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$1,721 Cheap flights to San Juan

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to San Juan departing on 16/9. 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

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Find the cheapest flights from Australia to San Juan

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
09:10 - 20:47
SYD
-
SJU
25h 37m
2 stops
American Airlines Logo
11:51 - 07:05
SJU
-
SYD
29h 14m
2 stops
$1,721American Airlines
Wed, 16 Sep - Wed, 23 Sep
American Airlines Logo
12:00 - 15:29
SYD
-
SJU
41h 29m
1 stop
American Airlines Logo
11:51 - 07:05
SJU
-
SYD
29h 14m
2 stops
$1,805American Airlines
Wed, 16 Sep - Wed, 23 Sep
American Airlines Logo
11:20 - 00:16
SYD
-
SJU
27h 56m
2 stops
American Airlines Logo
08:25 - 06:55
SJU
-
SYD
31h 30m
2 stops
$1,842American Airlines
Thu, 5 Nov - Mon, 30 Nov
American Airlines Logo
11:20 - 22:32
SYD
-
SJU
26h 12m
2 stops
American Airlines Logo
06:28 - 06:55
SJU
-
SYD
33h 27m
1 stop
$1,842American Airlines
Thu, 5 Nov - Mon, 30 Nov
American Airlines Logo
14:05 - 00:16
SYD
-
SJU
25h 11m
1 stop
American Airlines Logo
06:28 - 06:55
SJU
-
SYD
33h 27m
1 stop
$1,919American Airlines
Thu, 5 Nov - Mon, 30 Nov
Air Canada Logo
11:20 - 14:25
SYD
-
SJU
42h 05m
2 stops
Air Canada Logo
02:05 - 09:35
SJU
-
SYD
40h 30m
3 stops
$2,412Air Canada
Thu, 5 Nov - Sun, 29 Nov
Multiple Airlines Logo
15:45 - 09:24
SYD
-
SJU
31h 39m
3 stops
Multiple Airlines Logo
11:51 - 06:55
SJU
-
SYD
29h 04m
2 stops
$2,437Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
08:45 - 21:30
SYD
-
SJU
27h 45m
3 stops
Multiple Airlines Logo
13:18 - 10:55
SJU
-
SYD
30h 37m
3 stops
$3,070Multiple Airlines
Thu, 5 Nov - Mon, 30 Nov
Multiple Airlines Logo
17:30 - 09:24
SYD
-
SJU
29h 54m
3 stops
Multiple Airlines Logo
11:51 - 08:40
SJU
-
SYD
30h 49m
3 stops
$3,287Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep

momondo Fare Finder

 
Locate flights to San Juan that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 3 August 2026.
Use the filters below to find and compare flights to San Juan that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 16/9

09:10-20:47

2 stops25h 37m

San Juan Luis Munoz Marin Intl

Wed 23/9

11:51-07:05

2 stops29h 14m

$1,721

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 16/9

12:00-15:29

1 stop41h 29m

San Juan Luis Munoz Marin Intl

Wed 23/9

11:51-07:05

2 stops29h 14m

$1,805

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 5/11

11:20-00:16

2 stops27h 56m

San Juan Luis Munoz Marin Intl

Mon 30/11

08:25-06:55

2 stops31h 30m

$1,842

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 5/11

11:20-22:32

2 stops26h 12m

San Juan Luis Munoz Marin Intl

Mon 30/11

06:28-06:55

1 stop33h 27m

$1,842

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 5/11

14:05-00:16

1 stop25h 11m

San Juan Luis Munoz Marin Intl

Mon 30/11

06:28-06:55

1 stop33h 27m

$1,919

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 5/11

11:20-14:25

2 stops42h 05m

San Juan Luis Munoz Marin Intl

Sun 29/11

02:05-09:35

3 stops40h 30m

$2,412

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 16/9

15:45-09:24

3 stops31h 39m

San Juan Luis Munoz Marin Intl

Wed 23/9

11:51-06:55

2 stops29h 04m

$2,437

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 5/11

08:45-21:30

3 stops27h 45m

San Juan Luis Munoz Marin Intl

Mon 30/11

13:18-10:55

3 stops30h 37m

$3,070

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 16/9

17:30-09:24

3 stops29h 54m

San Juan Luis Munoz Marin Intl

Wed 23/9

11:51-08:40

3 stops30h 49m

$3,287

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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Summary info about San Juan flight prices, duration and airlines

Best Round-Trip Price

$1,721

Fastest flight time

25h 37m
The best return flight price to San Juan from Australia in the last 5 days is $1,721 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
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The fastest flight to San Juan from Australia takes 25h 37m (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
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Frequently asked questions about flying to San Juan

Is there an alternative airport near San Juan?

Those flying to San Juan could potentially find better pricing at San Juan Isla Grande Airport (2 km from San Juan city centre), Ceiba J. Aponte de la Torre Airport (55 km from San Juan city centre), Ponce Mercedita Airport (70 km from San Juan city centre), Vieques Airport (75 km from San Juan city centre) or Culebra Airport (87 km from San Juan city centre) depending on the month and departure airport.

Are there flights to San Juan Antiguo?

Yes, you can get a flight ticket to San Juan Luis Munoz Marin Intl if you want to reach San Juan Antiguo. It is the nearest San Juan airport (12.5 km away).

How long does it take to fly to San Juan?

If you’re flying from a popular airport in Australia, such as Sydney Kingsford Smith or Melbourne, and flying into San Juan, then you can expect flight times to average 30h 21m and , respectively.

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

Prices for flights to San Juan are updated daily.

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

As of August 2026, there is 1 operator available to choose from for flights to San Juan.

How old do you have to be to fly to San Juan?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to San Juan.

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

The necessary travel and health documents for your San Juan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to San Juan is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

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

Flights to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to San Juan?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to San Juan.

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

Yes. momondo can track flight prices for San Juan and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular Flights to San Juan

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to San Juan Flightsfrom $2,147