£477 Cheap Flights from San Diego (SAN) to Sydney (SYD)

View £477 flight on Sun, 21 Feb 2027Opens in a new window

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

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

Prices were available within the past 7 days and start at £477 for one-way flights and £870 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 11 Jun - Wed, 17 Jun
SAN
San Diego
SYD
Sydney
£870 Return, found 3 days ago
£870
Return
found 3 days ago
Select Air Canada flight, departing Thu, 11 Jun from San Diego to Sydney, returning Wed, 17 Jun, priced at £870 found 3 days ago
Alaska Airlines
Fri, 26 Jun - Tue, 14 Jul
SAN
San Diego
SYD
Sydney
£876 Return, found 6 days ago
£876
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 26 Jun from San Diego to Sydney, returning Tue, 14 Jul, priced at £876 found 6 days ago
Alaska Airlines
Fri, 26 Jun - Tue, 14 Jul
SAN
San Diego
SYD
Sydney
£885 Return, found 6 days ago
£885
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 26 Jun from San Diego to Sydney, returning Tue, 14 Jul, priced at £885 found 6 days ago
Air Canada
Sat, 6 Jun - Sat, 11 Jul
SAN
San Diego
SYD
Sydney
£893 Return, found 5 days ago
£893
Return
found 5 days ago
Select Air Canada flight, departing Sat, 6 Jun from San Diego to Sydney, returning Sat, 11 Jul, priced at £893 found 5 days ago
Alaska Airlines
Fri, 19 Jun - Sat, 11 Jul
SAN
San Diego
SYD
Sydney
£898 Return, found 6 days ago
£898
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 19 Jun from San Diego to Sydney, returning Sat, 11 Jul, priced at £898 found 6 days ago
Alaska Airlines
Fri, 19 Jun - Sat, 11 Jul
SAN
San Diego
SYD
Sydney
£907 Return, found 6 days ago
£907
Return
found 6 days ago
Select Alaska Airlines flight, departing Fri, 19 Jun from San Diego to Sydney, returning Sat, 11 Jul, priced at £907 found 6 days ago
Alaska Airlines
Tue, 23 Mar - Tue, 6 Apr
SAN
San Diego
SYD
Sydney
£944 Return, found 1 day ago
£944
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 23 Mar from San Diego to Sydney, returning Tue, 6 Apr, priced at £944 found 1 day ago
United
Wed, 16 Sept - Wed, 23 Sept
SAN
San Diego
SYD
Sydney
£966 Return, found 2 days ago
£966
Return
found 2 days ago
Select United flight, departing Wed, 16 Sept from San Diego to Sydney, returning Wed, 23 Sept, priced at £966 found 2 days ago
Delta
Wed, 16 Sept - Wed, 23 Sept
SAN
San Diego
SYD
Sydney
£1,067 Return, found 2 days ago
£1,067
Return
found 2 days ago
Select Delta flight, departing Wed, 16 Sept from San Diego to Sydney, returning Wed, 23 Sept, priced at £1,067 found 2 days ago
Air New Zealand
Tue, 23 Mar - Tue, 6 Apr
SAN
San Diego
SYD
Sydney
£1,110 Return, found 1 day ago
£1,110
Return
found 1 day ago
Select Air New Zealand flight, departing Tue, 23 Mar from San Diego to Sydney, returning Tue, 6 Apr, priced at £1,110 found 1 day ago

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

October is typically the cheapest month to fly

From £786 - £1,040 per traveller.

Frequently asked questions

What is the cheapest month to fly from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
April is typically the cheapest month to fly from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), with average return fares of approximately £675. This is about 19% lower than the average price throughout the year. April often sees lower prices as it falls outside of peak holiday seasons, making it a great time to find deals. Other cheap months to fly from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) include February and July.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
To find a cheap flight from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Based on booking data from the past year, the best time to fly from San Diego, CA (SAN-San Diego Intl.) (SAN) to Sydney, NSW (SYD-Kingsford Smith Intl.) (SYD) is July. While April and July are typically the cheapest months, with average prices around £675 for a return flight, July stands out as it's also a popular time to travel, meaning you'll likely find more flight options. This balance of good value and availability makes July an ideal time for your trip.*Prices based on flights available on Expedia in the last year.
How many flights per day from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are approximately 48 connecting flights per day from San Diego International (SAN) to Sydney Kingsford Smith International (SYD). Some common connection points include San Francisco International Airport (SFO), Dallas-Fort Worth International Airport (DFW), and Los Angeles International Airport (LAX).
What is the earliest flight from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The earliest flight from San Diego Intl. (SAN) to Kingsford Smith Intl. (SYD) typically departs at approximately 6:00 AM local time, operated by American Airlines. This is a seasonal service active in March. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
You'll typically find the most flights from San Diego Intl. (SAN) to Kingsford Smith Intl. (SYD) on a Sunday, with around 50 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Alaska Airlines. Flight schedules are notably more flight options on Sundays compared to other days of the week.
What are the most popular departure times for flights from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The most popular departure times for flights from San Diego Intl. (SAN) to Kingsford Smith Intl. (SYD) are in the evening, from 6pm to 9pm. About 24% of passengers prefer this time. Many major carriers, including Delta Air Lines, United Airlines and Air Canada, offer flights during this window. This timing works well because it allows you to finish your day in San Diego before heading to the airport, and you'll arrive in Sydney ready to start your adventure.
How long does it take to fly from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
A flight from SAN to SYD with a layover takes around 18 hours 20 minutes, with the route covering approximately 7,516 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Select the "Business class" and "First class" filters when looking for SAN to SYD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight with Expedia?
It's easy to earn miles on a San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sydney from San Diego Intl. (SAN)?
From San Diego Intl. (SAN), you can fly into Kingsford Smith Intl. (SYD) to reach Sydney. Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Sky Harbor Intl. (PHX), Los Angeles Intl. (LAX) before reaching Sydney. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) at the last minute?
Typically, booking a last minute flight from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package?
Securing a San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
If you booked your San Diego, CA (SAN-San Diego Intl.) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Diego Intl.
Destination airport
Kingsford Smith Intl.
Return price
£870
Distance
12024 km

Book with confidence

Compare flights from San Diego to Sydney easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Diego to Sydney. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Kingsford Smith Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Diego Intl. to Kingsford Smith Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Diego Intl. (SAN) to Kingsford Smith Intl. (SYD)

The easiest way to view the best deals on flights from San Diego to Sydney today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Diego Intl. to Kingsford Smith Intl. start at just £870 and range up to £1,110.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Diego and Sydney
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Diego to Sydney flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Diego Intl. to Kingsford Smith Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Diego to Sydney easily and book with confidence

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*Available to Expedia members.