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Cheap flights from Australia to San Juan from $1,638

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SJU
5 Apr — 12 Apr1
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 6 March 2026.

Fri 17/409:10
SYD
-
SJU
2 stops26h 14m
American Airlines
Fri 24/411:43
SJU
-
SYD
2 stops29h 22m
American Airlines
Deal found 3/3$1,638
Fri 17/409:30
SYD
-
SJU
2 stops25h 08m
United Airlines
Fri 24/407:40
SJU
-
SYD
2 stops33h 20m
United Airlines
Deal found 2/3$1,773
Thu 28/509:15
SYD
-
SJU
2 stops25h 15m
Delta
Mon 1/606:15
SJU
-
SYD
2 stops34h 35m
Delta
Deal found 5/3$2,214
Sun 12/409:30
SYD
-
SJU
2 stops46h 08m
United Airlines
Sat 18/416:55
SJU
-
SYD
2 stops48h 00m
United Airlines
Deal found 2/3$2,460
Mon 1/609:15
SYD
-
SJU
2 stops27h 02m
Delta
Fri 5/613:14
SJU
-
SYD
2 stops27h 36m
Delta
Deal found 1/3$2,480
Thu 28/512:00
SYD
-
SJU
1 stop30h 25m
American Airlines
Mon 1/611:55
SJU
-
SYD
2 stops29h 10m
American Airlines
Deal found 5/3$2,487

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 6 March 2026.

Round-trip from

$1,638

Popular in

January

Cheapest in

August

Average price

$1,580
American Airlines
  • American Airlines
  • 17/4-24/4
  • 4 total stops
  • 55h 36m total
  • Australia to San Juan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($482 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($54 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 6 March 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

Fri 17/4

09:30-20:38

2 stops25h 08m

San Juan Luis Munoz Marin Intl

Fri 24/4

07:40-07:00

2 stops33h 20m

$1,773
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 17/4

12:00-23:02

1 stop25h 02m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:31-07:05

2 stops27h 34m

$1,783

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 1/6

09:15-22:17

2 stops27h 02m

San Juan Luis Munoz Marin Intl

Fri 5/6

13:14-06:50

2 stops27h 36m

$2,480

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

12:00-04:25

1 stop30h 25m

San Juan Luis Munoz Marin Intl

Sun 31/5

00:44-06:55

1 stop40h 11m

$2,498

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 1/6

12:00-23:39

1 stop25h 39m

San Juan Luis Munoz Marin Intl

Thu 4/6

00:44-06:55

1 stop40h 11m

$2,702

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 17/4

17:50-04:32

2 stops24h 42m

San Juan Luis Munoz Marin Intl

Fri 24/4

10:03-08:40

3 stops32h 37m

$3,160

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

21:05-17:33

3 stops58h 28m

San Juan Luis Munoz Marin Intl

Sun 31/5

03:05-19:10

3 stops50h 05m

$3,649

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

06:25-21:59

3 stops29h 34m

San Juan Luis Munoz Marin Intl

Mon 1/6

14:56-06:55

2 stops25h 59m

$3,659

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

09:20-12:04

2 stops40h 44m

San Juan Luis Munoz Marin Intl

Sun 31/5

01:00-07:20

3 stops40h 20m

$3,800

Flights are sorted by cheapest return flights first.

Deals found on 2/3

Sorted by cheapest first

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 $921). Flying from Australia to San Juan in January is currently the most expensive (average of $2,316). 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 6 March 2026.
Check out reviews from past customers who have flown with Qatar Airways and 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.
Qatar Airways
7.4
Good
3,746 reviews
Check prices

Boarding

7.5

Food

7.3

Entertainment

7.4

Comfort

7.4

Overall

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Qatar Airways
7.4
Good
3,746 reviews
Qatar Airways
7.4
Good
3,746 reviews
Check prices

Boarding

7.5

Food

7.3

Entertainment

7.4

Comfort

7.4

Overall

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
United Airlines
7.4
Good
9,403 reviews
Qatar Airways
7.4
Good
3,746 reviews
Check prices

Boarding

7.5

Food

7.3

Entertainment

7.4

Comfort

7.4

Overall

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

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, American Airlines, and Delta can get you from Australia to San Juan in just under 25h 02m. Your travel time can differ by up to 2h. The distance from Australia to San Juan is about 15944 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 $921). Flying from Australia to San Juan in January is currently the most expensive (average of $2,316). 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 2 airlines flying from Australia to San Juan

Discover the top 2 airlines 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 6 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,188Average$2,240FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qatar AirwaysCheapest$2,639Average$3,065FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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 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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