Latest deals
Insights
When to book
FAQs
Price Alerts
Look for other cheap flights to San Juan

$856 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 27/8. 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.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 23:15
SYD
-
SJU
28h 05m
2 stops
American Airlines Logo
07:00 - 07:05
SJU
-
SYD
34h 05m
2 stops
$1,831American Airlines
Fri, 14 Aug - Tue, 18 Aug
American Airlines Logo
09:10 - 23:15
SYD
-
SJU
28h 05m
2 stops
American Airlines Logo
07:00 - 07:05
SJU
-
SYD
34h 05m
2 stops
$1,834American Airlines
Fri, 14 Aug - Tue, 18 Aug
American Airlines Logo
09:10 - 12:40
SYD
-
SJU
41h 30m
2 stops
American Airlines Logo
07:00 - 07:05
SJU
-
SYD
34h 05m
2 stops
$1,917American Airlines
Fri, 14 Aug - Tue, 18 Aug
United Airlines Logo
09:30 - 20:38
SYD
-
SJU
25h 08m
2 stops
United Airlines Logo
07:00 - 06:55
SJU
-
SYD
33h 55m
2 stops
$1,991United Airlines
Fri, 14 Aug - Tue, 18 Aug
United Airlines Logo
09:30 - 20:38
SYD
-
SJU
25h 08m
2 stops
United Airlines Logo
07:00 - 06:55
SJU
-
SYD
33h 55m
2 stops
$1,992United Airlines
Fri, 14 Aug - Tue, 18 Aug
American Airlines Logo
09:10 - 23:59
SYD
-
SJU
28h 49m
2 stops
American Airlines Logo
15:44 - 06:55
SJU
-
SYD
25h 11m
1 stop
$3,182American Airlines
Fri, 14 Aug - Tue, 18 Aug
American Airlines Logo
09:10 - 23:59
SYD
-
SJU
28h 49m
2 stops
American Airlines Logo
15:44 - 06:55
SJU
-
SYD
25h 11m
1 stop
$3,185American Airlines
Fri, 14 Aug - Tue, 18 Aug
Turkish Airlines Logo
21:05 - 00:10
SYD
-
SJU
65h 05m
3 stops
Turkish Airlines Logo
05:01 - 19:10
SJU
-
SYD
48h 09m
3 stops
$7,115Turkish Airlines
Fri, 14 Aug - Tue, 18 Aug
Turkish Airlines Logo
21:05 - 19:50
SYD
-
SJU
60h 45m
3 stops
Turkish Airlines Logo
05:01 - 19:10
SJU
-
SYD
48h 09m
3 stops
$7,167Turkish Airlines
Fri, 14 Aug - Tue, 18 Aug
Turkish Airlines Logo
21:05 - 19:50
SYD
-
SJU
60h 45m
3 stops
Turkish Airlines Logo
05:01 - 19:10
SJU
-
SYD
48h 09m
3 stops
$7,174Turkish Airlines
Fri, 14 Aug - Tue, 18 Aug

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 17 June 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

Fri 14/8

09:10-23:15

2 stops28h 05m

San Juan Luis Munoz Marin Intl

Tue 18/8

07:00-07:05

2 stops34h 05m

$1,831

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

09:10-23:15

2 stops28h 05m

San Juan Luis Munoz Marin Intl

Tue 18/8

07:00-07:05

2 stops34h 05m

$1,834

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

09:10-12:40

2 stops41h 30m

San Juan Luis Munoz Marin Intl

Tue 18/8

07:00-07:05

2 stops34h 05m

$1,917

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

09:30-20:38

2 stops25h 08m

San Juan Luis Munoz Marin Intl

Tue 18/8

07:00-06:55

2 stops33h 55m

$1,991

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

09:30-20:38

2 stops25h 08m

San Juan Luis Munoz Marin Intl

Tue 18/8

07:00-06:55

2 stops33h 55m

$1,992
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

09:10-23:59

2 stops28h 49m

San Juan Luis Munoz Marin Intl

Tue 18/8

15:44-06:55

1 stop25h 11m

$3,182

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

09:10-23:59

2 stops28h 49m

San Juan Luis Munoz Marin Intl

Tue 18/8

15:44-06:55

1 stop25h 11m

$3,185

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

21:05-00:10

3 stops65h 05m

San Juan Luis Munoz Marin Intl

Tue 18/8

05:01-19:10

3 stops48h 09m

$7,115

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

21:05-19:50

3 stops60h 45m

San Juan Luis Munoz Marin Intl

Tue 18/8

05:01-19:10

3 stops48h 09m

$7,167

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 14/8

21:05-19:50

3 stops60h 45m

San Juan Luis Munoz Marin Intl

Tue 18/8

05:01-19:10

3 stops48h 09m

$7,174

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 October is, on average, the cheapest month to fly to San Juan from Australia, with most prices found around $1,409. If you aren’t able to travel to San Juan during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,837.

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 SYDNEYOctober32% cheaperFlying from Sydney to San Juan costs on average just $1,409 in October
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM SYDNEYMarch54% more expensiveIt costs about $3,170 for flights to San Juan from Sydney in March
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM SYDNEYAugust700% more users visitedMore momondo users searched in flights to San Juan from Sydney in August 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

$856

Best Round-Trip Price

$1,831

Fastest flight time

27h 14m
The best one-way flight price to San Juan from Australia in the last 5 days is $856 (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 5 days is $1,831 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
Search Deals
The fastest flight to San Juan from Australia takes 27h 14m (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 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 June 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 17/7
Fri 24/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan

Popular Flights to San Juan

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to San Juan Flightsfrom $1,412