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Look for other cheap flights to San Juan

$1,665 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 19/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
11:20 - 22:31
SYD
-
SJU
26h 11m
2 stops
American Airlines Logo
15:40 - 09:00
SJU
-
SYD
26h 20m
2 stops
$1,665American Airlines
Thu, 19 Mar - Thu, 26 Mar
American Airlines Logo
11:20 - 22:31
SYD
-
SJU
26h 11m
2 stops
American Airlines Logo
06:33 - 06:55
SJU
-
SYD
33h 22m
1 stop
$1,675American Airlines
Thu, 19 Mar - Thu, 26 Mar
Lufthansa Logo
11:50 - 20:26
SYD
-
SJU
23h 36m
1 stop
Lufthansa Logo
06:40 - 07:00
SJU
-
SYD
33h 20m
1 stop
$1,710Lufthansa
Thu, 19 Mar - Thu, 26 Mar
American Airlines Logo
09:10 - 21:21
SYD
-
SJU
26h 11m
2 stops
American Airlines Logo
15:40 - 07:05
SJU
-
SYD
49h 25m
2 stops
$1,755American Airlines
Thu, 28 May - Mon, 1 Jun
American Airlines Logo
09:10 - 23:16
SYD
-
SJU
28h 06m
2 stops
American Airlines Logo
15:40 - 07:05
SJU
-
SYD
49h 25m
2 stops
$1,770American Airlines
Thu, 28 May - Mon, 1 Jun
American Airlines Logo
12:00 - 23:16
SYD
-
SJU
25h 16m
1 stop
American Airlines Logo
15:40 - 07:05
SJU
-
SYD
49h 25m
2 stops
$1,780American Airlines
Thu, 28 May - Mon, 1 Jun
Multiple Airlines Logo
17:45 - 11:49
SYD
-
SJU
33h 04m
3 stops
Multiple Airlines Logo
12:55 - 12:35
SJU
-
SYD
32h 40m
3 stops
$2,476Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
American Airlines Logo
09:10 - 09:33
SYD
-
SJU
38h 23m
2 stops
American Airlines Logo
10:23 - 07:05
SJU
-
SYD
30h 42m
2 stops
$2,559American Airlines
Thu, 28 May - Mon, 1 Jun
Air Canada Logo
09:20 - 14:44
SYD
-
SJU
43h 24m
2 stops
Air Canada Logo
01:00 - 07:20
SJU
-
SYD
40h 20m
3 stops
$2,750Air Canada
Thu, 28 May - Sun, 31 May
Multiple Airlines Logo
17:45 - 11:49
SYD
-
SJU
33h 04m
2 stops
Multiple Airlines Logo
12:55 - 12:35
SJU
-
SYD
32h 40m
3 stops
$2,811Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar

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 4 February 2026.
Use the filters below to find and compare flights to San Juan that are best for you.

Fly from

Route

Depart

Return

Price

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 19/3

11:20-22:31

2 stops26h 11m

San Juan Luis Munoz Marin Intl

Thu 26/3

15:40-09:00

2 stops26h 20m

$1,665

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 19/3

11:20-22:31

2 stops26h 11m

San Juan Luis Munoz Marin Intl

Thu 26/3

06:33-06:55

1 stop33h 22m

$1,675

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 19/3

11:50-20:26

1 stop23h 36m

San Juan Luis Munoz Marin Intl

Thu 26/3

06:40-07:00

1 stop33h 20m

$1,710

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

09:10-21:21

2 stops26h 11m

San Juan Luis Munoz Marin Intl

Mon 1/6

15:40-07:05

2 stops49h 25m

$1,755

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

09:10-23:16

2 stops28h 06m

San Juan Luis Munoz Marin Intl

Mon 1/6

15:40-07:05

2 stops49h 25m

$1,770

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

12:00-23:16

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Mon 1/6

15:40-07:05

2 stops49h 25m

$1,780

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 19/3

17:45-11:49

3 stops33h 04m

San Juan Luis Munoz Marin Intl

Thu 26/3

12:55-12:35

3 stops32h 40m

$2,476

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

09:10-09:33

2 stops38h 23m

San Juan Luis Munoz Marin Intl

Mon 1/6

10:23-07:05

2 stops30h 42m

$2,559

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

09:20-14:44

2 stops43h 24m

San Juan Luis Munoz Marin Intl

Sun 31/5

01:00-07:20

3 stops40h 20m

$2,750

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 19/3

17:45-11:49

2 stops33h 04m

San Juan Luis Munoz Marin Intl

Thu 26/3

12:55-12:35

3 stops32h 40m

$2,811

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to San Juan from

San Juan flights insights and trends

Explore insights for your San Juan flight to craft the best travel plan

What is the cheapest month to fly to San Juan?

The month of March is, on average, the cheapest month to fly to San Juan from Australia, with most prices found around $1,408. If you aren’t able to travel to San Juan during the month of March, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,491.

Cheapest flights to San Juan

Find the cheapest flights to San Juan from your nearest city or airport
Find flights from Sydney to San Juan Luis Munoz Marin Intl Airport
CHEAPEST MONTH TO FLY TO SAN JUAN FROM SYDNEYMarch32% cheaperFlying from Sydney to San Juan costs on average just $1,408 in March
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM SYDNEYFebruary18% more expensiveIt costs about $2,430 for flights to San Juan from Sydney in February
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM SYDNEYNovember900% more users visitedMore momondo users searched in flights to San Juan from Sydney in November than any other month

Cheap San Juan flight deals and tips

Summary info about San Juan flight prices, duration and airlines

Best Round-Trip Price

$1,665

Fastest flight time

26h 11m
The best round-trip flight price to San Juan from Australia in the last 72 hours is $1,665 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
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The fastest flight to San Juan from Australia takes 26h 11m (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 Santurce?

Yes, you can get a flight ticket to San Juan Luis Munoz Marin Intl if you want to reach Santurce. It is the nearest San Juan airport (5.2 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 25h 08m 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 February 2026, there are 3 operators 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 $1,185