Sydney

$1,364+ Cheap flights from San Juan to Sydney (SYD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SYD
May 25 — Jun 11
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Juan to Sydney

Cheapest flights from San Juan to Sydney
Explore the most affordable flight options available from San Juan to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2026.

This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 6/2310:29 am
SJU
-
SYD
2 stops30h 36m
American Airlines
Tue 7/712:00 pm
SYD
-
SJU
1 stop25h 40m
American Airlines
Deal found 4/21$1,364
This Delta deal was found by Cheapflights users on 4/23. 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.
Sat 5/27:30 am
SJU
-
SYD
2 stops33h 20m
Delta
Sat 5/169:15 am
SYD
-
SJU
2 stops27h 02m
Delta
Deal found 4/23$1,390
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sat 5/21:25 pm
SJU
-
SYD
2 stops27h 35m
United Airlines
Sat 5/169:30 am
SYD
-
SJU
2 stops28h 20m
United Airlines
Deal found 4/20$1,398
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Wed 10/216:00 am
SJU
-
SYD
1 stop33h 55m
American Airlines
Sat 10/311:05 pm
SYD
-
SJU
1 stop25h 28m
American Airlines
Deal found 4/21$1,410
This United Airlines deal was found by Cheapflights users on 4/21. 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 10/211:25 pm
SJU
-
SYD
2 stops27h 35m
United Airlines
Sat 10/3111:50 am
SYD
-
SJU
1 stop23h 36m
United Airlines
Deal found 4/21$1,414
This American Airlines deal was found by Cheapflights users on 4/20. 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.
Sat 5/210:01 am
SJU
-
SYD
2 stops31h 04m
American Airlines
Sat 5/1612:00 pm
SYD
-
SJU
1 stop30h 32m
American Airlines
Deal found 4/20$1,464
This United Airlines deal was found by Cheapflights users on 4/22. 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 8/262:20 pm
SJU
-
SYD
2 stops50h 40m
United Airlines
Thu 9/39:30 am
SYD
-
SJU
2 stops49h 08m
United Airlines
Deal found 4/22$1,468
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 8/2610:33 am
SJU
-
SYD
2 stops30h 32m
American Airlines
Thu 9/35:50 pm
SYD
-
SJU
2 stops32h 58m
American Airlines
Deal found 4/22$1,489
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Fri 10/93:56 pm
SJU
-
SYD
2 stops48h 59m
United Airlines
Tue 10/2010:30 am
SYD
-
SJU
2 stops41h 04m
United Airlines
Deal found 4/22$1,493

Find flight deals from San Juan to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) 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 April 25, 2026.

Round-trip from

$1,364
(American Airlines)

Popular in

July

Cheapest in

June

Average price

$1,635
From San Juan to Sydney Kingsford Smith
Highest demand for flights based on searches. 8% potential increase in price ($151 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($69 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan 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 April 25, 2026.
Use the filters below to find and compare flights from San Juan to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Tue 6/23

10:29 am-7:05 am

2 stops30h 36m

Sydney Kingsford Smith

Tue 7/7

12:00 pm-11:40 pm

1 stop25h 40m

$1,364

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Mon 6/8

10:29 am-7:30 am

2 stops31h 01m

Sydney Kingsford Smith

Mon 6/15

9:10 am-11:56 pm

2 stops28h 46m

$1,364

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sat 5/2

7:30 am-6:50 am

2 stops33h 20m

Sydney Kingsford Smith

Sat 5/16

9:15 am-10:17 pm

2 stops27h 02m

$1,390

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sat 5/2

1:25 pm-7:00 am

2 stops27h 35m

Sydney Kingsford Smith

Sat 5/16

9:30 am-11:50 pm

2 stops28h 20m

$1,398
Quickest round-trip

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sat 6/6

2:55 pm-7:00 am

2 stops26h 05m

Sydney Kingsford Smith

Sat 6/13

10:20 am-11:50 pm

2 stops27h 30m

$1,398

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Fri 5/1

7:30 am-6:50 am

2 stops33h 20m

Sydney Kingsford Smith

Mon 5/4

9:15 am-11:13 pm

2 stops27h 58m

$1,698

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Thu 5/14

8:40 pm-5:30 pm

2 stops54h 50m

Sydney Kingsford Smith

Mon 5/18

8:45 pm-3:55 pm

2 stops57h 10m

$2,367

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Mon 6/8

2:47 pm-7:30 am

2 stops50h 43m

Sydney Kingsford Smith

Mon 6/15

12:00 pm-4:55 am

1 stop30h 55m

$2,539

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Sorted by cheapest first

Best time to book a flight from San Juan to Sydney

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

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

Currently, February is the cheapest month in which you can book a flight from San Juan to Sydney (average of $735). Flying from San Juan to Sydney in July is currently the most expensive (average of $1,568). 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 San Juan 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 April 25, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from San Juan to Sydney 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.

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from San Juan to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Sydney from San Juan?

    Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from San Juan to Sydney. You should not have trouble finding flights to Kingsford Smith from San Juan; the airport handles an average of 0 inbound flights from San Juan per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Sydney airport from San Juan. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

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

    A quick flight from San Juan to Sydney can take about 27h 35m. American Airlines provides one of the quickest options available for as low as $1,398. The distance from San Juan to Sydney is about 9907 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, United Airlines ($1,159), and American Airlines ($1,192) offers the cheapest pricing from San Juan to Sydney. These flights start at 29% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from San Juan to Sydney (average of $735). Flying from San Juan to Sydney in July is currently the most expensive (average of $1,568). 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
Parramatta
Wollongong
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from San Juan to Sydney

Discover the top 2 airlines that operate flights from San Juan 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 April 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,159Average$1,700FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,192Average$1,513FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.