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San Diego

$542+ 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAN
Jun 14 — Jun 211
Sun 6/14
Sun 6/21
1 adult, Economy
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Cheap 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 May 15, 2026.

This United Airlines deal was found by Cheapflights users on 5/14. 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.
Thu 5/2110:20 am
SYD
-
SAN
1 stop22h 47m
United Airlines
Wed 6/37:41 pm
SAN
-
SYD
1 stop18h 14m
United Airlines
Deal found 5/14$964
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Wed 5/209:30 am
SYD
-
SAN
2 stops22h 26m
United Airlines
Wed 5/271:39 pm
SAN
-
SYD
2 stops24h 21m
United Airlines
Deal found 5/13$966
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 6/89:30 am
SYD
-
SAN
2 stops21h 38m
United Airlines
Mon 6/2212:33 pm
SAN
-
SYD
2 stops25h 27m
United Airlines
Deal found 5/11$968
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 5/189:30 am
SYD
-
SAN
2 stops23h 09m
United Airlines
Sun 5/311:39 pm
SAN
-
SYD
2 stops24h 21m
United Airlines
Deal found 5/11$970
This KAYAK deal was found by Cheapflights users on 5/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:20 am
SYD
-
SAN
1 stop20h 48m
Air New Zealand
Mon 6/228:32 pm
SAN
-
SYD
1 stop17h 28m
Air New Zealand
Deal found 5/12$975
This Ovago deal was found by Cheapflights users on 5/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:20 am
SYD
-
SAN
1 stop16h 39m
Air New Zealand
Sun 6/211:39 pm
SAN
-
SYD
1 stop24h 16m
Air New Zealand
Deal found 5/11$976

Find 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 May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$966
(United Airlines)

One-way from

$542
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$930
Provider with most accurate pricing for Sydney Kingsford Smith-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-San Diego flights.
Search Deals
From Sydney Kingsford Smith to San Diego
Search Deals
One-way flight from Sydney Kingsford Smith to San Diego
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($91 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 15, 2026.
Use the filters below to find and compare flights from Sydney to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 6/8

9:30 am-5:20 pm

2 stops24h 50m

San Diego

Sun 6/21

8:32 pm-7:00 am

1 stop17h 28m

$966

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 6/8

9:30 am-2:08 pm

2 stops21h 38m

San Diego

Mon 6/22

11:55 am-6:55 am

1 stop26h 00m

$968
Quickest round-trip

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sun 6/7

9:30 am-10:08 am

1 stop17h 38m

San Diego

Sun 6/21

8:32 pm-7:00 am

1 stop17h 28m

$1,023

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 5/25

9:15 am-10:19 am

1 stop18h 04m

San Diego

Sun 6/7

7:56 pm-6:50 am

1 stop17h 54m

$1,041

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 6/29

9:30 am-4:07 pm

2 stops23h 37m

San Diego

Mon 7/6

4:09 pm-6:55 am

1 stop21h 46m

$1,043
Cheapest one-way

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 6/8

9:10 am-5:53 pm

2 stops25h 43m

$586

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 8/13

9:15 am-11:50 pm

2 stops31h 35m

$595

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 8/13

9:30 am-12:29 am

3 stops31h 59m

$595

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 6/8

10:20 am-11:54 pm

2 stops30h 34m

$596

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 6/15

9:15 am-11:40 pm

1 stop31h 25m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Sydney to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to San Diego in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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 39 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, September is the cheapest month in which you can book a flight from Sydney to San Diego (average of $840). Flying from Sydney to San Diego in December is currently the most expensive (average of $1,289). 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.

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 May 15, 2026.
Peruse reviews from past customers who have flown with Delta and United Airlines 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
7.9
Good
8,452 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.8

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
7.9
Good
8,452 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.8

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
9,717 reviews
Delta
7.9
Good
8,452 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.8

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?

    United Airlines can get you from Sydney to San Diego in just under 24h 50m. Your travel time can differ by up to . The distance between Sydney and San Diego is about 7510 mi.

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

    United Airlines, at $834, was found to be the cheapest airline from Sydney to San Diego. An alternate airline flying to your destination would be Delta. United Airlines is currently priced 19% 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, September is the cheapest month in which you can book a flight from Sydney to San Diego (average of $840). Flying from Sydney to San Diego in December is currently the most expensive (average of $1,289). 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
National City
Coronado
Poway
La Mesa
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Los Angeles flights
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Sydney to Las Vegas flights
Sydney to Sacramento flights
Sydney to Oakland flights
Sydney to San Jose flights

Top 2 airlines flying from Sydney to San Diego

Discover the top 2 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$834Average$1,080FlexibilityNo cancel feeOn-time69%
DeltaCheapest$834Average$1,081FlexibilityNo cancel feeOn-timeN/A

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