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Cheap flights from San Diego to Sydney from $449

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 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
5:00 pm - 7:20 amSAN-SYD
21h 20m1 stop
Air Canada Logo
9:20 am - 9:53 pmSYD-SAN
29h 33m1 stop
$909Air Canada
Find Deal
Mon, May 11 - Wed, May 20
Multiple Airlines Logo
6:15 am - 7:20 amSAN-SYD
32h 05m1 stop
Multiple Airlines Logo
6:00 am - 12:02 pmSYD-SAN
23h 02m2 stops
$923Multiple Airlines
Find Deal
Mon, May 11 - Wed, May 20
Multiple Airlines Logo
12:45 pm - 7:20 amSAN-SYD
25h 35m1 stop
Multiple Airlines Logo
8:10 pm - 12:02 pmSYD-SAN
32h 52m2 stops
$928Multiple Airlines
Find Deal
Sun, May 10 - Sat, May 23
Multiple Airlines Logo
12:45 pm - 10:40 amSAN-SYD
28h 55m2 stops
Multiple Airlines Logo
6:00 am - 12:02 pmSYD-SAN
23h 02m2 stops
$942Multiple Airlines
Find Deal
Mon, May 11 - Wed, May 20
Air Canada Logo
6:05 pm - 9:35 amSAN-SYD
20h 30m1 stop
Air Canada Logo
10:20 am - 5:24 pmSYD-SAN
25h 04m1 stop
$951Air Canada
Find Deal
Sat, Mar 7 - Sun, Mar 15
Air Canada Logo
6:05 pm - 9:35 amSAN-SYD
20h 30m1 stop
Air Canada Logo
8:00 am - 5:24 pmSYD-SAN
27h 24m2 stops
$966Air Canada
Find Deal
Sat, Mar 7 - Sun, Mar 15
Air Canada Logo
12:45 pm - 12:40 pmSAN-SYD
29h 55m2 stops
Air Canada Logo
10:20 am - 12:03 pmSYD-SAN
19h 43m1 stop
$969Air Canada
Find Deal
Thu, Mar 19 - Tue, Mar 24
Air Canada Logo
6:05 pm - 4:40 pmSAN-SYD
27h 35m2 stops
Air Canada Logo
10:25 am - 5:24 pmSYD-SAN
24h 59m1 stop
$970Air Canada
Find Deal
Sun, Mar 1 - Thu, Mar 12
Multiple Airlines Logo
6:05 pm - 2:25 pmSAN-SYD
25h 20m2 stops
Multiple Airlines Logo
10:25 am - 5:24 pmSYD-SAN
24h 59m1 stop
$982Multiple Airlines
Find Deal
Sun, Mar 1 - Thu, Mar 12
Air Canada Logo
6:05 pm - 4:40 pmSAN-SYD
27h 35m2 stops
Air Canada Logo
8:00 am - 5:24 pmSYD-SAN
27h 24m2 stops
$984Air Canada
Find Deal
Sun, Mar 1 - Thu, Mar 12

United Airlines flights from San Diego to Sydney

Our best United Airlines deals on San Diego to Sydney flight tickets
United Airlines
Jan 30
SAN12:49 pmSan Diego
25h 26m
1 stop
SYD9:15 amSydney Kingsford Smith
Feb 10
SYD2:00 pmSydney Kingsford Smith
23h 44m
1 stop
SAN6:44 pmSan Diego
$1,160
Find similar
United Airlines
Feb 6
SAN11:08 amSan Diego
24h 12m
2 stops
SYD6:20 amSydney Kingsford Smith
Feb 13
SYD11:20 amSydney Kingsford Smith
20h 19m
2 stops
SAN12:39 pmSan Diego
$1,215
Find similar
United Airlines
Dec 30
SAN4:00 pmSan Diego
22h 05m
2 stops
SYD9:05 amSydney Kingsford Smith
Jan 11
SYD12:10 pmSydney Kingsford Smith
17h 36m
1 stop
SAN10:46 amSan Diego
$1,396
Find similar

