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Cheap flights from Australia to San Juan from $1,604

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to San Juan departing on 20/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Australia to San Juan

Recent return flight deals from Australia to San Juan

Enter your travel dates to find the best prices.
American Airlines Logo
11:20 - 00:16SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
27h 56m2 stops Los Angeles Los Angeles Dallas/Fort Worth
American Airlines Logo
13:58 - 09:00SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
28h 02m2 stops Charlotte Douglas Los Angeles Los Angeles
$1,604American Airlines
Wed, 20 Jan - Wed, 3 Feb
American Airlines Logo
11:20 - 23:59SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
27h 39m2 stops Los Angeles Los Angeles Miami
American Airlines Logo
06:50 - 06:55SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
33h 05m1 stop Dallas/Fort Worth
$1,674American Airlines
Wed, 20 Jan - Wed, 3 Feb
United Airlines Logo
09:15 - 21:26SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
27h 11m1 stop Houston George Bush Intcntl
United Airlines Logo
15:46 - 07:00SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
24h 14m1 stop Houston George Bush Intcntl
$1,679United Airlines
Wed, 20 Jan - Wed, 3 Feb
United Airlines Logo
09:20 - 21:26SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
27h 06m1 stop Houston George Bush Intcntl
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,679United Airlines
Tue, 8 Dec - Tue, 22 Dec
United Airlines Logo
11:20 - 22:22SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
26h 02m2 stops Los Angeles Los Angeles Washington, D.C. Dulles Intl
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,679United Airlines
Mon, 7 Dec - Tue, 22 Dec
United Airlines Logo
09:20 - 16:36SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
22h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,679United Airlines
Mon, 7 Dec - Tue, 22 Dec
United Airlines Logo
11:20 - 00:36SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
28h 16m2 stops Los Angeles Los Angeles Newark
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,679United Airlines
Tue, 8 Dec - Tue, 22 Dec
United Airlines Logo
11:50 - 13:17SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
40h 27m2 stops San Francisco Washington, D.C. Dulles Intl
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,681United Airlines
Mon, 7 Dec - Tue, 22 Dec
United Airlines Logo
09:20 - 16:36SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
22h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,681United Airlines
Mon, 7 Dec - Tue, 22 Dec
United Airlines Logo
09:20 - 21:26SYD  Sydney Kingsford Smith-SJU San Juan Luis Munoz Marin Intl
27h 06m1 stop Houston George Bush Intcntl
United Airlines Logo
06:35 - 09:05SJU  San Juan Luis Munoz Marin Intl-SYD Sydney Kingsford Smith
35h 30m2 stops Denver Intl Los Angeles Los Angeles
$1,681United Airlines
Tue, 8 Dec - Wed, 23 Dec

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American Airlines flights from Australia to San Juan

Our best American Airlines deals on Australia to San Juan flight tickets
American Airlines
20 Jan
SYD11:20Sydney Kingsford Smith
27h 56m
2 stops
SJU00:16San Juan Luis Munoz Marin Intl
3 Feb
SJU13:58San Juan Luis Munoz Marin Intl
28h 02m
2 stops
SYD09:00Sydney Kingsford Smith
$1,604
American Airlines
20 Jan
SYD11:20Sydney Kingsford Smith
27h 39m
2 stops
SJU23:59San Juan Luis Munoz Marin Intl
3 Feb
SJU06:50San Juan Luis Munoz Marin Intl
33h 05m
1 stop
SYD06:55Sydney Kingsford Smith
$1,674
American Airlines
24 Jan
SYD11:20Sydney Kingsford Smith
27h 39m
2 stops
SJU23:59San Juan Luis Munoz Marin Intl
8 Feb
SJU08:20San Juan Luis Munoz Marin Intl
31h 35m
2 stops
SYD06:55Sydney Kingsford Smith
$1,744

