$516 Cheap Flights from San Diego (SAN) to Sydney (SYD)

View $516 flight on Mon, May 4, 2026Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Sydney Airport (SYD)

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Cheap Flights from San Diego to Sydney (SAN-SYD)

Prices were available within the past 7 days and start at $516 for one-way flights and $826 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Apr 7 - Tue, Apr 14
SAN
San Diego
SYD
Sydney
$826 Roundtrip, found 1 hour ago
$826
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Tue, Apr 7 from San Diego to Sydney, returning Tue, Apr 14, priced at $826 found 1 hour ago
Air Canada
Wed, Sep 16 - Mon, Sep 21
SAN
San Diego
SYD
Sydney
$830 Roundtrip, found 17 hours ago
$830
Roundtrip
found 17 hours ago
Select Air Canada flight, departing Wed, Sep 16 from San Diego to Sydney, returning Mon, Sep 21, priced at $830 found 17 hours ago
Air Canada
Tue, Feb 10 - Tue, Feb 17
SAN
San Diego
SYD
Sydney
$838 Roundtrip, found 5 hours ago
$838
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Tue, Feb 10 from San Diego to Sydney, returning Tue, Feb 17, priced at $838 found 5 hours ago
Air Canada
Tue, Jan 27 - Tue, Feb 10
SAN
San Diego
SYD
Sydney
$839 Roundtrip, found 4 hours ago
$839
Roundtrip
found 4 hours ago
Select Air Canada flight, departing Tue, Jan 27 from San Diego to Sydney, returning Tue, Feb 10, priced at $839 found 4 hours ago
Air Canada
Sun, Mar 15 - Mon, Mar 23
SAN
San Diego
SYD
Sydney
$840 Roundtrip, found 3 hours ago
$840
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Sun, Mar 15 from San Diego to Sydney, returning Mon, Mar 23, priced at $840 found 3 hours ago
Air Canada
Tue, Jan 27 - Tue, Feb 10
SAN
San Diego
SYD
Sydney
$844 Roundtrip, found 4 hours ago
$844
Roundtrip
found 4 hours ago
Select Air Canada flight, departing Tue, Jan 27 from San Diego to Sydney, returning Tue, Feb 10, priced at $844 found 4 hours ago
American Airlines
Wed, Apr 8 - Wed, Apr 15
SAN
San Diego
SYD
Sydney
$950 Roundtrip, found 5 hours ago
$950
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Apr 8 from San Diego to Sydney, returning Wed, Apr 15, priced at $950 found 5 hours ago
United
Sun, Mar 15 - Sun, Mar 29
SAN
San Diego
SYD
Sydney
$963 Roundtrip, just found
$963
Roundtrip
just found
Select United flight, departing Sun, Mar 15 from San Diego to Sydney, returning Sun, Mar 29, priced at $963 just found
Alaska Airlines
Thu, Feb 19 - Fri, Feb 27
SAN
San Diego
SYD
Sydney
$998 Roundtrip, found 1 day ago
$998
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Feb 19 from San Diego to Sydney, returning Fri, Feb 27, priced at $998 found 1 day ago
Hawaiian Airlines
Fri, Dec 12 - Sun, Jan 11
SAN
San Diego
SYD
Sydney
$1,015 Roundtrip, found 1 day ago
$1,015
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Fri, Dec 12 from San Diego to Sydney, returning Sun, Jan 11, priced at $1,015 found 1 day ago

Find the cheapest month to fly from San Diego (SAN) to Sydney (SYD)

August is typically the cheapest month to fly

From $793 - $1,280 per traveler.

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $951
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $951

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD) cost?
Get a cheap one-way flight from $516 or cheap return flight from $826 from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD)?
April is the most affordable month to fly from SAN to SYD. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from SAN to SYD. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD)?
There aren't any daily nonstop flights from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from SAN to SYD?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD)?
To avoid potential delays on the San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD) last-minute?
Booking your flight from SAN to SYD just before your trip is usually more expensive. But if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a SAN to SYD flight and hotel package?
You can save money by booking a SAN to SYD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your preferred flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Kingsford Smith Intl. Airport (SYD)?
In most instances, you can cancel or modify your SAN to SYD flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

Travel information

Origin airport
San Diego Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, Delta, Fiji Airways, Hawaiian Airlines, Japan Airlines, Korean Air, Qantas Airways, United
Roundtrip price
$825
Distance
7515 mi

Book with confidence

San Diego to Sydney Flights

The cheapest times to fly from San Diego to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Sydney are during the month of April. You can find some of the cheapest flights from San Diego to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to Sydney

Sunday is one of the best days to book for cheap flights from San Diego to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Diego to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $516 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Diego to Sydney Flights

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*Available to One Key members.