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Cheap flights from Australia to San Juan from $1,018

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SJU
4 Jun — 11 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Australia to San Juan
Explore the most affordable flight options available from Australia to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 May 2026.

Mon 4/509:10
SYD
-
SJU
2 stops26h 14m
American Airlines
Mon 11/523:59
SJU
-
SYD
2 stops41h 06m
American Airlines
Deal found 1/5$1,597
Tue 5/517:50
SYD
-
SJU
2 stops34h 30m
American Airlines
Tue 12/507:25
SJU
-
SYD
2 stops33h 40m
American Airlines
Deal found 5/5$1,617
Tue 5/509:15
SYD
-
SJU
2 stops25h 09m
Delta
Tue 12/507:30
SJU
-
SYD
2 stops33h 20m
Delta
Deal found 2/5$1,636
Mon 4/509:15
SYD
-
SJU
2 stops27h 58m
Delta
Mon 11/506:15
SJU
-
SYD
2 stops34h 35m
Delta
Deal found 3/5$1,638
Wed 6/510:20
SYD
-
SJU
2 stops25h 04m
United Airlines
Tue 12/513:40
SJU
-
SYD
2 stops51h 15m
United Airlines
Deal found 2/5$1,640
Tue 5/509:30
SYD
-
SJU
2 stops25h 54m
United Airlines
Tue 12/507:20
SJU
-
SYD
2 stops33h 40m
United Airlines
Deal found 3/5$1,642
Tue 24/1114:05
SYD
-
SJU
1 stop40h 04m
American Airlines
Sun 24/113:24
SJU
-
SYD
2 stops26h 11m
American Airlines
Deal found 4/5$1,778
Tue 8/1210:40
SYD
-
SJU
2 stops27h 40m
Delta
Tue 19/107:30
SJU
-
SYD
2 stops34h 00m
Delta
Deal found 4/5$1,782
Tue 24/1111:15
SYD
-
SJU
2 stops27h 41m
American Airlines
Fri 22/111:38
SJU
-
SYD
2 stops27h 57m
American Airlines
Deal found 4/5$1,837

Find flight deals from Australia to San Juan

Keep the following information in mind while searching for Australia to San Juan flight deals. Data was last updated 5 May 2026.

Round-trip from

$2,613

One-way from

$1,018

Popular in

March

Cheapest in

October

Average price

$2,125
United Airlines
  • United Airlines
  • 18/7-4/8
  • 4 total stops
  • 60h 44m total
  • Australia to San Juan
Search Deals
American Airlines
  • American Airlines
  • 1/6
  • 2 total stops
  • 28h 29m total
  • Australia to San Juan
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($439 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($126 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Australia 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 5 May 2026.
Use the filters below to find and compare flights from Australia 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

Sat 18/7

10:20-05:29

2 stops33h 09m

San Juan Luis Munoz Marin Intl

Tue 4/8

13:25-07:00

2 stops27h 35m

$2,613

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 24/8

10:20-23:50

2 stops27h 30m

San Juan Luis Munoz Marin Intl

Fri 28/8

16:55-07:00

2 stops72h 05m

$2,966
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 18/7

06:25-23:48

3 stops31h 23m

San Juan Luis Munoz Marin Intl

Tue 4/8

15:00-06:55

2 stops25h 55m

$2,993

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 24/8

12:00-09:43

2 stops35h 43m

San Juan Luis Munoz Marin Intl

Fri 28/8

15:44-06:55

1 stop25h 11m

$3,181

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 14/6

16:15-09:39

3 stops31h 24m

San Juan Luis Munoz Marin Intl

Sun 21/6

11:56-07:05

2 stops29h 09m

$3,463

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 14/6

12:00-04:25

1 stop30h 25m

San Juan Luis Munoz Marin Intl

Sat 20/6

00:44-06:55

1 stop40h 11m

$3,654
Cheapest one-way

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 1/6

09:10-22:45

2 stops27h 35m

$1,021

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 1/6

09:30-05:29

2 stops33h 59m

$1,037

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 9/10

10:15-21:59

2 stops26h 44m

$1,215
Fastest single journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 16/5

09:15-20:30

2 stops25h 15m

$1,343

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Australia to San Juan

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

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

Currently, October is the cheapest month in which you can book a flight from Australia to San Juan (average of $902). Flying from Australia to San Juan in December is currently the most expensive (average of $1,977). 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.

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 5 May 2026.
Check out reviews from past customers who have flown with United Airlines from Australia to San Juan 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
9,683 reviews
Check prices

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,683 reviews
United Airlines
7.4
Good
9,683 reviews
Check prices

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Australia to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    United Airlines can get you from Australia to San Juan in just under 33h 09m. Your travel time can differ by up to . The distance from Australia to San Juan is about 15944 km.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Australia to San Juan (average of $902). Flying from Australia to San Juan in December is currently the most expensive (average of $1,977). 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 Australia 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 Australia to San Juan

Discover the top airline that operate flights from Australia 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 5 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,162Average$2,166FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Australia to San Juan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Australia to San Juan.

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

Need flexible booking options for your flight to San Juan from Australia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Australia 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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