United Airlines flights from Australia to San Juan

Our best United Airlines deals on Australia to San Juan flight tickets
United Airlines
7 Dec
SYD11:20Sydney Kingsford Smith
26h 02m
2 stops
SJU22:22San Juan Luis Munoz Marin Intl
22 Dec
SJU06:35San Juan Luis Munoz Marin Intl
35h 30m
2 stops
SYD09:05Sydney Kingsford Smith
$1,679
United Airlines
8 Dec
SYD09:20Sydney Kingsford Smith
30h 16m
2 stops
SJU00:36San Juan Luis Munoz Marin Intl
23 Dec
SJU06:35San Juan Luis Munoz Marin Intl
35h 30m
2 stops
SYD09:05Sydney Kingsford Smith
$1,681
United Airlines
8 Dec
SYD11:20Sydney Kingsford Smith
25h 06m
2 stops
SJU21:26San Juan Luis Munoz Marin Intl
22 Jan
SJU08:10San Juan Luis Munoz Marin Intl
34h 10m
2 stops
SYD09:20Sydney Kingsford Smith
$1,749

momondo 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, momondo users made 78,305 searches. Data last updated 14 August 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 Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Wed 20/1

11:20-00:16

2 stops27h 56m

San Juan Luis Munoz Marin Intl

Wed 3/2

13:58-09:00

2 stops28h 02m

$1,604

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Wed 20/1

11:20-23:59

2 stops27h 39m

San Juan Luis Munoz Marin Intl

Wed 3/2

06:50-06:55

1 stop33h 05m

$1,674
Fastest return journey

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Wed 20/1

09:15-21:26

1 stop27h 11m

San Juan Luis Munoz Marin Intl

Wed 3/2

15:46-07:00

1 stop24h 14m

$1,679

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Tue 8/12

09:20-21:26

1 stop27h 06m

San Juan Luis Munoz Marin Intl

Tue 22/12

06:35-09:05

2 stops35h 30m

$1,679

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 7/12

11:20-22:22

2 stops26h 02m

San Juan Luis Munoz Marin Intl

Tue 22/12

06:35-09:05

2 stops35h 30m

$1,679

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 7/12

09:20-16:36

1 stop22h 16m

San Juan Luis Munoz Marin Intl

Tue 22/12

06:35-09:05

2 stops35h 30m

$1,679

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Tue 8/12

11:20-00:36

2 stops28h 16m

San Juan Luis Munoz Marin Intl

Tue 22/12

06:35-09:05

2 stops35h 30m

$1,679

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 7/12

11:50-13:17

2 stops40h 27m

San Juan Luis Munoz Marin Intl

Tue 22/12

06:35-09:05

2 stops35h 30m

$1,681

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Mon 7/12

09:20-16:36

1 stop22h 16m

San Juan Luis Munoz Marin Intl

Tue 22/12

06:35-09:05

2 stops35h 30m

$1,681

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Tue 8/12

09:20-21:26

1 stop27h 06m

San Juan Luis Munoz Marin Intl

Wed 23/12

06:35-09:05

2 stops35h 30m

$1,681

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Australia to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan?

The month of December is, on average, the cheapest month to fly to San Juan from Australia, with most prices found around $0. If you aren’t able to travel to San Juan during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,230.

Cheap Australia to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Australia to San Juan

Fastest flight time

25h 32m

Direct flights

None
The fastest flight from Australia to San Juan takes 25h 32m
There are no direct flights from Australia to San Juan. There are no popular flight routes from Australia to San Juan.
Search flight deals

Frequently asked questions about flying from Australia to San Juan

  • When did momondo last update prices for flights from Australia to San Juan?

    Prices for flights from Australia to San Juan were last updated today.

  • How many operators does momondo search for flights from Australia to San Juan?

  • How old do you have to be to fly from Australia to San Juan?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Australia to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Australia to San Juan

Compare and see reviews for airlines that fly from Australia to San Juan with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,639Free cancellationRating
7.4
10,108 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Australia to San Juan?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Australia to San Juan. momondo saves you time and could save you money on your trip.

Can I find flights from Australia to San Juan with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Juan from Australia with this policy.

How can momondo help me find flights from Australia to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Australia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Australia to San Juan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Australia and alert you when they change.

An easier way to manage your San Juan trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 11.5 km from San Juan
San Juan Luis Munoz Marin Intl Airport