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Cheap flights from San Diego to Sydney from $426

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SYD
9 Jul — 16 Jul1
1 adult

Cheapflights Tip: The best prices from San Diego to Sydney Kingsford Smith are usually found in August or June, booked 71 days in advance, depart on a Monday or Tuesday and return on a Monday

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 4 July 2025.

Round-trip from

$1,070

One-way from

$426

Popular in

December

Cheapest in

August

Average price

$1,874
20/8-27/8
  • 20/8-27/8
  • 3 total stops
  • 67h 51m total
  • San Diego to Sydney
2/9
  • 2/9
  • 1 total stop
  • 27h 50m total
  • San Diego to Sydney
Highest demand for flights based on searches. 15% potential increase in price ($499 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($83 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 4 July 2025.

Thu 16/1017:55SAN - SYD
1 stop27h 45mMultiple Airlines
Wed 22/1017:20SYD - SAN
1 stop17h 10mMultiple Airlines
Deal found 1/7$1,112
Fri 8/812:50SAN - SYD
2 stops25h 40mAmerican Airlines
Sun 24/809:10SYD - SAN
2 stops23h 15mAmerican Airlines
Deal found 1/7$1,286
Tue 9/916:55SAN - SYD
2 stops25h 45mAir Canada
Tue 30/909:20SYD - SAN
1 stop23h 47mAir Canada
Deal found 2/7$1,302
Fri 29/810:00SAN - SYD
1 stop27h 35mDelta
Tue 9/909:25SYD - SAN
1 stop25h 40mDelta
Deal found 1/7$1,304
Fri 29/816:11SAN - SYD
2 stops21h 49mUnited Airlines
Tue 9/909:30SYD - SAN
2 stops22h 38mUnited Airlines
Deal found 1/7$1,310

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 4 July 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

Wed 20/8

18:59-14:40

2 stops50h 41m

Sydney Kingsford Smith

Wed 27/8

16:20-16:30

1 stop17h 10m

$1,070

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 8/8

12:50-07:30

2 stops25h 40m

Sydney Kingsford Smith

Sun 24/8

09:10-15:25

2 stops23h 15m

$1,286

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 9/9

16:55-11:40

2 stops25h 45m

Sydney Kingsford Smith

Tue 30/9

09:20-16:07

1 stop23h 47m

$1,302

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 8/8

16:00-06:35

1 stop21h 35m

Sydney Kingsford Smith

Sun 24/8

09:25-15:19

1 stop22h 54m

$1,304

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 15/8

20:44-07:00

1 stop17h 16m

Sydney Kingsford Smith

Fri 22/8

09:30-10:13

1 stop17h 43m

$1,426

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 31/10

09:05-19:45

1 stop40h 40m

Sydney Kingsford Smith

Sat 15/11

21:40-20:06

1 stop17h 26m

$1,789

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 22/7

16:49-22:10

2 stops36h 21m

Sydney Kingsford Smith

Tue 29/7

13:15-19:32

2 stops23h 17m

$1,884

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 2/9

17:50-14:40

1 stop27h 50m

$426

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Fri 31/10

12:40-06:10

2 stops23h 30m

$657

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Sun 31/8

13:38-06:35

2 stops23h 57m

$668

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 14 results
1
2

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 return 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 return flight from San Diego to Sydney. Price data was last updated on 27 June 2025.

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from San Diego to Sydney (average of $129). Flying from San Diego to Sydney in October is currently the most expensive (average of $171). 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 for a return flight from San Diego to Sydney?

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 4 July 2025.
Get a feel of what it's like to fly with Asiana Airlines, Alaska Airlines, andFiji Airways from San Diego to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Overall

8.2

Comfort

8.0

Crew

8.5

Boarding

8.4

Food

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2025

IAH - LAX

My flight out of Houston was delayed 3 hours which put my Incheon connection in jeopardy. After 4 calls to United and Asiana I finally understood United had to rebook the flight for me not Asiana. Then the United flight arrived and it was determined I possibly could make the connection. I asked for a wheelchair as I am 80 years old and I knew I couldn’t run for the connection. Long story short there was no wheelchair waiting- no personnel available to help when I arrived LA. I missed my flight and spent two hours in the LA airport trying to get rebooked- locate my luggage and figure out how to get to the Hotel United provided. Fortunately there were no problems with the Asiana flight the next day. They upgraded my seat, had a wheelchair waiting at Incheon and made sure my luggage was taken care of. I understand there can be unavoidable delays but as a customer I need to be assured united will work to fix the problem for me not add to my distress.

