h 04m
Air New Zealand
Deal found 10/2$1,497
Tue 17/209:00
SAN
-
SYD
1 stop26h 55m
American Airlines
Wed 25/214:05
SYD
-
SAN
1 stop23h 18m
American Airlines
Deal found 8/2$1,499
Fri 1/510:55
SAN
-
SYD
2 stops28h 50m
Air New Zealand
Sat 16/519:20
SYD
-
SAN
2 stops45h 39m
Air New Zealand
Deal found 10/2$1,509

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 12 February 2026.

Round-trip from

$1,327

One-way from

$687

Popular in

January

Cheapest in

August

Average price

$1,610
Qantas Airways
  • Qantas Airways
  • 3/3-10/3
  • 3 total stops
  • 70h 32m total
  • San Diego to Sydney
Search Deals
7/3
  • 7/3
  • 2 total stops
  • 34h 40m total
  • San Diego to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($253 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($62 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 12 February 2026.
Use the filters below to find and compare flights from San Diego to Sydney that are best for you.

Fly from

San Diego

Fly to

Sydney

Route

Depart

Return

Price

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 3/3

08:00-06:10

1 stop27h 10m

Sydney Kingsford Smith

Tue 10/3

19:15-20:37

2 stops43h 22m

$1,327

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 24/5

06:15-08:45

2 stops33h 30m

Sydney Kingsford Smith

Tue 2/6

11:55-23:59

2 stops29h 04m

$1,497

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 3/3

12:30-06:10

1 stop22h 40m

Sydney Kingsford Smith

Wed 11/3

14:00-21:34

2 stops25h 34m

$1,504

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 1/5

10:55-08:45

2 stops28h 50m

Sydney Kingsford Smith

Sat 16/5

19:20-23:59

2 stops45h 39m

$1,509

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 6/6

15:15-06:50

1 stop22h 35m

Sydney Kingsford Smith

Wed 24/6

09:15-18:54

1 stop26h 39m

$1,544

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 11/3

07:45-08:45

2 stops31h 00m

Sydney Kingsford Smith

Wed 18/3

13:55-20:53

2 stops24h 58m

$1,547

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/3

16:55-09:00

2 stops22h 05m

Sydney Kingsford Smith

Tue 17/3

22:00-22:23

2 stops42h 23m

$1,636

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 25/2

08:19-19:45

1 stop40h 26m

Sydney Kingsford Smith

Tue 17/3

21:40-07:15

1 stop27h 35m

$1,664

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 26/2

17:00-19:45

1 stop31h 45m

Sydney Kingsford Smith

Fri 6/3

21:40-20:19

1 stop17h 39m

$1,665

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 25/2

15:19-19:45

1 stop33h 26m

Sydney Kingsford Smith

Fri 6/3

21:40-20:19

1 stop17h 39m

$1,665

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 18 results
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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?

Use this chart to determine the optimal time to book a return flight from San Diego to Sydney. Price data was last updated on 6 February 2026.

Booking 82 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 $1,065). Flying from San Diego to Sydney in January is currently the most expensive (average of $1,690). 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.

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 22h 35m. Qantas Airways provides one of the quickest options available for as low as $1,544. 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 $1,065). Flying from San Diego to Sydney in January is currently the most expensive (average of $1,690). 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
Manly
Katoomba
Terrigal
Lithgow
Leura
Coogee
Cronulla
Randwick
Bondi Beach

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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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