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$401+ Cheap flights from Sydney (SYD) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAN
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Sydney Kingsford Smith to San Diego are usually found in September or August, booked 16 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Sydney to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.

Round-trip from

$730
(Air Canada)

One-way from

$401
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$985
From Sydney Kingsford Smith to San Diego
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One-way flight from Sydney Kingsford Smith to San Diego
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Highest demand for flights based on searches. 15% potential increase in price ($210 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Sydney to San Diego

Cheapest flights from Sydney to San Diego
Explore the most affordable flight options available from Sydney to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/411:20 amSYD - SAN
1 stop19h 43mAir Canada
jue. 11/206:10 pmSAN - SYD
1 stop20h 25mAir Canada
Deal found 9/11$730
This Gotogate deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/47:30 amSYD - SAN
2 stops23h 33mMultiple Airlines
jue. 11/206:10 pmSAN - SYD
1 stop20h 25mMultiple Airlines
Deal found 9/11$740
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/249:10 amSYD - SAN
2 stops23h 43mAmerican Airlines
mié. 2/1112:51 pmSAN - SYD
2 stops25h 09mAmerican Airlines
Deal found 9/9$826
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/129:40 pmSYD - SAN
2 stops27h 48mAlaska Airlines
mié. 10/296:48 pmSAN - SYD
2 stops30h 57mAlaska Airlines
Deal found 9/11$830
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1111:20 amSYD - SAN
2 stops21h 39mUnited Airlines
sáb. 10/1811:08 amSAN - SYD
2 stops50h 47mUnited Airlines
Deal found 9/10$838
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1210:30 amSYD - SAN
1 stop17h 57mUnited Airlines
mié. 10/291:10 pmSAN - SYD
2 stops25h 55mUnited Airlines
Deal found 9/11$840
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/1512:10 pmSYD - SAN
1 stop27h 38mUnited Airlines
mié. 1/1411:08 amSAN - SYD
1 stop26h 57mUnited Airlines
Deal found 9/9$841
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2410:30 amSYD - SAN
1 stop17h 57mUnited Airlines
vie. 10/318:40 pmSAN - SYD
1 stop18h 25mUnited Airlines
Deal found 9/8$843
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/249:25 amSYD - SAN
1 stop23h 00mDelta
mié. 2/113:59 pmSAN - SYD
1 stop21h 31mDelta
Deal found 9/10$845
This TravelUp deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2511:20 amSYD - SAN
1 stop29h 24mLufthansa
sáb. 11/17:50 pmSAN - SYD
1 stop19h 25mLufthansa
Deal found 9/10$858

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sydney to San Diego 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Sydney to San Diego that are best for you.

Fly from

Sydney

Fly to

San Diego

Route

Depart

Return

Price

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

jue. 3/5

9:00 am-5:24 pm

2 stops27h 24m

San Diego

lun. 3/9

6:10 pm-8:35 am

1 stop20h 25m

$743

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

mar. 11/4

7:30 am-12:03 pm

2 stops23h 33m

San Diego

jue. 11/20

6:10 pm-8:40 am

2 stops43h 30m

$754

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

mié. 9/24

9:10 am-3:53 pm

2 stops23h 43m

San Diego

mié. 2/11

12:51 pm-9:00 am

2 stops25h 09m

$826

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

dom. 10/12

9:40 pm-7:28 am

2 stops27h 48m

San Diego

mié. 10/29

6:48 pm-7:45 pm

2 stops30h 57m

$830

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

sáb. 10/11

11:20 am-2:59 pm

2 stops21h 39m

San Diego

sáb. 10/18

11:08 am-7:55 am

2 stops50h 47m

$838

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

dom. 10/12

10:30 am-10:27 am

1 stop17h 57m

San Diego

mié. 10/29

1:10 pm-9:05 am

2 stops25h 55m

$840

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

mar. 12/16

11:20 am-11:42 pm

1 stop31h 22m

San Diego

mié. 1/14

8:37 pm-9:05 am

1 stop17h 28m

$841

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

mar. 12/16

11:20 am-11:42 pm

1 stop31h 22m

San Diego

jue. 1/15

7:45 am-6:20 am

1 stop27h 35m

$841

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

mié. 10/15

5:20 pm-11:04 pm

3 stops47h 44m

$401

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

mié. 9/17

4:20 pm-6:53 pm

2 stops43h 33m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results
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Best time to book a flight from Sydney to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Sydney with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sydney to San Diego. Price data was last updated on August 29, 2025.

The price you pay for your flight from Sydney to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Sydney to San Diego?

Currently, August is the cheapest month in which you can book a flight from Sydney to San Diego (average of $286). Flying from Sydney to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to SAN?

Find hourly flight availability from Sydney to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

One of the essential ways to save on airfare from Sydney to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 27% on airfare.

How much does it cost to fly round-trip from Sydney to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated septiembre 11, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Air Canada from Sydney to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Sydney to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sydney to San Diego?

    Air Canada and American Airlines can get you from Sydney to San Diego in just under 23h 43m. Your travel time can differ by up to 3h 41m. The distance between Sydney and San Diego is about 7510 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Sydney to San Diego round-trip?

    Air Canada, at $795, was found to be the cheapest airline from Sydney to San Diego.Alternate airlines to your destination round-trip include Delta and United Airlines. Air Canada is currently priced 30% below the average price you’ll pay for this route.

  • Can I find deals for flights from Sydney to San Diego that include hotel bookings?

    Yes. In addition to deals on Sydney to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sydney to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to San Diego.

  • Can I find deals for business class flights from Sydney to San Diego?

    Yes. Cheapflights offers flight deals from Sydney to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Sydney to San Diego (average of $286). Flying from Sydney to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Sydney to San Diego

Discover the top 3 airlines that operate flights from Sydney to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$795Average$946FlexibilityNo cancel feeOn-time67%
DeltaCheapest$834Average$1,081FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$834Average$1,080FlexibilityNo cancel feeOn-time69%

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