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Cheap flights from San Diego to Sydney from $771

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SYD
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 13 January 2026.

Round-trip from

$1,488

One-way from

$771

Popular in

January

Cheapest in

August

Average price

$2,157
Air New Zealand
  • Air New Zealand
  • 9/2-16/2
  • 4 total stops
  • 50h 56m total
  • San Diego to Sydney
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Air Canada
  • Air Canada
  • 4/3
  • 1 total stop
  • 25h 50m total
  • San Diego to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($280 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($71 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find 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 13 January 2026.

Mon 9/211:08
SAN
-
SYD
2 stops28h 22m
Air New Zealand
Mon 16/213:55
SYD
-
SAN
2 stops22h 34m
Air New Zealand
Deal found 10/1$1,488
Wed 5/818:26
SAN
-
SYD
2 stops21h 19m
Air New Zealand
Wed 19/811:55
SYD
-
SAN
2 stops22h 54m
Air New Zealand
Deal found 12/1$1,491
Sun 12/406:20
SAN
-
SYD
2 stops35h 20m
Air New Zealand
Tue 21/409:55
SYD
-
SAN
2 stops24h 17m
Air New Zealand
Deal found 11/1$1,497
Tue 3/216:00
SAN
-
SYD
1 stop19h 10m
Qantas Airways
Thu 19/219:15
SYD
-
SAN
2 stops39h 34m
Qantas Airways
Deal found 12/1$1,513
Wed 26/818:26
SAN
-
SYD
2 stops21h 19m
Air New Zealand
Tue 1/919:20
SYD
-
SAN
2 stops39h 29m
Air New Zealand
Deal found 12/1$1,524
Sun 8/306:15
SAN
-
SYD
2 stops32h 30m
Air New Zealand
Sun 22/311:45
SYD
-
SAN
2 stops26h 03m
Air New Zealand
Deal found 12/1$1,527
Sat 28/218:10
SAN
-
SYD
2 stops43h 35m
Air New Zealand
Sat 14/319:15
SYD
-
SAN
2 stops42h 33m
Air New Zealand
Deal found 12/1$1,530
Sat 5/920:50
SAN
-
SYD
2 stops42h 55m
Air New Zealand
Sat 19/919:20
SYD
-
SAN
2 stops45h 24m
Air New Zealand
Deal found 12/1$1,531
Wed 25/211:05
SAN
-
SYD
2 stops26h 40m
Air New Zealand
Wed 4/307:45
SYD
-
SAN
2 stops28h 44m
Air New Zealand
Deal found 10/1$1,549
Fri 20/211:05
SAN
-
SYD
2 stops28h 25m
Air New Zealand
Mon 16/311:45
SYD
-
SAN
2 stops26h 03m
Air New Zealand
Deal found 12/1$1,556
Sun 1/311:05
SAN
-
SYD
2 stops26h 40m
Air New Zealand
Thu 12/313:55
SYD
-
SAN
2 stops23h 53m
Air New Zealand
Deal found 12/1$1,558
Tue 13/1018:26
SAN
-
SYD
2 stops22h 14m
Air New Zealand
Tue 20/1011:55
SYD
-
SAN
2 stops23h 54m
Air New Zealand
Deal found 12/1$1,561

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 13 January 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

Mon 11/5

10:55-08:45

2 stops28h 50m

Sydney Kingsford Smith

Thu 21/5

11:55-23:44

2 stops28h 49m

$1,558

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/3

06:15-10:30

2 stops34h 15m

Sydney Kingsford Smith

Sun 22/3

09:55-23:40

2 stops31h 45m

$1,601

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 17/3

11:03-08:45

2 stops27h 42m

Sydney Kingsford Smith

Wed 15/4

19:20-20:12

2 stops41h 52m

$1,662

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 4/5

16:26-06:55

1 stop21h 29m

Sydney Kingsford Smith

Mon 18/5

09:55-23:59

2 stops31h 04m

$1,679

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 7/2

06:15-08:45

2 stops31h 30m

Sydney Kingsford Smith

Sat 14/2

13:55-17:29

2 stops22h 34m

$1,697

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 25/2

18:05-09:35

1 stop20h 30m

Sydney Kingsford Smith

Wed 4/3

11:45-17:29

2 stops24h 44m

$1,737

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 3/2

17:00-19:45

1 stop31h 45m

Sydney Kingsford Smith

Tue 17/2

21:40-07:15

1 stop28h 35m

$1,749

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 20/3

11:03-08:45

2 stops27h 42m

Sydney Kingsford Smith

Tue 31/3

10:30-17:12

1 stop24h 42m

$1,749

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 1/3

15:29-19:45

1 stop33h 16m

Sydney Kingsford Smith

Thu 12/3

21:40-07:15

1 stop27h 35m

$1,759

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 3/2

14:29-19:45

1 stop34h 16m

Sydney Kingsford Smith

Thu 19/2

21:40-20:19

1 stop17h 39m

$1,759

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 18 results
1
2

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 9 January 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, September is the cheapest month in which you can book a flight from San Diego to Sydney (average of $756). Flying from San Diego to Sydney in January is currently the most expensive (average of $1,788). 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?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 13 January 2026.
Get a feel of what it's like to fly with United Airlines from San Diego to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,149 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,149 reviews
United Airlines
7.4
Good
9,149 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 28h 50m. Air New Zealand provides one of the quickest options available for as low as $1,558. San Diego and Sydney are separated by a distance of 12086 km.

  • What is the cheapest airline to fly from San Diego to Sydney round-trip?

    Cheapflights users have booked flights from San Diego to Sydney round-trip from $1,086. You may be able to fly from San Diego to Sydney for 34% less than the average price by searching for this airline.

  • 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, September is the cheapest month in which you can book a flight from San Diego to Sydney (average of $756). Flying from San Diego to Sydney in January is currently the most expensive (average of $1,788). 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
Terrigal
Katoomba
Manly
Lithgow
Coogee
Leura
Randwick
Cronulla
Bondi Beach

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from San Diego to Sydney

Discover the top airline that operate flights from San Diego to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 13 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,086Average$2,170FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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