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Look for other cheap flights to San Juan

$1,890 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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
United Airlines Logo
11:50 - 21:26SYD-SJU
24h 36m1 stop
United Airlines Logo
07:45 - 09:15SJU-SYD
34h 30m2 stops
$2,451United Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Delta Logo
10:40 - 21:58SYD-SJU
26h 18m2 stops
Delta Logo
06:15 - 06:05SJU-SYD
32h 50m2 stops
$2,612Delta
Find Deal
Sun, 8 Mar - Tue, 10 Mar
Delta Logo
10:40 - 21:58SYD-SJU
26h 18m2 stops
Delta Logo
07:30 - 07:30SJU-SYD
33h 00m2 stops
$2,632Delta
Find Deal
Sun, 8 Mar - Tue, 10 Mar
United Airlines Logo
11:50 - 20:26SYD-SJU
23h 36m1 stop
United Airlines Logo
14:46 - 07:00SJU-SYD
25h 14m1 stop
$2,677United Airlines
Find Deal
Sun, 8 Mar - Tue, 10 Mar
United Airlines Logo
10:20 - 21:22SYD-SJU
26h 02m2 stops
United Airlines Logo
14:46 - 07:00SJU-SYD
25h 14m1 stop
$2,698United Airlines
Find Deal
Sun, 8 Mar - Tue, 10 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 13 October 2025.
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

Wed 26/11

11:50-21:26

1 stop24h 36m

San Juan Luis Munoz Marin Intl

Wed 3/12

07:45-09:15

2 stops34h 30m

$2,451

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 8/3

10:40-21:58

2 stops26h 18m

San Juan Luis Munoz Marin Intl

Tue 10/3

06:15-06:05

2 stops32h 50m

$2,612

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 8/3

10:40-21:58

2 stops26h 18m

San Juan Luis Munoz Marin Intl

Tue 10/3

07:30-07:30

2 stops33h 00m

$2,632

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 8/3

11:50-20:26

1 stop23h 36m

San Juan Luis Munoz Marin Intl

Tue 10/3

14:46-07:00

1 stop25h 14m

$2,677

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 8/3

10:20-21:22

2 stops26h 02m

San Juan Luis Munoz Marin Intl

Tue 10/3

14:46-07:00

1 stop25h 14m

$2,698

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

12:10-13:17

2 stops40h 07m

$1,890

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

14:05-22:22

1 stop23h 17m

$2,280

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

14:00-18:25

3 stops67h 25m

$2,709

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

21:15-19:13

3 stops60h 58m

$4,343

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 10/1

21:15-19:13

3 stops60h 58m

$4,914

Flights are sorted by cheapest return flights first.

Sorted 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 March is, on average, the cheapest month to fly to San Juan from Australia, with most prices found around $1,523. If you aren’t able to travel to San Juan during the month of March, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,925.

What is the cheapest day to depart on your flight to San Juan?

Our data shows that Monday is the least expensive day to fly to San Juan. Tickets to fly out on this day can be as low as $2,156. Flights from Australia to San Juan on a Friday will generally be more expensive and average around $3,345. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Juan?

Our most recent data shows that the best time of day to fly to San Juan is in the morning. Flights from Australia to San Juan during this time can be as low as $2,373. Try not to purchase tickets in the afternoon because they tend to be around $3,673. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 SYDNEYMarch33% cheaperFlying from Sydney to San Juan costs on average just $1,523 in March
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM SYDNEYDecember13% more expensiveIt costs about $2,559 for flights to San Juan from Sydney in December
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM SYDNEYDecember466% more users visitedMore momondo users searched in flights to San Juan from Sydney in December 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

$1,890

Best Round-Trip Price

$2,451

Fastest flight time

23h 17m
The best one-way flight price to San Juan from Australia in the last 72 hours is $1,890 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
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The best round-trip flight price to San Juan from Australia in the last 72 hours is $2,451 (Sydney Kingsford Smith to San Juan Luis Munoz Marin Intl).
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The fastest flight to San Juan from Australia takes 23h 17m (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 26h 18m 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 October 2025, 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 $1,399