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Cheap flights from San Diego to Sydney from $812

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Sydney departing on 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Diego to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
18:10 - 09:35SAN-SYD
20h 25m1 stop
Air Canada Logo
11:20 - 17:24SYD-SAN
25h 04m1 stop
$1,244Air Canada
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Sun, 8 Feb - Sun, 22 Feb
Air Canada Logo
12:45 - 18:05SAN-SYD
34h 20m2 stops
Air Canada Logo
11:20 - 17:24SYD-SAN
25h 04m1 stop
$1,296Air Canada
Find Deal
Sun, 8 Feb - Sun, 22 Feb
Multiple Airlines Logo
12:45 - 09:35SAN-SYD
25h 50m1 stop
Multiple Airlines Logo
21:20 - 11:03SYD-SAN
32h 43m2 stops
$1,299Multiple Airlines
Find Deal
Tue, 24 Feb - Sat, 7 Mar
Multiple Airlines Logo
18:10 - 09:35SAN-SYD
20h 25m1 stop
Multiple Airlines Logo
07:45 - 12:03SYD-SAN
23h 18m2 stops
$1,320Multiple Airlines
Find Deal
Sun, 16 Nov - Sun, 14 Dec
American Airlines Logo
16:25 - 09:00SAN-SYD
21h 35m2 stops
American Airlines Logo
11:20 - 18:25SYD-SAN
26h 05m2 stops
$1,462American Airlines
Find Deal
Tue, 2 Dec - Tue, 9 Dec
American Airlines Logo
12:50 - 09:00SAN-SYD
25h 10m2 stops
American Airlines Logo
17:45 - 18:25SYD-SAN
19h 40m2 stops
$1,463American Airlines
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Wed, 3 Dec - Wed, 17 Dec
United Airlines Logo
19:50 - 09:15SAN-SYD
18h 25m1 stop
United Airlines Logo
14:00 - 15:02SYD-SAN
20h 02m1 stop
$1,480United Airlines
Find Deal
Sun, 16 Nov - Sun, 14 Dec
United Airlines Logo
11:02 - 09:05SAN-SYD
27h 03m1 stop
United Airlines Logo
11:20 - 10:21SYD-SAN
18h 01m1 stop
$1,482United Airlines
Find Deal
Wed, 3 Dec - Wed, 17 Dec
Delta Logo
16:04 - 08:30SAN-SYD
21h 26m1 stop
Delta Logo
10:40 - 15:23SYD-SAN
23h 43m1 stop
$1,509Delta
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Tue, 2 Dec - Tue, 9 Dec
Delta Logo
15:59 - 07:30SAN-SYD
21h 31m1 stop
Delta Logo
13:15 - 18:56SYD-SAN
23h 41m1 stop
$1,572Delta
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Thu, 12 Mar - Mon, 16 Mar

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
16 Nov
SAN19:50San Diego
18h 25m
1 stop
SYD09:15Sydney Kingsford Smith
14 Dec
SYD14:00Sydney Kingsford Smith
20h 02m
1 stop
SAN15:02San Diego
$1,480
Find similar
United Airlines
3 Dec
SAN11:02San Diego
27h 03m
1 stop
SYD09:05Sydney Kingsford Smith
17 Dec
SYD11:20Sydney Kingsford Smith
18h 01m
1 stop
SAN10:21San Diego
$1,482
Find similar
United Airlines
2 Dec
SAN13:05San Diego
25h 10m
1 stop
SYD09:15Sydney Kingsford Smith
20 Dec
SYD14:00Sydney Kingsford Smith
25h 48m
1 stop
SAN20:48San Diego
$1,557
Find similar

Delta flights from San Diego to Sydney

Our best Delta deals on San Diego to Sydney flight tickets
Delta
2 Dec
SAN16:04San Diego
21h 26m
1 stop
SYD08:30Sydney Kingsford Smith
9 Dec
SYD10:40Sydney Kingsford Smith
23h 43m
1 stop
SAN15:23San Diego
$1,509
Find similar
Delta
12 Mar
SAN15:59San Diego
21h 31m
1 stop
SYD07:30Sydney Kingsford Smith
16 Mar
SYD13:15Sydney Kingsford Smith
23h 41m
1 stop
SAN18:56San Diego
$1,572
Find similar
Delta
6 Nov
SAN09:45San Diego
27h 45m
2 stops
SYD08:30Sydney Kingsford Smith
11 Nov
SYD10:40Sydney Kingsford Smith
20h 21m
2 stops
SAN12:01San Diego
$1,579
Find similar

momondo 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, momondo users made 78,305 searches. Data last updated 5 November 2025.
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

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/2

18:10-09:35

1 stop20h 25m

Sydney Kingsford Smith

Sun 22/2

11:20-17:24

1 stop25h 04m

$1,244

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/2

12:45-18:05

2 stops34h 20m

Sydney Kingsford Smith

Sun 22/2

11:20-17:24

1 stop25h 04m

$1,296

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 24/2

12:45-09:35

1 stop25h 50m

Sydney Kingsford Smith

Sat 7/3

21:20-11:03

2 stops32h 43m

$1,299

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 16/11

18:10-09:35

1 stop20h 25m

Sydney Kingsford Smith

Sun 14/12

07:45-12:03

2 stops23h 18m

$1,320

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 2/12

16:25-09:00

2 stops21h 35m

Sydney Kingsford Smith

Tue 9/12

11:20-18:25

2 stops26h 05m

$1,462

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 3/12

12:50-09:00

2 stops25h 10m

Sydney Kingsford Smith

Wed 17/12

17:45-18:25

2 stops19h 40m

$1,463

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 16/11

19:50-09:15

1 stop18h 25m

Sydney Kingsford Smith

Sun 14/12

14:00-15:02

1 stop20h 02m

$1,480

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 3/12

11:02-09:05

1 stop27h 03m

Sydney Kingsford Smith

Wed 17/12

11:20-10:21

1 stop18h 01m

$1,482

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 2/12

16:04-08:30

1 stop21h 26m

Sydney Kingsford Smith

Tue 9/12

10:40-15:23

1 stop23h 43m

$1,509

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 12/3

15:59-07:30

1 stop21h 31m

Sydney Kingsford Smith

Mon 16/3

13:15-18:56

1 stop23h 41m

$1,572

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

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

What is the cheapest month to fly to Sydney?

The month of August is, on average, the cheapest month to fly to Sydney from San Diego, with most prices found around $1,459. If you aren’t able to travel to Sydney during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,483.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,714. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,947.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from San Diego to Sydney in the morning for as low as $1,680. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,840 on average. Flights to Sydney from San Diego in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight 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 $1,688 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 $1,436 on momondo.

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

You could potentially save up to 14% 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 November 2025, prices for San Diego to Sydney flights are approximately 31% 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

Direct flights

None
There are no direct flights from San Diego to Sydney. There are no popular flight routes from San Diego to Sydney.
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  • 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 17h 31m, 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 many operators does momondo search for flights from San Diego Airport to Sydney Kingsford Smith Airport?

  • 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.

  • What is the most popular airline from San Diego to Sydney?

Best airlines flying from San Diego to Sydney

Compare and see reviews for airlines that fly from San Diego to Sydney with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,119Free cancellationRating
7.4
9,002 reviews
Search United Airlines flights

Travelling to a place near Sydney?

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

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.

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