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Cheap flights from San Diego to Sydney from $612

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 10/17. 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.
Air Canada Logo
12:35 pm - 10:40 am
SAN
-
SYD
29h 05m
2 stops
Air Canada Logo
9:20 am - 8:58 pm
SYD
-
SAN
28h 38m
1 stop
$1,134Air Canada
Mon, Aug 3 - Tue, Aug 18
Alaska Airlines Logo
5:16 pm - 6:50 pm
SAN
-
SYD
32h 34m
1 stop
Alaska Airlines Logo
8:45 pm - 9:07 pm
SYD
-
SAN
17h 22m
1 stop
$1,140Alaska Airlines
Tue, Jul 28 - Tue, Aug 4
Multiple Airlines Logo
5:00 pm - 10:40 am
SAN
-
SYD
24h 40m
2 stops
Multiple Airlines Logo
6:00 am - 11:53 am
SYD
-
SAN
22h 53m
2 stops
$1,143Multiple Airlines
Mon, Aug 3 - Tue, Aug 18
Multiple Airlines Logo
9:27 pm - 6:25 am
SAN
-
SYD
39h 58m
1 stop
Multiple Airlines Logo
9:25 pm - 7:00 pm
SYD
-
SAN
38h 35m
1 stop
$1,144Multiple Airlines
Mon, Aug 3 - Tue, Aug 18
Air New Zealand Logo
8:32 pm - 7:00 am
SAN
-
SYD
17h 28m
1 stop
Air New Zealand Logo
9:30 am - 10:08 am
SYD
-
SAN
17h 38m
1 stop
$1,145Air New Zealand
Mon, Jul 6 - Tue, Jul 21
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
$1,146Multiple Airlines
Sun, Jun 21 - Sun, Jul 12
Air New Zealand Logo
6:27 pm - 6:55 am
SAN
-
SYD
19h 28m
1 stop
Air New Zealand Logo
9:30 am - 10:08 am
SYD
-
SAN
17h 38m
1 stop
$1,148Air New Zealand
Tue, Jul 28 - Tue, Aug 4
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
$1,150Multiple Airlines
Tue, Jul 21 - Sun, Jul 26
United Airlines Logo
4:09 pm - 7:00 am
SAN
-
SYD
21h 51m
2 stops
United Airlines Logo
9:30 am - 12:13 pm
SYD
-
SAN
19h 43m
2 stops
$1,151United Airlines
Mon, Aug 3 - Tue, Aug 18
United Airlines Logo
8:32 pm - 7:00 am
SAN
-
SYD
17h 28m
1 stop
United Airlines Logo
9:30 am - 3:54 pm
SYD
-
SAN
23h 24m
2 stops
$1,152United Airlines
Mon, Aug 3 - Tue, Aug 18

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Alaska Airlines flights from San Diego to Sydney

Our best Alaska Airlines deals on San Diego to Sydney flight tickets
Alaska Airlines
Jul 28
SAN5:16 pmSan Diego
32h 34m
1 stop
SYD6:50 pmSydney Kingsford Smith
Aug 4
SYD8:45 pmSydney Kingsford Smith
17h 22m
1 stop
SAN9:07 pmSan Diego
$1,140
Alaska Airlines
Jul 21
SAN9:07 amSan Diego
40h 43m
1 stop
SYD6:50 pmSydney Kingsford Smith
Jul 26
SYD8:45 pmSydney Kingsford Smith
17h 22m
1 stop
SAN9:07 pmSan Diego
$1,156
Alaska Airlines
Jun 23
SAN5:16 pmSan Diego
32h 34m
1 stop
SYD6:50 pmSydney Kingsford Smith
Jun 30
SYD8:45 pmSydney Kingsford Smith
36h 16m
1 stop
SAN4:01 pmSan Diego
$7,431

Air New Zealand flights from San Diego to Sydney

Our best Air New Zealand deals on San Diego to Sydney flight tickets
Air New Zealand
Jul 6
SAN8:32 pmSan Diego
17h 28m
1 stop
SYD7:00 amSydney Kingsford Smith
Jul 21
SYD9:30 amSydney Kingsford Smith
17h 38m
1 stop
SAN10:08 amSan Diego
$1,145
Air New Zealand
Jul 28
SAN6:27 pmSan Diego
19h 28m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 4
SYD9:30 amSydney Kingsford Smith
17h 38m
1 stop
SAN10:08 amSan Diego
$1,148
Air New Zealand
Jul 6
SAN8:32 pmSan Diego
17h 28m
1 stop
SYD7:00 amSydney Kingsford Smith
Jul 21
SYD9:30 amSydney Kingsford Smith
23h 37m
2 stops
SAN4:07 pmSan Diego
$1,161

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 15, 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

Mon 8/3

12:35 pm-10:40 am

2 stops29h 05m

Sydney Kingsford Smith

Tue 8/18

9:20 am-8:58 pm

1 stop28h 38m

$1,134

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 7/28

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Tue 8/4

8:45 pm-9:07 pm

1 stop17h 22m

$1,140

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/3

5:00 pm-10:40 am

2 stops24h 40m

Sydney Kingsford Smith

Tue 8/18

6:00 am-11:53 am

2 stops22h 53m

$1,143

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/3

9:27 pm-6:25 am

1 stop39h 58m

Sydney Kingsford Smith

Tue 8/18

9:25 pm-7:00 pm

1 stop38h 35m

$1,144
Quickest round-trip

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 7/6

8:32 pm-7:00 am

1 stop17h 28m

Sydney Kingsford Smith

Tue 7/21

9:30 am-10:08 am

1 stop17h 38m

$1,145

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 6/21

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Sun 7/12

8:45 pm-6:32 am

1 stop26h 47m

$1,146

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 7/28

6:27 pm-6:55 am

1 stop19h 28m

Sydney Kingsford Smith

Tue 8/4

9:30 am-10:08 am

1 stop17h 38m

$1,148

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 7/21

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

Sun 7/26

8:45 pm-6:32 am

1 stop26h 47m

$1,150

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/3

4:09 pm-7:00 am

2 stops21h 51m

Sydney Kingsford Smith

Tue 8/18

9:30 am-12:13 pm

2 stops19h 43m

$1,151

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/3

8:32 pm-7:00 am

1 stop17h 28m

Sydney Kingsford Smith

Tue 8/18

9:30 am-3:54 pm

2 stops23h 24m

$1,152

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 November is also very affordable. Most momondo users find prices during this month for around $959.

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 $1,136 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 $823 on momondo.

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

23h 30m

Direct flights

None
The fastest flight from San Diego to Sydney takes 23h 30m
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 23h 30m.

  • 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
11,193 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights
United AirlinesPriceFrom $857Free CancellationRating
7.4
9,826 reviews
Search United Airlines flights
DeltaPriceFrom $949Free CancellationRating
7.9
8,397 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
Katoomba
Bondi Beach
Penrith
Wollongong
Randwick
Leura
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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