Air Canada flights from San Diego to Sydney

Our best Air Canada deals on San Diego to Sydney flight tickets
Air Canada
Feb 6
SAN6:05 pmSan Diego
20h 30m
1 stop
SYD9:35 amSydney Kingsford Smith
Feb 13
SYD11:20 amSydney Kingsford Smith
19h 43m
1 stop
SAN12:03 pmSan Diego
$994
Find similar
Air Canada
Feb 12
SAN6:05 pmSan Diego
20h 30m
1 stop
SYD9:35 amSydney Kingsford Smith
Mar 1
SYD8:00 amSydney Kingsford Smith
23h 03m
2 stops
SAN12:03 pmSan Diego
$1,136
Find similar
Air Canada
Dec 2
SAN12:45 pmSan Diego
23h 10m
1 stop
SYD6:55 amSydney Kingsford Smith
Dec 20
SYD4:00 pmSydney Kingsford Smith
20h 24m
1 stop
SAN5:24 pmSan Diego
$1,295
Find similar

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 November 23, 2025.
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

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 5/11

5:00 pm-7:20 am

1 stop21h 20m

Sydney Kingsford Smith

Wed 5/20

9:20 am-9:53 pm

1 stop29h 33m

$909

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 5/11

6:15 am-7:20 am

1 stop32h 05m

Sydney Kingsford Smith

Wed 5/20

6:00 am-12:02 pm

2 stops23h 02m

$923

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 5/10

12:45 pm-7:20 am

1 stop25h 35m

Sydney Kingsford Smith

Sat 5/23

8:10 pm-12:02 pm

2 stops32h 52m

$928

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 5/11

12:45 pm-10:40 am

2 stops28h 55m

Sydney Kingsford Smith

Wed 5/20

6:00 am-12:02 pm

2 stops23h 02m

$942

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 3/7

6:05 pm-9:35 am

1 stop20h 30m

Sydney Kingsford Smith

Sun 3/15

10:20 am-5:24 pm

1 stop25h 04m

$951

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 3/7

6:05 pm-9:35 am

1 stop20h 30m

Sydney Kingsford Smith

Sun 3/15

8:00 am-5:24 pm

2 stops27h 24m

$966

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 3/19

12:45 pm-12:40 pm

2 stops29h 55m

Sydney Kingsford Smith

Tue 3/24

10:20 am-12:03 pm

1 stop19h 43m

$969

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 3/1

6:05 pm-4:40 pm

2 stops27h 35m

Sydney Kingsford Smith

Thu 3/12

10:25 am-5:24 pm

1 stop24h 59m

$970

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 3/1

6:05 pm-2:25 pm

2 stops25h 20m

Sydney Kingsford Smith

Thu 3/12

10:25 am-5:24 pm

1 stop24h 59m

$982

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 3/1

6:05 pm-4:40 pm

2 stops27h 35m

Sydney Kingsford Smith

Thu 3/12

8:00 am-5:24 pm

2 stops27h 24m

$984

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, August 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 $949. If you are unable to visit Sydney during the month of August, then departing from San Diego during the month September is also very affordable. Most momondo users find prices during this month for around $965.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from San Diego to Sydney is on a Monday when prices can be found for as low as $1,157. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,453.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from San Diego to Sydney at noon for as low as $1,128. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the afternoon, with an average ticket price of $1,286. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $1,094 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 $934 on momondo.

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

You could potentially save up to 3% 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 November 2025, prices for San Diego to Sydney flights are approximately 31% 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

Direct flights

None
There are no direct flights from San Diego to Sydney. There are no popular flight routes from San Diego to Sydney.
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  • 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 17h 25m.

  • 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 $771Free CancellationRating
7.1
10,466 reviews
Search Air Canada flights
American AirlinesPriceFrom $845Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights
United AirlinesPriceFrom $899Free CancellationRating
7.4
9,036 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $934Free CancellationRating
8.0
11,339 reviews
Search Alaska Airlines flights
DeltaPriceFrom $949Free CancellationRating
7.9
7,997 reviews
Search Delta flights
Air New ZealandPriceFrom $956Free CancellationRating
8.0
534 reviews
Search Air New Zealand flights
Hawaiian AirlinesPriceFrom $1,138Free CancellationRating
7.8
2,813 reviews
Search Hawaiian Airlines flights

Traveling to a place near Sydney?

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