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Cheap flights from San Diego to Sydney from $844

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SYD
7 Aug — 14 Aug1
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 8 July 2026.

Sun 9/809:07
SAN
-
SYD
1 stop40h 43m
Multiple Airlines
Sun 23/820:45
SYD
-
SAN
1 stop27h 07m
Multiple Airlines
Deal found 3/7$1,475
Sun 26/715:57
SAN
-
SYD
1 stop33h 53m
Multiple Airlines
Sun 9/820:45
SYD
-
SAN
1 stop26h 47m
Multiple Airlines
Deal found 7/7$1,510
Sat 31/1007:05
SAN
-
SYD
2 stops43h 10m
Multiple Airlines
Sun 15/1112:25
SYD
-
SAN
2 stops24h 34m
Multiple Airlines
Deal found 4/7$1,566
Tue 13/1008:35
SAN
-
SYD
1 stop40h 15m
Alaska Airlines
Tue 20/1020:45
SYD
-
SAN
1 stop17h 54m
Alaska Airlines
Deal found 7/7$1,577
Sun 18/1008:35
SAN
-
SYD
1 stop40h 15m
Multiple Airlines
Fri 30/1021:40
SYD
-
SAN
1 stop26h 55m
Multiple Airlines
Deal found 7/7$1,602
Sun 1/1111:00
SAN
-
SYD
1 stop37h 45m
Multiple Airlines
Sun 15/1121:40
SYD
-
SAN
1 stop17h 28m
Multiple Airlines
Deal found 4/7$1,612
Sat 31/1012:42
SAN
-
SYD
2 stops37h 33m
ANA
Sun 15/1112:25
SYD
-
SAN
2 stops24h 34m
ANA
Deal found 7/7$1,625
Tue 27/1011:02
SAN
-
SYD
1 stop38h 43m
Multiple Airlines
Sat 7/1121:40
SYD
-
SAN
1 stop17h 28m
Multiple Airlines
Deal found 3/7$1,626
Fri 23/1017:00
SAN
-
SYD
2 stops57h 15m
Multiple Airlines
Thu 12/1112:25
SYD
-
SAN
2 stops24h 34m
Multiple Airlines
Deal found 7/7$1,631
Wed 8/715:57
SAN
-
SYD
1 stop33h 53m
Multiple Airlines
Tue 21/720:45
SYD
-
SAN
1 stop26h 47m
Multiple Airlines
Deal found 7/7$1,644

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 8 July 2026.

Round-trip from

$1,475

One-way from

$844

Popular in

January

Cheapest in

April

Average price

$1,649
9/8-23/8
  • 9/8-23/8
  • 2 total stops
  • 67h 50m total
  • San Diego to Sydney
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 20/9
  • 1 total stop
  • 32h 35m total
  • San Diego to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($373 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($88 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 8 July 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

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 26/7

06:15-06:55

1 stop31h 40m

Sydney Kingsford Smith

Tue 11/8

10:20-22:47

1 stop29h 27m

$1,696

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 9/8

06:29-06:50

2 stops31h 21m

Sydney Kingsford Smith

Sun 23/8

09:15-23:50

2 stops31h 35m

$1,714

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 18/9

13:36-06:50

2 stops24h 14m

Sydney Kingsford Smith

Mon 5/10

10:15-10:10

1 stop17h 55m

$1,961

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 11/7

16:09-07:00

2 stops45h 51m

Sydney Kingsford Smith

Mon 20/7

10:20-16:07

1 stop22h 47m

$1,995

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 26/8

12:30-18:50

1 stop37h 20m

Sydney Kingsford Smith

Tue 1/9

20:45-09:06

2 stops29h 21m

$2,014

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 1/8

09:46-06:50

2 stops28h 04m

Sydney Kingsford Smith

Sat 8/8

09:15-22:52

2 stops30h 37m

$2,335
Fastest return journey

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 11/7

15:00-06:50

1 stop22h 50m

Sydney Kingsford Smith

Mon 20/7

09:15-09:52

1 stop17h 37m

$2,805

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 17/9

10:40-19:10

3 stops63h 30m

Sydney Kingsford Smith

Sun 4/10

22:05-20:01

3 stops63h 56m

$2,953

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 10/9

15:00-19:15

2 stops35h 15m

Sydney Kingsford Smith

Wed 30/9

14:50-20:01

3 stops46h 11m

$4,198

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 7/9

13:11-06:05

3 stops47h 54m

Sydney Kingsford Smith

Wed 16/9

14:35-14:55

2 stops41h 20m

$4,984

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 21 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 $1,181). Flying from San Diego to Sydney in January is currently the most expensive (average of $2,311). 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 31h 21m. United Airlines provides one of the quickest options available for as low as $1,714. 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 $1,181). Flying from San Diego to Sydney in January is currently the most expensive (average of $2,311). 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
Manly
Lithgow
Cronulla
Terrigal
Randwick
Leura
Bondi Beach
Coogee

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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.

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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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