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Cheap flights from San Diego to Sydney from $623

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 8/25. 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

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Find the cheapest flights from San Diego to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:55 pm - 7:20 am
SAN
-
SYD
21h 25m
1 stop
Air Canada Logo
9:20 am - 11:53 am
SYD
-
SAN
19h 33m
1 stop
$1,028Air Canada
Sun, Jun 21 - Tue, Jul 7
Air Canada Logo
7:05 am - 9:35 am
SAN
-
SYD
31h 30m
1 stop
Air Canada Logo
11:20 am - 1:04 pm
SYD
-
SAN
20h 44m
1 stop
$1,041Air Canada
Wed, Nov 11 - Wed, Nov 18
Air Canada Logo
2:10 pm - 8:35 am
SAN
-
SYD
24h 25m
1 stop
Air Canada Logo
11:20 am - 1:04 pm
SYD
-
SAN
20h 44m
1 stop
$1,060Air Canada
Tue, Oct 27 - Tue, Nov 3
Air Canada Logo
4:55 pm - 7:20 am
SAN
-
SYD
21h 25m
1 stop
Air Canada Logo
7:30 am - 4:15 pm
SYD
-
SAN
25h 45m
2 stops
$1,068Air Canada
Sun, Jun 21 - Tue, Jul 7
Air Canada Logo
7:05 am - 9:35 am
SAN
-
SYD
31h 30m
1 stop
Air Canada Logo
9:00 am - 1:04 pm
SYD
-
SAN
23h 04m
2 stops
$1,082Air Canada
Wed, Nov 11 - Wed, Nov 18
Air Canada Logo
7:05 am - 8:35 am
SAN
-
SYD
31h 30m
1 stop
Air Canada Logo
9:00 am - 5:59 pm
SYD
-
SAN
27h 59m
2 stops
$1,084Air Canada
Tue, Oct 27 - Tue, Nov 3
Multiple Airlines Logo
4:55 pm - 11:40 am
SAN
-
SYD
25h 45m
2 stops
Multiple Airlines Logo
9:20 am - 4:12 pm
SYD
-
SAN
23h 52m
1 stop
$1,088Multiple Airlines
Mon, Sep 7 - Wed, Sep 16
Air Canada Logo
2:10 pm - 8:35 am
SAN
-
SYD
24h 25m
1 stop
Air Canada Logo
11:20 am - 1:04 pm
SYD
-
SAN
20h 44m
1 stop
$1,098Air Canada
Tue, Oct 27 - Sat, Nov 7
Air Canada Logo
7:05 am - 9:35 am
SAN
-
SYD
31h 30m
1 stop
Air Canada Logo
11:20 am - 1:04 pm
SYD
-
SAN
20h 44m
1 stop
$1,099Air Canada
Sun, Nov 8 - Sun, Nov 15
American Airlines Logo
12:46 pm - 6:25 am
SAN
-
SYD
24h 39m
2 stops
American Airlines Logo
9:10 am - 3:39 pm
SYD
-
SAN
23h 29m
2 stops
$1,100American Airlines
Sun, Jun 21 - Tue, Jul 7

Alaska Airlines flights from San Diego to Sydney

Our best Alaska Airlines deals on San Diego to Sydney flight tickets
Alaska Airlines
Oct 13
SAN8:35 amSan Diego
40h 15m
1 stop
SYD6:50 pmSydney Kingsford Smith
Oct 20
SYD8:45 pmSydney Kingsford Smith
17h 54m
1 stop
SAN8:39 pmSan Diego
$1,127
Alaska Airlines
Jun 5
SAN5:19 pmSan Diego
32h 31m
1 stop
SYD6:50 pmSydney Kingsford Smith
Jun 9
SYD8:45 pmSydney Kingsford Smith
16h 57m
1 stop
SAN8:42 pmSan Diego
$1,177
Alaska Airlines
Jun 5
SAN5:19 pmSan Diego
32h 31m
1 stop
SYD6:50 pmSydney Kingsford Smith
Jun 12
SYD8:45 pmSydney Kingsford Smith
17h 22m
1 stop
SAN9:07 pmSan Diego
$1,258

