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Cheap flights from Sydney to San Juan from $1,434

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 29/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SJU
24 Jul — 31 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to San Juan
Explore the most affordable flight options available from Sydney to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 June 2026.

Wed 2/909:10
SYD
-
SJU
2 stops38h 33m
American Airlines
Sun 6/915:47
SJU
-
SYD
2 stops49h 18m
American Airlines
Deal found 23/6$1,782
Sun 16/809:10
SYD
-
SJU
2 stops67h 41m
American Airlines
Wed 19/810:33
SJU
-
SYD
2 stops30h 32m
American Airlines
Deal found 22/6$1,838
Fri 25/1213:20
SYD
-
SJU
2 stops38h 57m
United Airlines
Fri 8/116:52
SJU
-
SYD
2 stops49h 13m
United Airlines
Deal found 21/6$2,921
Fri 25/1214:05
SYD
-
SJU
1 stop30h 29m
American Airlines
Fri 8/108:20
SJU
-
SYD
2 stops31h 05m
American Airlines
Deal found 21/6$3,062
Sat 19/1219:00
SYD
-
SJU
2 stops43h 26m
American Airlines
Fri 8/108:20
SJU
-
SYD
2 stops31h 05m
American Airlines
Deal found 21/6$3,615
Sat 19/1219:00
SYD
-
SJU
3 stops30h 37m
Multiple Airlines
Fri 8/114:52
SJU
-
SYD
2 stops27h 08m
Multiple Airlines
Deal found 21/6$3,832

Find flight deals from Sydney to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to San Juan (PR1). 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 24 June 2026.

Round-trip from

$1,838

One-way from

$1,434

Popular in

March

Cheapest in

September

Average price

$2,225
American Airlines
  • American Airlines
  • 16/8-19/8
  • 4 total stops
  • 98h 13m total
  • Sydney to San Juan
Search Deals
United Airlines
  • United Airlines
  • 29/6
  • 2 total stops
  • 33h 59m total
  • Sydney to San Juan
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($626 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($130 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to San Juan 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 24 June 2026.
Use the filters below to find and compare flights from Sydney to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 2/9

09:10-09:43

2 stops38h 33m

San Juan Luis Munoz Marin Intl

Sun 6/9

15:47-07:05

2 stops49h 18m

$1,782

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 16/8

09:10-14:51

2 stops67h 41m

San Juan Luis Munoz Marin Intl

Wed 19/8

10:33-07:05

2 stops30h 32m

$1,838

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 19/12

19:00-23:26

2 stops43h 26m

San Juan Luis Munoz Marin Intl

Fri 8/1

08:20-06:25

2 stops31h 05m

$3,615
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 19/12

19:00-10:37

3 stops30h 37m

San Juan Luis Munoz Marin Intl

Fri 8/1

14:52-09:00

2 stops27h 08m

$3,832

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 2/9

21:05-10:54

3 stops51h 49m

San Juan Luis Munoz Marin Intl

Sun 6/9

21:10-19:10

3 stops56h 00m

$5,065

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 16/8

21:05-00:10

3 stops41h 05m

San Juan Luis Munoz Marin Intl

Wed 19/8

21:10-19:10

3 stops80h 00m

$6,740
Cheapest one-way

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 29/6

09:30-05:29

2 stops33h 59m

$1,434

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 29/6

12:00-04:25

1 stop30h 25m

$2,248

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 19/12

19:00-11:57

3 stops31h 57m

$2,513
Fastest single journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 19/12

14:05-23:26

1 stop24h 21m

$2,890

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Sorted by cheapest first

Best time to book a flight from Sydney to San Juan

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

How much does it cost for a return flight from Sydney to San Juan?

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 Juan. Reviews last updated 24 June 2026.
Read reviews from past customers who have flown with United Airlines from Sydney to San Juan. 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.
United Airlines
7.4
Good
9,881 reviews
Check prices

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,881 reviews
United Airlines
7.4
Good
9,881 reviews
Check prices

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Sydney to San Juan. 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 from for flights from Sydney to San Juan?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to San Juan. You should not have trouble finding flights to San Juan from Kingsford Smith; the airport handles an average of 0 outbound flights to San Juan per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Sydney airport to San Juan. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

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

    Departing from Sydney to San Juan will take you 38h 33m. The distance between Sydney and San Juan is about 15944 km.

  • What is the cheapest airline to fly from Sydney to San Juan round-trip?

    According to our current data, United Airlines ($1,666), offers the cheapest pricing from Sydney to San Juan. You may be able to fly from Sydney to San Juan for 28% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to San Juan 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Luis Munoz Marin Intl flights

Top airline flying from Sydney to San Juan

Discover the top airline that operate flights from Sydney to San Juan. 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 24 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,666Average$2,333FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to San Juan?

Cheapflights makes it easy to find Sydney to San Juan flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sydney to San Juan?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Juan from Sydney.

Can Cheapflights find flights from Sydney to San Juan with no change fees?

Certainly. Search results for flights to San Juan from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Sydney to San Juan become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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