SAN - SYD

$543 Find Cheap Flights from San Diego to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Sydney departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Sydney, as well as popular online travel agencies
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Cheap Flights from San Diego to Sydney (SAN-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Diego to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Diego to Sydney

Thu, 4 Sep - Fri, 12 Sep
 Logo
17:50 - 14:40SAN-SYD
27h 50m1 stop
 Logo
16:20 - 16:30SYD-SAN
17h 10m1 stop
$1,164
Find Deal
Thu, 4 Sep - Fri, 12 Sep
 Logo
11:17 - 14:40SAN-SYD
34h 23m2 stops
 Logo
16:20 - 20:59SYD-SAN
21h 39m1 stop
$1,167
Find Deal
Sat, 30 Aug - Fri, 12 Sep
 Logo
16:59 - 14:40SAN-SYD
28h 41m2 stops
 Logo
16:20 - 16:30SYD-SAN
17h 10m1 stop
$1,224
Find Deal
Sun, 19 Oct - Wed, 19 Nov
Air Canada Logo
16:40 - 08:20SAN-SYD
21h 40m1 stop
Air Canada Logo
11:20 - 17:24SYD-SAN
25h 04m1 stop
$1,257Air Canada
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Sun, 19 Oct - Wed, 19 Nov
Air Canada Logo
16:40 - 08:20SAN-SYD
21h 40m1 stop
Air Canada Logo
11:20 - 17:24SYD-SAN
25h 04m1 stop
$1,259Air Canada
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Sun, 14 Sep - Sun, 21 Sep
American Airlines Logo
16:40 - 07:05SAN-SYD
21h 25m2 stops
American Airlines Logo
09:10 - 15:21SYD-SAN
23h 11m2 stops
$1,283American Airlines
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Sun, 14 Sep - Sun, 21 Sep
American Airlines Logo
14:34 - 06:55SAN-SYD
23h 21m1 stop
American Airlines Logo
09:10 - 15:21SYD-SAN
23h 11m2 stops
$1,285American Airlines
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Sat, 13 Sep - Sat, 20 Sep
Delta Logo
18:57 - 06:35SAN-SYD
18h 38m1 stop
Delta Logo
09:25 - 09:19SYD-SAN
16h 54m1 stop
$1,330Delta
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Sat, 13 Sep - Sat, 20 Sep
United Airlines Logo
14:21 - 07:00SAN-SYD
23h 39m1 stop
United Airlines Logo
09:30 - 17:29SYD-SAN
24h 59m2 stops
$1,336United Airlines
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Sat, 30 Aug - Fri, 12 Sep
United Airlines Logo
13:58 - 07:00SAN-SYD
24h 02m2 stops
United Airlines Logo
09:30 - 17:29SYD-SAN
24h 59m2 stops
$1,420United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Diego to Sydney flights

Get data-powered insights and trends into flights from San Diego to Sydney to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Diego to Sydney?

What’s the cheapest day of the week to fly from San Diego to Sydney?

The average price of all round-trip flights from San Diego to Sydney clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Diego to Sydney, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Sydney, Monday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from San Diego to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Sydney is August, where tickets cost $1,498 (return) on average. On the other hand, the most expensive months are January and July, where the average cost of round-trip tickets is $2,213 and $1,887 respectively.

How far in advance should I book a flight from San Diego to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Sydney, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.


Good to know

Low seasonApril
Cheapest flight$543
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from San Diego to Sydney

When to book flights from San Diego to Sydney

Are your dates flexible? Find out the best times to travel from San Diego to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Sydney

  • Where are the common layover options for San Diego to Sydney flights?

    San Diego to Sydney flights are usually connecting flights with one or two layovers en route. The stopover will depend on the airline you're flying with and some of the most common stopover cities are Los Angeles (LAX), Phoenix (PHX), Vancouver (YVR), Honolulu (HNL), and San Francisco (SFO).

  • What travel documents do I need when flying from San Diego to Sydney?

    US citizens flying from San Diego to Sydney must present a valid US passport and an approved Electronic Travel Authority (ETA) or visa to enter Sydney. Most US citizens with valid passports can obtain an ETA if they travel to Sydney for business or tourism for up to 90 days. The passport must be valid at the time of entry into Sydney and should have at least one blank passport page for an entry stamp.

  • Which airlines flying from San Diego to Sydney are ideal for travelers with limited mobility?

    Each airline flying from San Diego offers assistance services to passengers with special needs. The airlines have a wheelchair assistance program that helps passengers with reduced mobility easily get through the airport. You can request a wheelchair from the gate attendants or visit your airline's check-in counter. Travelers with special needs will also be assisted with their luggage from the check-in gates to the baggage claim on arrival at SYD. We recommend informing your airline of any special when booking your flight or at least 48 hours before the flight.

  • Are there public transportation options from Sydney International Airport?

    The Airport Link train provides a convenient and fast way from the airport to the city center and the surrounding suburbs. Trains depart every 10 minutes from the airport station at the terminal's Northern End. The train airport's train station is easily accessible from the Arrivals area of the terminal.

  • What is the cheapest flight from San Diego to Sydney?

    In the last 3 days, the lowest price for a flight from San Diego to Sydney was $350 for a one-way ticket and $750 for a return.

  • Which aircraft models fly most regularly from San Diego to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Sydney?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Diego and Sydney, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from San Diego to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to San Diego with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Diego to Sydney

  • Flights to Sydney from San Diego usually land at San Diego Kingsford Smith Airport (SYD). The airport is a primary hub for Qantas and a secondary hub for Jetstar and Virgin Australia. As such, flying with these airlines will give you more flight options.
  • Consider flying Business Class when flying with United Airlines from San Diego International Airport (SAN) to Sydney. The airport hosts United Club near the departure gates on the Mezzanine Level Airside of Terminal 1. The airline's Business Class ticket grants access to the lounge by paying at the door.
  • San Diego Airport has several pet relief areas for passengers traveling with their pets or service animals. One pet relief area is the Airside of Terminal 2 West, while others are outside the secure areas. Each area has grass, trash cans, a bag, and a sinker to help clean after use.
  • Consider booking First Class when flying with Japan Airlines from San Diego to Sydney. The airline’s First Class seats are open suites that feel exceptionally private. They offer very spacious seats, premium dining options, and enhanced inflight entertainment.
  • Singapore Airlines offers some of the best flights for families flying from San Diego to Sydney. When flying with the children, you can pick standard seats for free in advance. Parents traveling with infants will also enjoy priority boarding at SAN.

Reviews of the top airline flying from San Diego to Sydney

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8900 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

6.0 GoodLeilani, July 2025SFO - KOA
Read more United Airlines reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Everything you need to know for your flight from San Diego to Sydney

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