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
Nov 10
SAN1:28 pmSan Diego
24h 47m
1 stop
SYD9:15 amSydney Kingsford Smith
Nov 16
SYD12:10 pmSydney Kingsford Smith
16h 48m
1 stop
SAN9:58 amSan Diego
$1,104
United Airlines
Oct 13
SAN2:24 pmSan Diego
23h 36m
1 stop
SYD8:00 amSydney Kingsford Smith
Oct 20
SYD11:20 amSydney Kingsford Smith
16h 38m
1 stop
SAN9:58 amSan Diego
$1,109
United Airlines
Jun 20
SAN8:32 pmSan Diego
41h 23m
2 stops
SYD6:55 amSydney Kingsford Smith
Jul 5
SYD9:30 amSydney Kingsford Smith
17h 38m
1 stop
SAN10:08 amSan Diego
$1,150

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 June 4, 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
Quickest round-trip

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 6/21

4:55 pm-7:20 am

1 stop21h 25m

Sydney Kingsford Smith

Tue 7/7

9:20 am-11:53 am

1 stop19h 33m

$1,028

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 11/11

7:05 am-9:35 am

1 stop31h 30m

Sydney Kingsford Smith

Wed 11/18

11:20 am-1:04 pm

1 stop20h 44m

$1,041

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/27

2:10 pm-8:35 am

1 stop24h 25m

Sydney Kingsford Smith

Tue 11/3

11:20 am-1:04 pm

1 stop20h 44m

$1,060

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 6/21

4:55 pm-7:20 am

1 stop21h 25m

Sydney Kingsford Smith

Tue 7/7

7:30 am-4:15 pm

2 stops25h 45m

$1,068

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 11/11

7:05 am-9:35 am

1 stop31h 30m

Sydney Kingsford Smith

Wed 11/18

9:00 am-1:04 pm

2 stops23h 04m

$1,082

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/27

7:05 am-8:35 am

1 stop31h 30m

Sydney Kingsford Smith

Tue 11/3

9:00 am-5:59 pm

2 stops27h 59m

$1,084

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 9/7

4:55 pm-11:40 am

2 stops25h 45m

Sydney Kingsford Smith

Wed 9/16

9:20 am-4:12 pm

1 stop23h 52m

$1,088

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 10/27

2:10 pm-8:35 am

1 stop24h 25m

Sydney Kingsford Smith

Sat 11/7

11:20 am-1:04 pm

1 stop20h 44m

$1,098

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 11/8

7:05 am-9:35 am

1 stop31h 30m

Sydney Kingsford Smith

Sun 11/15

11:20 am-1:04 pm

1 stop20h 44m

$1,099

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 6/21

12:46 pm-6:25 am

2 stops24h 39m

Sydney Kingsford Smith

Tue 7/7

9:10 am-3:39 pm

2 stops23h 29m

$1,100

Flights are sorted by cheapest round-trip 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?

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 $815. 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 $973.

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 $1,127 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 $717 on momondo.

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

You could potentially save up to 1% 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 June 2026, 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 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

18h 14m

Direct flights

None
The fastest flight from San Diego to Sydney takes 18h 14m
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 18h 14m.

  • 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
11,126 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
United AirlinesPriceFrom $857Free CancellationRating
7.4
9,774 reviews
Search United Airlines flights
DeltaPriceFrom $949Free CancellationRating
7.8
8,395 reviews
Search Delta flights
Air New ZealandPriceFrom $1,075Free CancellationRating
8.0
645 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
Katoomba
Penrith
Wollongong
Leura
Randwick
Lithgow
Manly
Coogee
Cronulla
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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