What is the cheapest airline that flies from San Diego to Sydney Kingsford Smith?

United Airlines is the most popular carrier operating from San Diego to Sydney Kingsford Smith

When did momondo last update prices for flights from San Diego Airport to Sydney Kingsford Smith Airport?

Prices for flights from San Diego Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How old do you have to be to fly from San Diego Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$718 Cheap Flights from San Diego to Sydney in 2026

Q: What is the typical price of a round-trip flight between San Diego and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $1,601 to $1,813. The lowest price recently found on this route was $1,553.

Find the cheapest flights from San Diego to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

17:16 - 18:50

SAN

SYD

32h 34m

1 stop

20:45 - 06:52

SYD

SAN

27h 07m

1 stop

$1,553Multiple Airlines

Sun, 9 Aug - Sun, 23 Aug

17:16 - 18:50

SAN

SYD

32h 34m

1 stop

20:45 - 06:32

SYD

SAN

26h 47m

1 stop

$1,575Multiple Airlines

Sun, 26 Jul - Sun, 9 Aug

15:57 - 18:50

SAN

SYD

33h 53m

1 stop

20:45 - 06:52

SYD

SAN

27h 07m

1 stop

$1,588Multiple Airlines

Sun, 9 Aug - Sun, 23 Aug

15:57 - 18:50

SAN

SYD

33h 53m

1 stop

20:45 - 06:52

SYD

SAN

27h 07m

1 stop

$1,635Multiple Airlines

Tue, 4 Aug - Fri, 21 Aug

21:27 - 18:50

SAN

SYD

28h 23m

2 stops

20:45 - 06:32

SYD

SAN

26h 47m

1 stop

$1,690Multiple Airlines

Wed, 29 Jul - Sun, 9 Aug

14:23 - 06:55

SAN

SYD

23h 32m

1 stop

12:00 - 21:03

SYD

SAN

26h 03m

1 stop

$1,703American Airlines

Wed, 12 Aug - Wed, 19 Aug

19:41 - 06:55

SAN

SYD

18h 14m

1 stop

09:30 - 14:08

SYD

SAN

21h 38m

2 stops

$1,711United Airlines

Sun, 26 Jul - Sun, 9 Aug

17:00 - 06:55

SAN

SYD

20h 55m

2 stops

09:30 - 11:35

SYD

SAN

19h 05m

1 stop

$1,720United Airlines

Wed, 12 Aug - Wed, 19 Aug

12:48 - 07:05

SAN

SYD

25h 17m

2 stops

12:00 - 18:54

SYD

SAN

23h 54m

1 stop

$1,722American Airlines

Wed, 12 Aug - Wed, 19 Aug

21:47 - 18:50

SAN

SYD

28h 03m

2 stops

20:45 - 06:52

SYD

SAN

27h 07m

1 stop

$1,723Multiple Airlines

Tue, 4 Aug - Fri, 21 Aug

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ANA flights from San Diego to Sydney

Our best ANA deals on San Diego to Sydney flight tickets

ANA

27 Oct

SAN19:41San Diego

30h 34m

2 stops

SYD20:15Sydney Kingsford Smith

7 Nov

SYD12:25Sydney Kingsford Smith

24h 34m

2 stops

SAN17:59San Diego

$1,875

ANA

26 Aug

SAN14:24San Diego

35h 46m

2 stops

SYD19:10Sydney Kingsford Smith

1 Sept

SYD11:45Sydney Kingsford Smith

45h 09m

2 stops

SAN15:54San Diego

$1,877

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets

United Airlines

12 Aug

SAN17:00San Diego

20h 55m

2 stops

SYD06:55Sydney Kingsford Smith

19 Aug

SYD09:30Sydney Kingsford Smith

19h 05m

1 stop

SAN11:35San Diego

$1,720

United Airlines

8 Aug

SAN16:09San Diego

21h 46m

1 stop

SYD06:55Sydney Kingsford Smith

19 Aug

SYD10:20Sydney Kingsford Smith

20h 24m

1 stop

SAN13:44San Diego

$1,793

United Airlines

22 Aug

SAN11:17San Diego

26h 43m

2 stops

SYD07:00Sydney Kingsford Smith

9 Sept

SYD10:20Sydney Kingsford Smith

20h 24m

1 stop

SAN13:44San Diego

$1,798

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 9/8

17:16-18:50

1 stop32h 34m

Sydney Kingsford Smith

Sun 23/8

20:45-06:52

1 stop27h 07m

$1,553

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 26/7

17:16-18:50

1 stop32h 34m

Sydney Kingsford Smith

Sun 9/8

20:45-06:32

1 stop26h 47m

$1,575

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 9/8

15:57-18:50

1 stop33h 53m

Sydney Kingsford Smith

Sun 23/8

20:45-06:52

1 stop27h 07m

$1,588

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 4/8

15:57-18:50

1 stop33h 53m

Sydney Kingsford Smith

Fri 21/8

20:45-06:52

1 stop27h 07m

$1,635

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 29/7

21:27-18:50

2 stops28h 23m

Sydney Kingsford Smith

Sun 9/8

20:45-06:32

1 stop26h 47m

$1,690

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 12/8

14:23-06:55

1 stop23h 32m

Sydney Kingsford Smith

Wed 19/8

12:00-21:03

1 stop26h 03m

$1,703

Fastest return journey

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 26/7

19:41-06:55

1 stop18h 14m

Sydney Kingsford Smith

Sun 9/8

09:30-14:08

2 stops21h 38m

$1,711

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 12/8

17:00-06:55

2 stops20h 55m

Sydney Kingsford Smith

Wed 19/8

09:30-11:35

1 stop19h 05m

$1,720

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 12/8

12:48-07:05

2 stops25h 17m

Sydney Kingsford Smith

Wed 19/8

12:00-18:54

1 stop23h 54m

$1,722

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 4/8

21:47-18:50

2 stops28h 03m

Sydney Kingsford Smith

Fri 21/8

20:45-06:52

1 stop27h 07m

$1,723

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Diego 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

Prices

Airlines

What is the typical price of a round-trip flight between San Diego and Sydney?

What is the cheapest month to fly to Sydney?

The month of April is, on average, the cheapest month to fly to Sydney from San Diego, with most prices found around $1,189. If you aren’t able to travel to Sydney during the month of April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,381.

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

You are more likely to see cheaper flights to Sydney from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,653 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from San Diego for as low as $1,172 on momondo.

Can stopping save me money on San Diego to Sydney flights?

You could potentially save up to 22% on your flight if you consider stops on a San Diego to Sydney flight.

How have San Diego to Sydney flight prices changed over time?

As of July 2026, prices for San Diego to Sydney flights are approximately 39% cheaper when compared to flights at the same time last year.

When to book flights from San Diego to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap San Diego to Sydney (SAN to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Sydney

Fastest flight time	19h 28m
Direct flights	None

The fastest flight from San Diego to Sydney takes 19h 28m

There are no direct flights from San Diego to Sydney. There are no popular flight routes from San Diego to Sydney.

Search flight deals

Frequently asked questions about flying from San Diego to Sydney

How far is San Diego to Sydney Kingsford Smith by plane?
A flight from San Diego to Sydney Kingsford Smith will travel around 12082.4 km. Flights usually cover this in 19h 28m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Diego Airport to Sydney Kingsford Smith Airport?
Prices for flights from San Diego Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How old do you have to be to fly from San Diego Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Sydney?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from San Diego.

Can I find flights from San Diego to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from San Diego which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Diego to Sydney?

Once you have performed a search for San Diego to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Diego to Sydney right now. Can momondo alert me if prices change?

Price alerts on flights to Sydney from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.