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Cheap flights from San Diego to Sydney from $699

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 25/11. 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

Air Canada Logo
14:20 - 07:20SAN-SYD
24h 00m1 stop
Air Canada Logo
09:20 - 13:20SYD-SAN
21h 00m1 stop
$1,288Air Canada
Find Deal
Sat, 13 Sep - Mon, 29 Sep
Air Canada Logo
14:20 - 07:20SAN-SYD
24h 00m1 stop
Air Canada Logo
09:20 - 13:20SYD-SAN
21h 00m1 stop
$1,289Air Canada
Find Deal
Mon, 8 Sep - Wed, 17 Sep
Logo
14:20 - 07:20SAN-SYD
24h 00m1 stop
Logo
06:00 - 13:20SYD-SAN
24h 20m2 stops
$1,302
Find Deal
Sat, 13 Sep - Mon, 29 Sep
Logo
14:20 - 10:20SAN-SYD
27h 00m2 stops
Logo
09:20 - 13:20SYD-SAN
21h 00m1 stop
$1,330
Find Deal
Mon, 8 Sep - Wed, 17 Sep
Alaska Airlines Logo
18:59 - 19:45SAN-SYD
30h 46m2 stops
Alaska Airlines Logo
21:40 - 08:23SYD-SAN
28h 43m2 stops
$1,448Alaska Airlines
Find Deal
Fri, 17 Oct - Sat, 1 Nov
American Airlines Logo
16:40 - 07:05SAN-SYD
21h 25m2 stops
American Airlines Logo
09:10 - 19:24SYD-SAN
27h 14m2 stops
$1,452American Airlines
Find Deal
Mon, 8 Sep - Wed, 17 Sep
American Airlines Logo
16:25 - 09:00SAN-SYD
21h 35m2 stops
American Airlines Logo
14:20 - 23:56SYD-SAN
28h 36m1 stop
$1,454American Airlines
Find Deal
Mon, 10 Nov - Fri, 21 Nov
United Airlines Logo
16:04 - 09:15SAN-SYD
22h 11m1 stop
United Airlines Logo
12:10 - 10:04SYD-SAN
16h 54m1 stop
$1,458United Airlines
Find Deal
Sat, 7 Feb - Tue, 24 Feb
United Airlines Logo
13:59 - 07:55SAN-SYD
23h 56m1 stop
United Airlines Logo
11:20 - 10:21SYD-SAN
18h 01m1 stop
$1,471United Airlines
Find Deal
Sun, 19 Oct - Wed, 19 Nov
Alaska Airlines Logo
17:55 - 19:45SAN-SYD
31h 50m1 stop
Alaska Airlines Logo
21:40 - 07:21SYD-SAN
27h 41m2 stops
$1,474Alaska Airlines
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Wed, 15 Oct - Fri, 31 Oct

Air Canada flights from San Diego to Sydney

Our best Air Canada deals on San Diego to Sydney flight tickets
Air Canada
13 Sept
SAN14:20San Diego
24h 00m
1 stop
SYD07:20Sydney Kingsford Smith
29 Sept
SYD09:20Sydney Kingsford Smith
21h 00m
1 stop
SAN13:20San Diego
$1,288
Find similar
Air Canada
8 Sept
SAN14:20San Diego
24h 00m
1 stop
SYD07:20Sydney Kingsford Smith
17 Sept
SYD09:20Sydney Kingsford Smith
21h 00m
1 stop
SAN13:20San Diego
$1,289
Find similar
Air Canada
19 Oct
SAN16:40San Diego
26h 00m
2 stops
SYD12:40Sydney Kingsford Smith
19 Nov
SYD11:20Sydney Kingsford Smith
25h 04m
1 stop
SAN17:24San Diego
$1,317
Find similar

American Airlines flights from San Diego to Sydney

Our best American Airlines deals on San Diego to Sydney flight tickets
American Airlines
8 Sept
SAN16:40San Diego
21h 25m
2 stops
SYD07:05Sydney Kingsford Smith
17 Sept
SYD09:10Sydney Kingsford Smith
27h 14m
2 stops
SAN19:24San Diego
$1,452
Find similar
American Airlines
29 Aug
SAN12:50San Diego
25h 15m
2 stops
SYD07:05Sydney Kingsford Smith
9 Sept
SYD09:10Sydney Kingsford Smith
27h 14m
2 stops
SAN19:24San Diego
$1,454
Find similar
American Airlines
14 Dec
SAN13:28San Diego
21h 42m
2 stops
SYD06:10Sydney Kingsford Smith
28 Dec
SYD14:20Sydney Kingsford Smith
22h 24m
1 stop
SAN17:44San Diego
$1,455
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 23 August 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

Sat 13/9

14:20-07:20

1 stop24h 00m

Sydney Kingsford Smith

Mon 29/9

09:20-13:20

1 stop21h 00m

$1,288

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/9

14:20-07:20

1 stop24h 00m

Sydney Kingsford Smith

Wed 17/9

09:20-13:20

1 stop21h 00m

$1,289

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 13/9

14:20-07:20

1 stop24h 00m

Sydney Kingsford Smith

Mon 29/9

06:00-13:20

2 stops24h 20m

$1,302

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/9

14:20-10:20

2 stops27h 00m

Sydney Kingsford Smith

Wed 17/9

09:20-13:20

1 stop21h 00m

$1,330

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 17/10

18:59-19:45

2 stops30h 46m

Sydney Kingsford Smith

Sat 1/11

21:40-08:23

2 stops28h 43m

$1,448

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/9

16:40-07:05

2 stops21h 25m

Sydney Kingsford Smith

Wed 17/9

09:10-19:24

2 stops27h 14m

$1,452

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 10/11

16:25-09:00

2 stops21h 35m

Sydney Kingsford Smith

Fri 21/11

14:20-23:56

1 stop28h 36m

$1,454

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 7/2

16:04-09:15

1 stop22h 11m

Sydney Kingsford Smith

Tue 24/2

12:10-10:04

1 stop16h 54m

$1,458

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 19/10

13:59-07:55

1 stop23h 56m

Sydney Kingsford Smith

Wed 19/11

11:20-10:21

1 stop18h 01m

$1,471

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 15/10

17:55-19:45

1 stop31h 50m

Sydney Kingsford Smith

Fri 31/10

21:40-07:21

2 stops27h 41m

$1,474

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 $1,474. 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 $1,531.

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 $1,728. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,963.

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 $1,694. 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 $1,855 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 $1,713 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 $1,477 on momondo.

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

You could potentially save up to 39% 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 August 2025, prices for San Diego to Sydney flights are approximately 26% 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 19h 45m, 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 $1,129Free cancellationRating
7.4
8,935 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
Manly
Leura
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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