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$647+ Cheap flights from San Juan 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SYD
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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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 December 10, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/128:30 amSJU - SYD
2 stops30h 50mUnited Airlines
Sun 1/411:50 amSYD - SJU
2 stops45h 35mUnited Airlines
Deal found 12/10$1,864
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Sun 12/288:10 amSJU - SYD
2 stops33h 55mUnited Airlines
Fri 1/92:00 pmSYD - SJU
2 stops40h 40mUnited Airlines
Deal found 12/8$2,215
This American Airlines deal was found by Cheapflights users on 12/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1212:49 pmSJU - SYD
2 stops29h 11mAmerican Airlines
Sun 12/149:25 pmSYD - SJU
2 stops31h 05mAmerican Airlines
Deal found 12/8$2,549

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 December 10, 2025.

Round-trip from

$1,148
(American Airlines)

One-way from

$647
(Air Canada)

Popular in

July

Cheapest in

September

Average price

$1,712
From San Juan to Sydney Kingsford Smith
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One-way flight from San Juan to Sydney Kingsford Smith
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Highest demand for flights based on searches. 9% potential increase in price ($166 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 10, 2025.
Use the filters below to find and compare flights from San Juan to Sydney that are best for you.

Fly from

San Juan

Fly to

Sydney

Route

Depart

Return

Price

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sun 3/15

11:46 am-9:00 am

2 stops30h 14m

Sydney Kingsford Smith

Sun 3/29

6:50 pm-5:28 am

2 stops25h 38m

$1,148

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sat 2/14

10:57 am-9:00 am

2 stops31h 03m

Sydney Kingsford Smith

Wed 3/4

2:05 pm-11:32 pm

1 stop24h 27m

$1,188

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sat 5/2

4:55 pm-6:55 am

2 stops48h 00m

Sydney Kingsford Smith

Sat 5/16

10:20 am-11:50 pm

2 stops27h 30m

$1,200

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Thu 1/22

2:28 pm-9:00 am

2 stops27h 32m

Sydney Kingsford Smith

Thu 1/29

2:05 pm-10:26 pm

1 stop23h 21m

$1,248

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sat 3/14

1:05 am-9:05 am

2 stops41h 00m

Sydney Kingsford Smith

Sun 3/29

11:20 am-5:38 pm

3 stops45h 18m

$1,385

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Mon 3/2

11:59 pm-5:55 pm

2 stops50h 56m

Sydney Kingsford Smith

Mon 3/9

4:35 pm-8:56 pm

2 stops43h 21m

$1,443

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Tue 2/24

7:45 am-9:35 am

2 stops34h 50m

$647

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Mon 2/23

3:55 am-6:10 am

3 stops35h 15m

$672

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Tue 2/24

7:30 am-6:55 am

1 stop32h 25m

$732

San JuanSydney

SJU - SYD

SJUSYD

San Juan Luis Munoz Marin Intl

Sun 4/26

6:15 am-6:35 am

2 stops34h 20m

$740

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 12 results
1
2

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
No data available for this route at this time. Please check back soon.

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 December 10, 2025.
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.
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,048 reviews
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 30h 14m. American Airlines provides one of the quickest options available for as low as $1,148. The distance from San Juan to Sydney is about 9907 mi.

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

    According to our current data, American Airlines ($1,292), and United Airlines ($1,321) offers the cheapest pricing from San Juan to Sydney. These flights start at 21% 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.

See more FAQs

Traveling to a place near Sydney?

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

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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 December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,292Average$1,542FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,321Average$1,776FlexibilityNo cancel feeOn-time69%

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