Entertainment

7.8

Overall

8.2

Comfort

8.0

Crew

8.5

Boarding

8.4

Food

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2025

IAH - LAX

My flight out of Houston was delayed 3 hours which put my Incheon connection in jeopardy. After 4 calls to United and Asiana I finally understood United had to rebook the flight for me not Asiana. Then the United flight arrived and it was determined I possibly could make the connection. I asked for a wheelchair as I am 80 years old and I knew I couldn’t run for the connection. Long story short there was no wheelchair waiting- no personnel available to help when I arrived LA. I missed my flight and spent two hours in the LA airport trying to get rebooked- locate my luggage and figure out how to get to the Hotel United provided. Fortunately there were no problems with the Asiana flight the next day. They upgraded my seat, had a wheelchair waiting at Incheon and made sure my luggage was taken care of. I understand there can be unavoidable delays but as a customer I need to be assured united will work to fix the problem for me not add to my distress.

Entertainment

7.8

Overall

8.2

Comfort

8.0

Crew

8.5

Boarding

8.4

Food

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2025

IAH - LAX

My flight out of Houston was delayed 3 hours which put my Incheon connection in jeopardy. After 4 calls to United and Asiana I finally understood United had to rebook the flight for me not Asiana. Then the United flight arrived and it was determined I possibly could make the connection. I asked for a wheelchair as I am 80 years old and I knew I couldn’t run for the connection. Long story short there was no wheelchair waiting- no personnel available to help when I arrived LA. I missed my flight and spent two hours in the LA airport trying to get rebooked- locate my luggage and figure out how to get to the Hotel United provided. Fortunately there were no problems with the Asiana flight the next day. They upgraded my seat, had a wheelchair waiting at Incheon and made sure my luggage was taken care of. I understand there can be unavoidable delays but as a customer I need to be assured united will work to fix the problem for me not add to my distress.

Entertainment

7.8

Overall

8.2

Comfort

8.0

Crew

8.5

Boarding

8.4

Food

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2025

IAH - LAX

My flight out of Houston was delayed 3 hours which put my Incheon connection in jeopardy. After 4 calls to United and Asiana I finally understood United had to rebook the flight for me not Asiana. Then the United flight arrived and it was determined I possibly could make the connection. I asked for a wheelchair as I am 80 years old and I knew I couldn’t run for the connection. Long story short there was no wheelchair waiting- no personnel available to help when I arrived LA. I missed my flight and spent two hours in the LA airport trying to get rebooked- locate my luggage and figure out how to get to the Hotel United provided. Fortunately there were no problems with the Asiana flight the next day. They upgraded my seat, had a wheelchair waiting at Incheon and made sure my luggage was taken care of. I understand there can be unavoidable delays but as a customer I need to be assured united will work to fix the problem for me not add to my distress.
8.0
Very Good

Entertainment

7.8

Overall

8.2

Comfort

8.0

Crew

8.5

Boarding

8.4

Food

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2025

IAH - LAX

My flight out of Houston was delayed 3 hours which put my Incheon connection in jeopardy. After 4 calls to United and Asiana I finally understood United had to rebook the flight for me not Asiana. Then the United flight arrived and it was determined I possibly could make the connection. I asked for a wheelchair as I am 80 years old and I knew I couldn’t run for the connection. Long story short there was no wheelchair waiting- no personnel available to help when I arrived LA. I missed my flight and spent two hours in the LA airport trying to get rebooked- locate my luggage and figure out how to get to the Hotel United provided. Fortunately there were no problems with the Asiana flight the next day. They upgraded my seat, had a wheelchair waiting at Incheon and made sure my luggage was taken care of. I understand there can be unavoidable delays but as a customer I need to be assured united will work to fix the problem for me not add to my distress.

Entertainment

7.8

Overall

8.2

Comfort

8.0

Crew

8.5

Boarding

8.4

Food

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,June 2025

IAH - LAX

My flight out of Houston was delayed 3 hours which put my Incheon connection in jeopardy. After 4 calls to United and Asiana I finally understood United had to rebook the flight for me not Asiana. Then the United flight arrived and it was determined I possibly could make the connection. I asked for a wheelchair as I am 80 years old and I knew I couldn’t run for the connection. Long story short there was no wheelchair waiting- no personnel available to help when I arrived LA. I missed my flight and spent two hours in the LA airport trying to get rebooked- locate my luggage and figure out how to get to the Hotel United provided. Fortunately there were no problems with the Asiana flight the next day. They upgraded my seat, had a wheelchair waiting at Incheon and made sure my luggage was taken care of. I understand there can be unavoidable delays but as a customer I need to be assured united will work to fix the problem for me not add to my distress.

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?

    Cheapflights users have booked flights from San Diego to Sydney round-trip from $1,286. Other airlines that can offer you cheap pricing are Air Canada, from $1,302, and Delta, from $1,304. You may be able to fly from San Diego to Sydney for 28% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Diego to Sydney one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $657. Delta flights start at $668 while deals on United Airlines start at $755 one-way.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from San Diego to Sydney (average of $129). Flying from San Diego to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Parramatta
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Katoomba
Manly
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Cronulla
Terrigal
Lithgow
Bondi Beach
Leura

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Top airline flying from San Diego to Sydney

Discover the top airline 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 647,157 searches. Data last updated 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,108Average$1,724FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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