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$452+ Cheap flights from San Diego (SAN) to Sydney (SYD)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SYD
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Sydney Kingsford Smith are usually found in August or June, booked 22 days in advance, depart on a Monday or Sunday and return on a Wednesday

Cheap flight deals from San Diego to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Sydney (SYD). 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 July 28, 2025.

Round-trip from

$687
(Kiwi.com)

One-way from

$486
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$1,216
From San Diego to Sydney Kingsford Smith
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One-way flight from San Diego to Sydney Kingsford Smith
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Highest demand for flights based on searches. 5% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Diego to Sydney

Cheapest flights from San Diego to Sydney
Explore the most affordable flight options available from San Diego to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:17 amSAN - SYD
2 stops34h 23mMultiple Airlines
Fri 9/54:20 pmSYD - SAN
1 stop17h 10mMultiple Airlines
Deal found 7/27$687
This lol.travel deal was found by Cheapflights users on 7/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:11 pmSAN - SYD
2 stops21h 49mUnited Airlines
Wed 10/19:30 amSYD - SAN
2 stops20h 23mUnited Airlines
Deal found 7/28$785
This lol.travel deal was found by Cheapflights users on 7/27. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:15 amSAN - SYD
1 stop32h 05mAir Canada
Wed 8/209:20 amSYD - SAN
1 stop29h 33mAir Canada
Deal found 7/27$791
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Thu 9/114:40 pmSAN - SYD
2 stops21h 25mAmerican Airlines
Fri 9/2612:10 pmSYD - SAN
1 stop22h 53mAmerican Airlines
Deal found 7/26$846
This Delta deal was found by Cheapflights users on 7/28. 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.
Thu 9/117:46 pmSAN - SYD
1 stop17h 49mDelta
Fri 9/269:25 amSYD - SAN
1 stop23h 00mDelta
Deal found 7/28$858

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from San Diego to Sydney that are best for you.

Fly from

San Diego

Fly to

Sydney

Route

Depart

Return

Price

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 8/21

11:17 am-2:40 pm

2 stops34h 23m

Sydney Kingsford Smith

Fri 9/5

4:20 pm-4:30 pm

1 stop17h 10m

$687

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sat 9/20

4:11 pm-7:00 am

2 stops21h 49m

Sydney Kingsford Smith

Wed 10/1

9:30 am-12:53 pm

2 stops20h 23m

$785

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 8/7

6:15 am-7:20 am

1 stop32h 05m

Sydney Kingsford Smith

Wed 8/20

9:20 am-9:53 pm

1 stop29h 33m

$791

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 9/11

4:40 pm-7:05 am

2 stops21h 25m

Sydney Kingsford Smith

Fri 9/26

12:10 pm-6:03 pm

1 stop22h 53m

$846

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Thu 9/11

7:46 pm-6:35 am

1 stop17h 49m

Sydney Kingsford Smith

Fri 9/26

9:25 am-3:25 pm

1 stop23h 00m

$858

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 10/31

6:10 pm-8:35 am

1 stop20h 25m

$452

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/4

4:29 pm-6:55 am

1 stop21h 26m

$486

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Wed 11/12

1:10 pm-9:15 am

1 stop25h 05m

$496

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 11/10

10:00 am-8:30 am

1 stop27h 30m

$497

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Mon 8/4

6:15 am-7:20 am

3 stops32h 05m

$554

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 14 results
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Best time to book a flight from San Diego to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from San Diego 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 San Diego to Sydney

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Sydney. Price data was last updated on July 25, 2025.

The best time to book flights from San Diego to Sydney is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from San Diego to Sydney (average of $1,028). Flying from San Diego to Sydney in December is currently the most expensive (average of $1,619). 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 SAN to SYD?

Find hourly flight availability from San Diego to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

When flying from San Diego to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Diego to Sydney flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

What’s the top layover airport for flights from San Diego to Sydney?

Share of 1-stop round-trip flights from San Diego to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

San Francisco (SFO) – chosen by Cheapflights users on 73% of 1-stop itineraries from San Diego to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from San Diego to Sydney?

Average round-trip fare for 1-stop flights from San Diego to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $955.

What’s the fastest layover option from San Diego to Sydney?

Shortest average travel time for 1-stop one-way flights from San Diego to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Los Angeles (LAX) have the shortest average one-way travel time for 1-stop routes: 16h 10m.

Which airport typically offers the quickest layover for flights from San Diego to Sydney?

Average layover duration for 1-stop one-way flights from San Diego to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 1h 41m.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated July 28, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from San Diego to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,892 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,813 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

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

    Currently priced at $785, United Airlines will fly you from San Diego to Sydney and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and American Airlines - these airlines can fly you to your destination from $791 and $846, respectively. These flights start at 31% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Sydney 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 San Diego to Sydney?

    Currently, February is the cheapest month in which you can book a flight from San Diego to Sydney (average of $1,028). Flying from San Diego to Sydney in December is currently the most expensive (average of $1,619). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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Top 6 airlines flying from San Diego to Sydney

Discover the top 6 airlines that operate flights from San Diego to Sydney. 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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$748Average$1,350FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$899Average$1,047FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$901Average$1,146FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$911Average$1,206FlexibilityNo cancel feeOn-time78%
DeltaCheapest$950Average$1,234FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$983Average$1,352FlexibilityNo cancel feeOn-time85%

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