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Cheap flights from San Diego to Sydney from $514

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 9/12. 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
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
$1,021Multiple Airlines
월, 11월 2 - 수, 11월 18
Multiple Airlines Logo
3:57 pm - 6:50 pm
SAN
-
SYD
33h 53m
1 stop
Multiple Airlines Logo
8:45 pm - 6:32 am
SYD
-
SAN
26h 47m
1 stop
$1,048Multiple Airlines
일, 7월 26 - 일, 8월 9
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
일, 8월 9 - 일, 8월 16
Alaska Airlines Logo
5:16 pm - 6:50 pm
SAN
-
SYD
32h 34m
1 stop
Alaska Airlines Logo
8:45 pm - 4:01 pm
SYD
-
SAN
36h 16m
1 stop
$1,089Alaska Airlines
일, 8월 9 - 일, 8월 16
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
$1,095Multiple Airlines
일, 8월 9 - 일, 8월 23
Alaska Airlines Logo
8:35 am - 6:50 pm
SAN
-
SYD
40h 15m
1 stop
Alaska Airlines Logo
8:45 pm - 8:39 pm
SYD
-
SAN
17h 54m
1 stop
$1,101Alaska Airlines
화, 10월 13 - 화, 10월 20
Multiple Airlines Logo
8:35 am - 6:50 pm
SAN
-
SYD
40h 15m
1 stop
Multiple Airlines Logo
9:40 pm - 6:35 am
SYD
-
SAN
26h 55m
1 stop
$1,112Multiple Airlines
일, 10월 18 - 금, 10월 30
Alaska Airlines Logo
8:35 am - 6:50 pm
SAN
-
SYD
40h 15m
1 stop
Alaska Airlines Logo
8:45 pm - 8:39 pm
SYD
-
SAN
17h 54m
1 stop
$1,116Alaska Airlines
화, 10월 13 - 화, 10월 20
ANA Logo
12:42 pm - 8:15 pm
SAN
-
SYD
37h 33m
2 stops
ANA Logo
12:25 pm - 5:59 pm
SYD
-
SAN
24h 34m
2 stops
$1,128ANA
토, 10월 31 - 일, 11월 15
Multiple Airlines Logo
11:02 am - 7:45 pm
SAN
-
SYD
38h 43m
1 stop
Multiple Airlines Logo
9:40 pm - 8:08 pm
SYD
-
SAN
17h 28m
1 stop
$1,129Multiple Airlines
화, 10월 27 - 토, 11월 7

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United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
Jul 26
SAN6:15 amSan Diego
31h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 11
SYD10:20 amSydney Kingsford Smith
29h 27m
1 stop
SAN10:47 pmSan Diego
$1,177
United Airlines
Jul 26
SAN6:15 amSan Diego
31h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 9
SYD10:20 amSydney Kingsford Smith
26h 31m
2 stops
SAN7:51 pmSan Diego
$1,178
United Airlines
Aug 9
SAN8:32 pmSan Diego
17h 28m
1 stop
SYD7:00 amSydney Kingsford Smith
Aug 16
SYD10:20 amSydney Kingsford Smith
24h 06m
2 stops
SAN5:26 pmSan Diego
$1,190

Alaska Airlines flights from San Diego to Sydney

Our best Alaska Airlines deals on San Diego to Sydney flight tickets
Alaska Airlines
Aug 9
SAN5:16 pmSan Diego
32h 34m
1 stop
SYD6:50 pmSydney Kingsford Smith
Aug 16
SYD8:45 pmSydney Kingsford Smith
36h 16m
1 stop
SAN4:01 pmSan Diego
$1,089
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
$1,101
Alaska Airlines
Oct 13
SAN8:35 amSan Diego
40h 15m
1 stop
SYD6:50 pmSydney Kingsford Smith
Oct 22
SYD8:45 pmSydney Kingsford Smith
17h 54m
1 stop
SAN8:39 pmSan Diego
$1,112

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 7월 10, 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

월 11/2

4:45 pm-8:15 pm

2 stops32h 30m

Sydney Kingsford Smith

수 11/18

12:25 pm-1:04 pm

2 stops43h 39m

$1,021

San DiegoSydney

SAN - SYD

SANSYD

San Diego

일 7/26

3:57 pm-6:50 pm

1 stop33h 53m

Sydney Kingsford Smith

일 8/9

8:45 pm-6:32 am

1 stop26h 47m

$1,048

San DiegoSydney

SAN - SYD

SANSYD

San Diego

일 8/9

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

일 8/16

8:45 pm-6:32 am

1 stop26h 47m

$1,088

San DiegoSydney

SAN - SYD

SANSYD

San Diego

일 8/9

5:16 pm-6:50 pm

1 stop32h 34m

Sydney Kingsford Smith

일 8/16

8:45 pm-4:01 pm

1 stop36h 16m

$1,089

San DiegoSydney

SAN - SYD

SANSYD

San Diego

일 8/9

3:57 pm-6:50 pm

1 stop33h 53m

Sydney Kingsford Smith

일 8/23

8:45 pm-6:52 am

1 stop27h 07m

$1,095

San DiegoSydney

SAN - SYD

SANSYD

San Diego

화 10/13

8:35 am-6:50 pm

1 stop40h 15m

Sydney Kingsford Smith

화 10/20

8:45 pm-8:39 pm

1 stop17h 54m

$1,101

San DiegoSydney

SAN - SYD

SANSYD

San Diego

일 10/18

8:35 am-6:50 pm

1 stop40h 15m

Sydney Kingsford Smith

금 10/30

9:40 pm-6:35 am

1 stop26h 55m

$1,112

San DiegoSydney

SAN - SYD

SANSYD

San Diego

화 10/13

8:35 am-6:50 pm

1 stop40h 15m

Sydney Kingsford Smith

화 10/20

8:45 pm-8:39 pm

1 stop17h 54m

$1,116

San DiegoSydney

SAN - SYD

SANSYD

San Diego

토 10/31

12:42 pm-8:15 pm

2 stops37h 33m

Sydney Kingsford Smith

일 11/15

12:25 pm-5:59 pm

2 stops24h 34m

$1,128
Quickest round-trip

San DiegoSydney

SAN - SYD

SANSYD

San Diego

화 10/27

11:02 am-7:45 pm

1 stop38h 43m

Sydney Kingsford Smith

토 11/7

9:40 pm-8:08 pm

1 stop17h 28m

$1,129

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 $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 $1,148 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 $808 on momondo.

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

You could potentially save up to 8% 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 37% 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

19h 52m

Direct flights

None
The fastest flight from San Diego to Sydney takes 19h 52m
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 19h 52m.

  • 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
11,323 reviews
Search Air Canada flights
United AirlinesPriceFrom $834Free CancellationRating
7.4
9,966 reviews
Search United Airlines flights
American AirlinesPriceFrom $845Free CancellationRating
7.1
11,798 reviews
Search American Airlines flights
DeltaPriceFrom $949Free CancellationRating
7.8
8,456 reviews
Search Delta flights
Air New ZealandPriceFrom $1,075Free CancellationRating
8.0
650 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
Penrith
Wollongong
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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