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Cheap flights from San Diego to Sydney from $711

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 16/11. 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

Logo
08:36 - 15:40SAN-SYD
37h 04m1 stop
Logo
17:20 - 20:29SYD-SAN
21h 09m2 stops
$1,269
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Thu, 16 Oct - Wed, 22 Oct
Logo
08:36 - 15:40SAN-SYD
37h 04m1 stop
Logo
17:20 - 20:14SYD-SAN
20h 54m2 stops
$1,321
Find Deal
Thu, 16 Oct - Fri, 24 Oct
Air Canada Logo
12:45 - 22:25SAN-SYD
39h 40m2 stops
Air Canada Logo
11:20 - 12:03SYD-SAN
19h 43m1 stop
$1,372Air Canada
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
18:10 - 09:35SAN-SYD
20h 25m1 stop
Air Canada Logo
09:20 - 12:02SYD-SAN
19h 42m1 stop
$1,383Air Canada
Find Deal
Tue, 11 Nov - Tue, 5 May
Alaska Airlines Logo
18:48 - 19:45SAN-SYD
29h 57m2 stops
Alaska Airlines Logo
21:40 - 06:50SYD-SAN
26h 10m1 stop
$1,409Alaska Airlines
Find Deal
Sun, 9 Nov - Tue, 5 May
American Airlines Logo
16:20 - 08:05SAN-SYD
21h 45m2 stops
American Airlines Logo
11:20 - 18:24SYD-SAN
26h 04m2 stops
$1,413American Airlines
Find Deal
Sun, 19 Oct - Wed, 19 Nov
American Airlines Logo
12:40 - 07:30SAN-SYD
24h 50m2 stops
American Airlines Logo
10:10 - 15:30SYD-SAN
23h 20m2 stops
$1,415American Airlines
Find Deal
Sat, 18 Oct - Sat, 25 Oct
United Airlines Logo
20:50 - 09:05SAN-SYD
17h 15m1 stop
United Airlines Logo
09:30 - 12:36SYD-SAN
20h 06m2 stops
$1,419United Airlines
Find Deal
Thu, 5 Mar - Tue, 14 Apr
United Airlines Logo
06:15 - 09:05SAN-SYD
31h 50m2 stops
United Airlines Logo
11:20 - 23:58SYD-SAN
31h 38m1 stop
$1,446United Airlines
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Wed, 19 Nov - Sat, 29 Nov
Alaska Airlines Logo
14:30 - 19:45SAN-SYD
35h 15m2 stops
Alaska Airlines Logo
21:40 - 10:52SYD-SAN
31h 12m2 stops
$1,616Alaska Airlines
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Wed, 15 Oct - Sat, 18 Oct

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
20 Sept
SAN16:11San Diego
21h 49m
2 stops
SYD07:00Sydney Kingsford Smith
3 Oct
SYD10:20Sydney Kingsford Smith
30h 21m
2 stops
SAN23:41San Diego
$1,323
Find similar
United Airlines
20 Sept
SAN12:52San Diego
25h 03m
2 stops
SYD06:55Sydney Kingsford Smith
3 Oct
SYD09:30Sydney Kingsford Smith
17h 57m
1 stop
SAN10:27San Diego
$1,327
Find similar
United Airlines
20 Sept
SAN19:21San Diego
18h 34m
1 stop
SYD06:55Sydney Kingsford Smith
3 Oct
SYD09:30Sydney Kingsford Smith
17h 57m
1 stop
SAN10:27San Diego
$1,333
Find similar

American Airlines flights from San Diego to Sydney

Our best American Airlines deals on San Diego to Sydney flight tickets
American Airlines
19 Oct
SAN16:20San Diego
21h 45m
2 stops
SYD08:05Sydney Kingsford Smith
19 Nov
SYD11:20Sydney Kingsford Smith
26h 04m
2 stops
SAN18:24San Diego
$1,413
Find similar
American Airlines
18 Oct
SAN12:40San Diego
24h 50m
2 stops
SYD07:30Sydney Kingsford Smith
25 Oct
SYD10:10Sydney Kingsford Smith
23h 20m
2 stops
SAN15:30San Diego
$1,415
Find similar
American Airlines
14 Dec
SAN12:50San Diego
23h 35m
2 stops
SYD07:25Sydney Kingsford Smith
28 Dec
SYD17:45Sydney Kingsford Smith
22h 55m
2 stops
SAN21:40San Diego
$1,416
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 15 September 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

Thu 16/10

08:36-15:40

1 stop37h 04m

Sydney Kingsford Smith

Wed 22/10

17:20-20:29

2 stops21h 09m

$1,269

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 16/10

08:36-15:40

1 stop37h 04m

Sydney Kingsford Smith

Fri 24/10

17:20-20:14

2 stops20h 54m

$1,321

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 29/10

12:45-22:25

2 stops39h 40m

Sydney Kingsford Smith

Wed 5/11

11:20-12:03

1 stop19h 43m

$1,372

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 11/11

18:10-09:35

1 stop20h 25m

Sydney Kingsford Smith

Tue 5/5

09:20-12:02

1 stop19h 42m

$1,383

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 9/11

18:48-19:45

2 stops29h 57m

Sydney Kingsford Smith

Tue 5/5

21:40-06:50

1 stop26h 10m

$1,409

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 19/10

16:20-08:05

2 stops21h 45m

Sydney Kingsford Smith

Wed 19/11

11:20-18:24

2 stops26h 04m

$1,413

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 18/10

12:40-07:30

2 stops24h 50m

Sydney Kingsford Smith

Sat 25/10

10:10-15:30

2 stops23h 20m

$1,415

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 5/3

20:50-09:05

1 stop17h 15m

Sydney Kingsford Smith

Tue 14/4

09:30-12:36

2 stops20h 06m

$1,419

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 19/11

06:15-09:05

2 stops31h 50m

Sydney Kingsford Smith

Sat 29/11

11:20-23:58

1 stop31h 38m

$1,446

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 15/10

14:30-19:45

2 stops35h 15m

Sydney Kingsford Smith

Sat 18/10

21:40-10:52

2 stops31h 12m

$1,616

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

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 $1,424. 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 $1,470.

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 $1,676. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,904.

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 $1,643. 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 $1,800 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 $1,646 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 $1,427 on momondo.

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

You could potentially save up to 40% 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 September 2025, prices for San Diego to Sydney flights are approximately 13% 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 15m, 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 $1,095Free cancellationRating
7.4
8,929 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
Randwick
Cronulla
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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