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Cheap flights from San Diego to Sydney from $624

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 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 - 4:15 pm
SYD
-
SAN
23h 55m
1 stop
$1,008Air Canada
Sun, Jun 21 - Tue, Jul 7
Multiple Airlines Logo
3:43 pm - 6:25 am
SAN
-
SYD
21h 42m
1 stop
Multiple Airlines Logo
9:25 pm - 10:59 pm
SYD
-
SAN
18h 34m
1 stop
$1,019Multiple Airlines
Sun, Sep 6 - Sun, Sep 20
Multiple Airlines Logo
4:55 pm - 2:40 pm
SAN
-
SYD
28h 45m
2 stops
Multiple Airlines Logo
9:20 am - 4:15 pm
SYD
-
SAN
23h 55m
1 stop
$1,024Multiple Airlines
Sun, Jun 21 - Tue, Jul 7
Multiple Airlines Logo
4:14 pm - 6:25 am
SAN
-
SYD
21h 11m
1 stop
Multiple Airlines Logo
9:25 pm - 9:35 am
SYD
-
SAN
29h 10m
1 stop
$1,025Multiple Airlines
Tue, Jun 23 - Tue, Jun 30
Multiple Airlines Logo
11:04 am - 6:25 am
SAN
-
SYD
26h 21m
1 stop
Multiple Airlines Logo
9:25 pm - 9:35 am
SYD
-
SAN
29h 10m
1 stop
$1,026Multiple Airlines
Tue, Jul 7 - Tue, Jul 14
Multiple Airlines Logo
2:24 pm - 7:10 pm
SAN
-
SYD
35h 46m
2 stops
Multiple Airlines Logo
11:45 am - 4:12 pm
SYD
-
SAN
45h 27m
2 stops
$1,052Multiple Airlines
Sat, Aug 22 - Wed, Sep 9
Air Canada Logo
7:05 am - 8:35 am
SAN
-
SYD
31h 30m
1 stop
Air Canada Logo
11:20 am - 1:04 pm
SYD
-
SAN
20h 44m
1 stop
$1,060Air Canada
Wed, Oct 28 - Wed, Nov 11
Multiple Airlines Logo
4:14 pm - 6:25 am
SAN
-
SYD
21h 11m
1 stop
Multiple Airlines Logo
9:25 pm - 9:35 am
SYD
-
SAN
29h 10m
1 stop
$1,070Multiple Airlines
Fri, Jul 3 - Sun, Aug 2
Multiple Airlines Logo
4:55 pm - 7:20 am
SAN
-
SYD
21h 25m
1 stop
Multiple Airlines Logo
9:20 am - 4:15 pm
SYD
-
SAN
23h 55m
1 stop
$1,077Multiple Airlines
Sun, Jun 21 - Mon, Jul 6
Air Canada Logo
7:05 am - 8:35 am
SAN
-
SYD
31h 30m
1 stop
Air Canada Logo
9:00 am - 1:04 pm
SYD
-
SAN
23h 04m
2 stops
$1,086Air Canada
Wed, Oct 28 - Wed, Nov 11

Air Canada flights from San Diego to Sydney

Our best Air Canada deals on San Diego to Sydney flight tickets
Air Canada
Jun 21
SAN4:55 pmSan Diego
21h 25m
1 stop
SYD7:20 amSydney Kingsford Smith
Jul 7
SYD9:20 amSydney Kingsford Smith
23h 55m
1 stop
SAN4:15 pmSan Diego
$1,008
Air Canada
Oct 28
SAN7:05 amSan Diego
31h 30m
1 stop
SYD8:35 amSydney Kingsford Smith
Nov 11
SYD11:20 amSydney Kingsford Smith
20h 44m
1 stop
SAN1:04 pmSan Diego
$1,060
Air Canada
May 31
SAN12:30 pmSan Diego
25h 50m
1 stop
SYD7:20 amSydney Kingsford Smith
Jun 15
SYD9:20 amSydney Kingsford Smith
19h 30m
1 stop
SAN11:50 amSan Diego
$1,082

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
Jun 21
SAN1:39 pmSan Diego
24h 21m
2 stops
SYD7:00 amSydney Kingsford Smith
Jul 7
SYD9:30 amSydney Kingsford Smith
23h 37m
2 stops
SAN4:07 pmSan Diego
$1,101
United Airlines
Sep 7
SAN11:20 amSan Diego
26h 35m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 21
SYD10:20 amSydney Kingsford Smith
20h 24m
1 stop
SAN1:44 pmSan Diego
$1,110
United Airlines
Sep 8
SAN5:00 pmSan Diego
20h 55m
2 stops
SYD6:55 amSydney Kingsford Smith
Sep 22
SYD9:30 amSydney Kingsford Smith
19h 48m
2 stops
SAN12:18 pmSan Diego
$1,115

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 May 28, 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 6/21

4:55 pm-7:20 am

1 stop21h 25m

Sydney Kingsford Smith

Tue 7/7

9:20 am-4:15 pm

1 stop23h 55m

$1,008
Quickest round-trip

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 9/6

3:43 pm-6:25 am

1 stop21h 42m

Sydney Kingsford Smith

Sun 9/20

9:25 pm-10:59 pm

1 stop18h 34m

$1,019

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 6/21

4:55 pm-2:40 pm

2 stops28h 45m

Sydney Kingsford Smith

Tue 7/7

9:20 am-4:15 pm

1 stop23h 55m

$1,024

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 6/23

4:14 pm-6:25 am

1 stop21h 11m

Sydney Kingsford Smith

Tue 6/30

9:25 pm-9:35 am

1 stop29h 10m

$1,025

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 7/7

11:04 am-6:25 am

1 stop26h 21m

Sydney Kingsford Smith

Tue 7/14

9:25 pm-9:35 am

1 stop29h 10m

$1,026

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 8/22

2:24 pm-7:10 pm

2 stops35h 46m

Sydney Kingsford Smith

Wed 9/9

11:45 am-4:12 pm

2 stops45h 27m

$1,052

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 10/28

7:05 am-8:35 am

1 stop31h 30m

Sydney Kingsford Smith

Wed 11/11

11:20 am-1:04 pm

1 stop20h 44m

$1,060

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 7/3

4:14 pm-6:25 am

1 stop21h 11m

Sydney Kingsford Smith

Sun 8/2

9:25 pm-9:35 am

1 stop29h 10m

$1,070

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 6/21

4:55 pm-7:20 am

1 stop21h 25m

Sydney Kingsford Smith

Mon 7/6

9:20 am-4:15 pm

1 stop23h 55m

$1,077

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 10/28

7:05 am-8:35 am

1 stop31h 30m

Sydney Kingsford Smith

Wed 11/11

9:00 am-1:04 pm

2 stops23h 04m

$1,086

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 May 2026, prices for San Diego to Sydney flights are approximately 8% 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 00m

Direct flights

None
The fastest flight from San Diego to Sydney takes 21h 00m
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 00m.

  • 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
11,096 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,645 reviews
Search American Airlines flights
United AirlinesPriceFrom $857Free CancellationRating
7.4
9,761 reviews
Search United Airlines flights
DeltaPriceFrom $949Free CancellationRating
7.9
8,421 reviews
Search Delta flights
Air New ZealandPriceFrom $1,042Free CancellationRating
8.0
648 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
Bondi Beach
Parramatta
Katoomba
Penrith
Wollongong
Leura
Randwick
Lithgow
Coogee
Manly
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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