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Cheap flights from Sydney to San Juan from $1,114

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 21/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SJU
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to San Juan

Enter your travel dates to find the best prices.

Best flights from Sydney to San Juan
Discover carefully curated flight deals from Sydney to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 December 2025.

Tue 10/211:20SYD - SJU
2 stops26h 02mUnited Airlines
Sat 14/215:46SJU - SYD
2 stops47h 34mUnited Airlines
Deal found 1/12$1,582
Sun 10/509:10SYD - SJU
2 stops24h 35mAmerican Airlines
Sat 25/707:39SJU - SYD
1 stop33h 16mAmerican Airlines
Deal found 1/12$1,850
Thu 15/110:40SYD - SJU
2 stops25h 18mDelta
Thu 22/107:30SJU - SYD
2 stops34h 00mDelta
Deal found 1/12$2,105
Thu 5/211:50SYD - SJU
1 stop24h 36mUnited Airlines
Mon 9/215:46SJU - SYD
2 stops50h 19mUnited Airlines
Deal found 30/11$1,583
Sun 10/509:30SYD - SJU
2 stops28h 27mUnited Airlines
Sat 25/716:55SJU - SYD
2 stops48h 05mUnited Airlines
Deal found 1/12$1,673
Thu 15/114:05SYD - SJU
1 stop23h 21mAmerican Airlines
Thu 22/107:07SJU - SYD
1 stop32h 48mAmerican Airlines
Deal found 1/12$2,101
Thu 15/111:20SYD - SJU
2 stops25h 06mUnited Airlines
Wed 21/102:05SJU - SYD
2 stops37h 15mUnited Airlines
Deal found 1/12$2,105

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 4 December 2025.

Round-trip from

$1,582

One-way from

$1,114

Popular in

November

Cheapest in

October

Average price

$2,497
United Airlines
  • United Airlines
  • 10/2-14/2
  • 4 total stops
  • 73h 36m total
  • Sydney to San Juan
Search Deals
Air Canada
  • Air Canada
  • 21/3
  • 2 total stops
  • 41h 35m total
  • Sydney to San Juan
Search Deals
High demand for flights, 6% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 4 December 2025.
Use the filters below to find and compare flights from Sydney to San Juan that are best for you.

Fly from

Sydney

Fly to

San Juan

Route

Depart

Return

Price

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Tue 10/2

11:20-22:22

2 stops26h 02m

San Juan Luis Munoz Marin Intl

Sat 14/2

15:46-06:20

2 stops47h 34m

$1,582

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 5/2

11:50-21:26

1 stop24h 36m

San Juan Luis Munoz Marin Intl

Mon 9/2

15:46-09:05

2 stops50h 19m

$1,583

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 10/5

09:30-23:57

2 stops28h 27m

San Juan Luis Munoz Marin Intl

Sat 25/7

16:55-07:00

2 stops48h 05m

$1,673

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 10/5

09:10-19:45

2 stops24h 35m

San Juan Luis Munoz Marin Intl

Sat 25/7

07:39-06:55

1 stop33h 16m

$1,850

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 15/1

14:05-22:26

1 stop23h 21m

San Juan Luis Munoz Marin Intl

Thu 22/1

07:07-06:55

1 stop32h 48m

$2,101

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 15/1

10:40-20:58

2 stops25h 18m

San Juan Luis Munoz Marin Intl

Thu 22/1

07:30-08:30

2 stops34h 00m

$2,105

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 15/1

11:20-21:26

2 stops25h 06m

San Juan Luis Munoz Marin Intl

Wed 21/1

02:05-06:20

2 stops37h 15m

$2,105

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 21/3

19:00-14:01

3 stops58h 01m

$1,305

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

20:10-15:00

2 stops33h 50m

$2,507

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

14:00-18:25

3 stops67h 25m

$2,670

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 11 results
1
2

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

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

Currently, October is the cheapest month in which you can book a flight from Sydney to San Juan (average of $984). Flying from Sydney to San Juan in April is currently the most expensive (average of $2,342). 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.

What is the cheapest time of day to fly from SYD to SJU?

Find hourly flight availability from Sydney to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 December 2025.

One of the essential ways to save on airfare from Sydney to San Juan is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 49% on airfare.

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 4 December 2025.
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
9,063 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,063 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 26h 02m. 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 ($1,310), offers the cheapest pricing from Sydney to San Juan. You may be able to fly from Sydney to San Juan for 40% 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.

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

    Currently, October is the cheapest month in which you can book a flight from Sydney to San Juan (average of $984). Flying from Sydney to San Juan in April is currently the most expensive (average of $2,342). 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

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 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,310Average$2,306FlexibilityNo 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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