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Cheap flights from San Diego to Sydney from $782

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 20/1. 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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Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
18:05 - 14:40
SAN
-
SYD
25h 35m2 stops
Air Canada Logo
11:20 - 17:24
SYD
-
SAN
25h 04m1 stop
$1,360Air Canada
Sun, 1 Feb - Tue, 10 Feb
Air Canada Logo
12:45 - 09:35
SAN
-
SYD
25h 50m1 stop
Air Canada Logo
11:20 - 17:24
SYD
-
SAN
25h 04m1 stop
$1,369Air Canada
Tue, 10 Feb - Tue, 24 Feb
Multiple Airlines Logo
18:05 - 17:40
SAN
-
SYD
28h 35m2 stops
Multiple Airlines Logo
11:20 - 12:03
SYD
-
SAN
19h 43m1 stop
$1,389Multiple Airlines
Tue, 10 Feb - Tue, 24 Feb
Air Canada Logo
18:05 - 09:35
SAN
-
SYD
20h 30m1 stop
Air Canada Logo
08:30 - 12:03
SYD
-
SAN
22h 33m2 stops
$1,392Air Canada
Tue, 10 Feb - Tue, 24 Feb
Air Canada Logo
12:45 - 14:40
SAN
-
SYD
30h 55m2 stops
Air Canada Logo
11:20 - 17:24
SYD
-
SAN
25h 04m1 stop
$1,398Air Canada
Tue, 20 Jan - Tue, 10 Feb
Air Canada Logo
12:45 - 14:40
SAN
-
SYD
30h 55m2 stops
Air Canada Logo
11:20 - 17:24
SYD
-
SAN
25h 04m1 stop
$1,399Air Canada
Mon, 2 Feb - Tue, 10 Feb
Air Canada Logo
18:05 - 18:05
SAN
-
SYD
29h 00m2 stops
Air Canada Logo
11:20 - 17:24
SYD
-
SAN
25h 04m1 stop
$1,402Air Canada
Fri, 13 Feb - Fri, 27 Feb
Air Canada Logo
12:45 - 16:40
SAN
-
SYD
32h 55m2 stops
Air Canada Logo
09:00 - 17:24
SYD
-
SAN
27h 24m2 stops
$1,420Air Canada
Tue, 20 Jan - Tue, 10 Feb
Air Canada Logo
18:05 - 18:05
SAN
-
SYD
29h 00m2 stops
Air Canada Logo
09:00 - 17:24
SYD
-
SAN
27h 24m2 stops
$1,425Air Canada
Fri, 13 Feb - Fri, 27 Feb
Multiple Airlines Logo
12:45 - 10:40
SAN
-
SYD
28h 55m2 stops
Multiple Airlines Logo
20:10 - 12:02
SYD
-
SAN
32h 52m2 stops
$1,426Multiple Airlines
Sun, 10 May - Sat, 23 May

Air Canada flights from San Diego to Sydney

Our best Air Canada deals on San Diego to Sydney flight tickets
Air Canada
10 Feb
SAN18:05San Diego
20h 30m
1 stop
SYD09:35Sydney Kingsford Smith
24 Feb
SYD11:20Sydney Kingsford Smith
19h 43m
1 stop
SAN12:03San Diego
$1,369
Find similar
Air Canada
10 Feb
SAN18:05San Diego
20h 30m
1 stop
SYD09:35Sydney Kingsford Smith
24 Feb
SYD08:30Sydney Kingsford Smith
22h 33m
2 stops
SAN12:03San Diego
$1,392
Find similar
Air Canada
2 Feb
SAN12:45San Diego
30h 55m
2 stops
SYD14:40Sydney Kingsford Smith
10 Feb
SYD11:20Sydney Kingsford Smith
25h 04m
1 stop
SAN17:24San Diego
$1,399
Find similar

American Airlines flights from San Diego to Sydney

Our best American Airlines deals on San Diego to Sydney flight tickets
American Airlines
26 Jan
SAN10:50San Diego
27h 40m
2 stops
SYD09:30Sydney Kingsford Smith
10 Feb
SYD14:05Sydney Kingsford Smith
20h 52m
1 stop
SAN15:57San Diego
$1,660
Find similar
American Airlines
16 Mar
SAN14:18San Diego
22h 37m
1 stop
SYD06:55Sydney Kingsford Smith
27 Mar
SYD13:05Sydney Kingsford Smith
27h 18m
1 stop
SAN22:23San Diego
$1,724
Find similar
American Airlines
16 Mar
SAN16:45San Diego
22h 15m
2 stops
SYD09:00Sydney Kingsford Smith
27 Mar
SYD13:05Sydney Kingsford Smith
20h 44m
1 stop
SAN15:49San Diego
$1,730
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 6 December 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 1/2

18:05-14:40

2 stops25h 35m

Sydney Kingsford Smith

Tue 10/2

11:20-17:24

1 stop25h 04m

$1,360

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/2

12:45-09:35

1 stop25h 50m

Sydney Kingsford Smith

Tue 24/2

11:20-17:24

1 stop25h 04m

$1,369

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/2

18:05-17:40

2 stops28h 35m

Sydney Kingsford Smith

Tue 24/2

11:20-12:03

1 stop19h 43m

$1,389

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/2

18:05-09:35

1 stop20h 30m

Sydney Kingsford Smith

Tue 24/2

08:30-12:03

2 stops22h 33m

$1,392

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 20/1

12:45-14:40

2 stops30h 55m

Sydney Kingsford Smith

Tue 10/2

11:20-17:24

1 stop25h 04m

$1,398

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 2/2

12:45-14:40

2 stops30h 55m

Sydney Kingsford Smith

Tue 10/2

11:20-17:24

1 stop25h 04m

$1,399

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 13/2

18:05-18:05

2 stops29h 00m

Sydney Kingsford Smith

Fri 27/2

11:20-17:24

1 stop25h 04m

$1,402

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 20/1

12:45-16:40

2 stops32h 55m

Sydney Kingsford Smith

Tue 10/2

09:00-17:24

2 stops27h 24m

$1,420

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 13/2

18:05-18:05

2 stops29h 00m

Sydney Kingsford Smith

Fri 27/2

09:00-17:24

2 stops27h 24m

$1,425

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 10/5

12:45-10:40

2 stops28h 55m

Sydney Kingsford Smith

Sat 23/5

20:10-12:02

2 stops32h 52m

$1,426

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $1,428. 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 $1,432.

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 $1,678. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,906.

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 $1,645. 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 $1,801 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 $1,639 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 $1,405 on momondo.

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

You could potentially save up to 61% 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 December 2025, prices for San Diego to Sydney flights are approximately 42% 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 20m

Direct flights

None
The fastest flight from San Diego to Sydney takes 19h 20m
There are no direct flights from San Diego to Sydney. There are no popular flight routes from San Diego to Sydney.
Search flight deals

  • 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 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.

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 $1,096Free cancellationRating
7.4
9,072 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
Katoomba
Penrith
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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