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Cheap flights from San Diego to Sydney from $544

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 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Diego to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:57 pm - 6:50 pm
SAN
-
SYD
33h 53m
1 stop
Multiple Airlines Logo
8:45 pm - 6:52 am
SYD
-
SAN
27h 07m
1 stop
$1,023Multiple Airlines
Sun, Aug 9 - Sun, Aug 23
Multiple Airlines Logo
3:57 pm - 6:50 pm
SAN
-
SYD
33h 53m
1 stop
Multiple Airlines Logo
8:45 pm - 6:52 am
SYD
-
SAN
27h 07m
1 stop
$1,026Multiple Airlines
Sun, Aug 9 - Sun, Aug 23
Multiple Airlines Logo
4:45 pm - 8:15 pm
SAN
-
SYD
32h 30m
2 stops
Multiple Airlines Logo
12:25 pm - 1:04 pm
SYD
-
SAN
43h 39m
2 stops
$1,049Multiple Airlines
Tue, Nov 17 - Tue, Dec 8
Multiple Airlines Logo
9:07 am - 6:50 pm
SAN
-
SYD
40h 43m
1 stop
Multiple Airlines Logo
8:45 pm - 6:52 am
SYD
-
SAN
27h 07m
1 stop
$1,067Multiple Airlines
Sun, Aug 9 - Sun, Aug 23
Multiple Airlines Logo
11:00 am - 7:45 pm
SAN
-
SYD
37h 45m
1 stop
Multiple Airlines Logo
9:40 pm - 8:25 pm
SYD
-
SAN
17h 45m
1 stop
$1,075Multiple Airlines
Sun, Nov 15 - Sun, Feb 7
Multiple Airlines Logo
9:07 am - 6:50 pm
SAN
-
SYD
40h 43m
1 stop
Multiple Airlines Logo
8:45 pm - 6:32 am
SYD
-
SAN
26h 47m
1 stop
$1,080Multiple Airlines
Sun, Aug 9 - Sun, Aug 16
Multiple Airlines Logo
5:16 pm - 6:50 pm
SAN
-
SYD
32h 34m
1 stop
Multiple Airlines Logo
8:45 pm - 6:32 am
SYD
-
SAN
26h 47m
1 stop
$1,081Multiple Airlines
Tue, Aug 11 - Sun, Aug 16
Multiple Airlines Logo
5:16 pm - 6:50 pm
SAN
-
SYD
32h 34m
1 stop
Multiple Airlines Logo
8:45 pm - 6:32 am
SYD
-
SAN
26h 47m
1 stop
$1,083Multiple Airlines
Tue, Aug 11 - Sun, Aug 16
Multiple Airlines Logo
5:16 pm - 6:50 pm
SAN
-
SYD
32h 34m
1 stop
Multiple Airlines Logo
8:45 pm - 6:32 am
SYD
-
SAN
26h 47m
1 stop
$1,088Multiple Airlines
Tue, Aug 11 - Sun, Aug 16
Multiple Airlines Logo
5:16 pm - 6:50 pm
SAN
-
SYD
32h 34m
1 stop
Multiple Airlines Logo
8:45 pm - 6:32 am
SYD
-
SAN
26h 47m
1 stop
$1,089Multiple Airlines
Sun, Aug 9 - Sun, Aug 16

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Qantas Airways flights from San Diego to Sydney

Our best Qantas Airways deals on San Diego to Sydney flight tickets
Qantas Airways
Oct 28
SAN11:53 amSan Diego
24h 32m
1 stop
SYD6:25 amSydney Kingsford Smith
Nov 16
SYD7:15 pmSydney Kingsford Smith
39h 39m
2 stops
SAN3:54 pmSan Diego
$1,167
Qantas Airways
Jul 18
SAN12:46 pmSan Diego
25h 44m
2 stops
SYD7:30 amSydney Kingsford Smith
Jul 30
SYD12:00 pmSydney Kingsford Smith
24h 20m
1 stop
SAN7:20 pmSan Diego
$1,582

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
Aug 9
SAN4:09 pmSan Diego
21h 46m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 23
SYD9:30 amSydney Kingsford Smith
21h 14m
2 stops
SAN1:44 pmSan Diego
$1,177
United Airlines
Aug 9
SAN8:32 pmSan Diego
17h 28m
1 stop
SYD7:00 amSydney Kingsford Smith
Aug 23
SYD10:20 amSydney Kingsford Smith
26h 35m
2 stops
SAN7:55 pmSan Diego
$1,179
United Airlines
Aug 12
SAN5:00 pmSan Diego
20h 55m
2 stops
SYD6:55 amSydney Kingsford Smith
Aug 19
SYD9:30 amSydney Kingsford Smith
19h 05m
1 stop
SAN11:35 amSan Diego
$1,186

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated July 17, 2026.
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

Cheapest round-trip

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/9

3:57 pm-6:50 pm

1 stop33h 53m

Sydney Kingsford Smith

Sun 8/23

8:45 pm-6:52 am

1 stop27h 07m

$1,023

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/9

3:57 pm-6:50 pm

1 stop33h 53m

Sydney Kingsford Smith

Sun 8/23

8:45 pm-6:52 am

1 stop27h 07m

$1,026

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 11/17

4:45 pm-8:15 pm

2 stops32h 30m

Sydney Kingsford Smith

Tue 12/8

12:25 pm-1:04 pm

2 stops43h 39m

$1,049

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/9

9:07 am-6:50 pm

1 stop40h 43m

Sydney Kingsford Smith

Sun 8/23

8:45 pm-6:52 am

1 stop27h 07m

$1,067
Quickest round-trip

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 11/15

11:00 am-7:45 pm

1 stop37h 45m

Sydney Kingsford Smith

Sun 2/7

9:40 pm-8:25 pm

1 stop17h 45m

$1,075

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/9

9:07 am-6:50 pm

1 stop40h 43m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:32 am

1 stop26h 47m

$1,080

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 8/11

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:32 am

1 stop26h 47m

$1,081

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 8/11

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:32 am

1 stop26h 47m

$1,083

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 8/11

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:32 am

1 stop26h 47m

$1,088

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 8/9

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Sun 8/16

8:45 pm-6:32 am

1 stop26h 47m

$1,089

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

In general, April is the cheapest month to fly from San Diego to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $820. If you are unable to visit Sydney during the month of April, then departing from San Diego during the month August is also very affordable. Most momondo users find prices during this month for around $952.

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 $1,140 when searching weeks out. 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 $848 on momondo.

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

You could potentially save up to 6% 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 25% 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 round-trip 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

21h 20m

Direct flights

None
The fastest flight from San Diego to Sydney takes 21h 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

Frequently asked questions about flying from San Diego to Sydney

  • How far is San Diego to Sydney Kingsford Smith by plane?

    Sydney Kingsford Smith is 7507.7 mi away from San Diego. In terms of flight time, this usually takes a little over 21h 20m.

  • 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 refresh daily.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable 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
Air CanadaPriceFrom $758Free CancellationRating
7.1
11,347 reviews
Search Air Canada flights
United AirlinesPriceFrom $834Free CancellationRating
7.4
9,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,815 reviews
Search American Airlines flights
DeltaPriceFrom $949Free CancellationRating
7.8
8,472 reviews
Search Delta flights
Air New ZealandPriceFrom $1,075Free CancellationRating
8.0
654 reviews
Search Air New Zealand flights

Traveling to a place near Sydney?

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

Why use momondo?

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

It is quick and easy to find San Diego to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

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

Yes. momondo enables you to select and highlight flights to Sydney from San Diego with this policy.

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?

Yes. momondo can track prices for San Diego to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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