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Look for other cheap flights to San Juan

$1,134 Cheap flights to San Juan

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to San Juan departing on 24/4. 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.
Multiple Airlines Logo
09:30 - 21:24
SYD
-
SJU
25h 54m
2 stops
Multiple Airlines Logo
13:25 - 07:00
SJU
-
SYD
27h 35m
2 stops
$2,354Multiple Airlines
Thu, 21 May - Thu, 28 May
American Airlines Logo
12:00 - 23:39
SYD
-
SJU
25h 39m
1 stop
American Airlines Logo
11:55 - 07:05
SJU
-
SYD
29h 10m
2 stops
$2,938American Airlines
Thu, 21 May - Thu, 28 May
United Airlines Logo
10:20 - 23:50
SYD
-
SJU
27h 30m
2 stops
United Airlines Logo
07:40 - 06:55
SJU
-
SYD
33h 15m
2 stops
$3,062United Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 23:50
SYD
-
SJU
28h 20m
2 stops
United Airlines Logo
07:20 - 06:55
SJU
-
SYD
33h 35m
2 stops
$3,063United Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 21:24
SYD
-
SJU
25h 54m
2 stops
United Airlines Logo
14:55 - 07:00
SJU
-
SYD
26h 05m
2 stops
$3,070United Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 23:50
SYD
-
SJU
28h 20m
2 stops
United Airlines Logo
07:20 - 06:55
SJU
-
SYD
33h 35m
2 stops
$3,080United Airlines
Sun, 3 May - Thu, 7 May
United Airlines Logo
09:30 - 21:24
SYD
-
SJU
25h 54m
2 stops
United Airlines Logo
14:55 - 07:00
SJU
-
SYD
26h 05m
2 stops
$3,130United Airlines
Sun, 3 May - Thu, 7 May
American Airlines Logo
12:00 - 04:25
SYD
-
SJU
30h 25m
1 stop
American Airlines Logo
05:30 - 06:55
SJU
-
SYD
35h 25m
1 stop
$3,306American Airlines
Thu, 21 May - Thu, 28 May
Multiple Airlines Logo
17:50 - 09:39
SYD
-
SJU
29h 49m
2 stops
Multiple Airlines Logo
11:55 - 10:30
SJU
-
SYD
32h 35m
3 stops
$3,388Multiple Airlines
Thu, 21 May - Thu, 28 May
American Airlines Logo
09:10 - 09:13
SYD
-
SJU
38h 03m
2 stops
American Airlines Logo
15:36 - 06:55
SJU
-
SYD
25h 19m
1 stop
$3,389American Airlines
Sun, 3 May - Thu, 7 May

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 9 April 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

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 21/5

09:30-21:24

2 stops25h 54m

San Juan Luis Munoz Marin Intl

Thu 28/5

13:25-07:00

2 stops27h 35m

$2,354

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 21/5

12:00-23:39

1 stop25h 39m

San Juan Luis Munoz Marin Intl

Thu 28/5

11:55-07:05

2 stops29h 10m

$2,938

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 3/5

10:20-23:50

2 stops27h 30m

San Juan Luis Munoz Marin Intl

Thu 7/5

07:40-06:55

2 stops33h 15m

$3,062

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 3/5

09:30-23:50

2 stops28h 20m

San Juan Luis Munoz Marin Intl

Thu 7/5

07:20-06:55

2 stops33h 35m

$3,063
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 3/5

09:30-21:24

2 stops25h 54m

San Juan Luis Munoz Marin Intl

Thu 7/5

14:55-07:00

2 stops26h 05m

$3,070

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 3/5

09:30-23:50

2 stops28h 20m

San Juan Luis Munoz Marin Intl

Thu 7/5

07:20-06:55

2 stops33h 35m

$3,080

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 3/5

09:30-21:24

2 stops25h 54m

San Juan Luis Munoz Marin Intl

Thu 7/5

14:55-07:00

2 stops26h 05m

$3,130

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 21/5

12:00-04:25

1 stop30h 25m

San Juan Luis Munoz Marin Intl

Thu 28/5

05:30-06:55

1 stop35h 25m

$3,306

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 21/5

17:50-09:39

2 stops29h 49m

San Juan Luis Munoz Marin Intl

Thu 28/5

11:55-10:30

3 stops32h 35m

$3,388

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 3/5

09:10-09:13

2 stops38h 03m

San Juan Luis Munoz Marin Intl

Thu 7/5

15:36-06:55

1 stop25h 19m

$3,389

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 October is, on average, the cheapest month to fly to San Juan from Australia, with most prices found around $1,053. If you aren’t able to travel to San Juan during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,386.

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 SYDNEYOctober50% cheaperFlying from Sydney to San Juan costs on average just $1,053 in October
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM SYDNEYMarch52% more expensiveIt costs about $3,175 for flights to San Juan from Sydney in March
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM SYDNEYMarch800% more users visitedMore momondo users searched in flights to San Juan from Sydney in March than any other month

Cheap San Juan flight deals and tips

Summary info about San Juan flight prices, duration and airlines

Best One-Way Price

$1,134

Best Round-Trip Price

$2,354

Fastest flight time

40h 22m
The best one-way flight price to San Juan from Australia in the last 72 hours is $1,134 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
Search Deals
The best round-trip flight price to San Juan from Australia in the last 72 hours is $2,354 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
Search Deals
The fastest flight to San Juan from Australia takes 40h 22m (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
Search Deals

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 28h 20m 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 April 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 $2,206