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$1,230+ Cheap flights to San Juan

— SJU
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to San Juan in 2026

Enter your travel dates to find the best prices.

Cheapest flights to San Juan

Wed 28/1009:15 -
1 stop26h 09m
Sun 1/1107:40 -
2 stops34h 40m
Deal found 26/10$2,975
Mon 26/1020:30 -
2 stops33h 53m
Thu 29/1016:17 -
2 stops49h 43m
Deal found 25/10$3,404
Wed 28/1020:30 -
2 stops32h 33m
Sun 1/1106:28 -
2 stops35h 32m
Deal found 27/10$3,543
Sat 12/1209:25 -
2 stops47h 59m
Sat 19/1223:40 -
2 stops40h 10m
Deal found 28/10$4,185
Sat 12/1209:25 -
2 stops47h 59m
Sat 19/1218:50 -
3 stops57h 35m
Deal found 28/10$4,222
Sat 12/1214:05 -
1 stop25h 04m
Sat 19/1211:41 -
2 stops28h 14m
Deal found 28/10$4,820
Sat 12/1209:10 -
1 stop27h 14m
Sat 19/1207:40 -
1 stop32h 20m
Deal found 28/10$5,813

Find flight deals to San Juan

Return from

$3,623

One-way from

$1,230

Popular in

January

Cheapest in

September

Average price

$2,050
American Airlines
  • American Airlines
  • 1/1-8/1
  • 4 total stops
  • 58h 16m total
  • Sydney to San Juan
Search Deals
21/2-31/12
  • 21/2-31/12
  • 3 total stops
  • 58h 33m total
  • Sydney to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($327 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($159 potential savings vs. average return price).
Search Deals
Average for return flights in October 2026
Search Deals

Cheapflights Fare Finder

 
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 Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Sun 21/2

22:20-07:03

2 stops47h 43m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$1,276
Fastest return journey

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Sun 21/2

09:15-16:36

1 stop22h 21m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-14:00

Nonstop0h 00m

$1,347

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Fri 1/1

21:00-10:51

2 stops28h 51m

San Juan Luis Munoz Marin Intl

Fri 8/1

10:00-06:25

2 stops29h 25m

$3,624

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Fri 1/1

06:55-21:22

3 stops29h 27m

San Juan Luis Munoz Marin Intl

Fri 8/1

11:28-09:00

2 stops30h 32m

$4,667

SydneySan Juan

SYD Sydney Kingsford Smith - SJU San Juan Luis Munoz Marin Intl

SYDSJU

Sydney Kingsford Smith

Sat 12/12

19:00-09:36

3 stops29h 36m

San Juan Luis Munoz Marin Intl

Sat 19/12

10:27-08:00

3 stops30h 33m

$4,900

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Sorted by cheapest first

Best time to book a flight to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to San Juan

How long is the flight to San Juan?

On average, a flight from Sydney to San Juan takes 24 hours 54 minutes. Flights to San Juan from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to San Juan?

The most popular airline flying from Sydney to San Juan is United Airlines.

United Airlines
United Airlines
From $1,711

What are the cheapest airlines that fly to San Juan?

The cheapest airline flying from Sydney to San Juan is United Airlines.

Rainfall in San Juan by month

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 mm per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

Temperature in San Juan by month

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

Reviews of airlines servicing San Juan

Read reviews from past customers who have flown United Airlines to Puerto Rico. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,451 reviews
Check prices

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.7

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.3
Good
10,451 reviews
United Airlines
7.3
Good
10,451 reviews
Check prices

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.7

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

FAQs about flying to San Juan

  • Can I find cheaper flights to San Juan if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to San Juan on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to San Juan?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to San Juan.

  • Does San Juan Luis Munoz Marin Intl have car hire?

    Yes. Those touching down at San Juan Luis Munoz Marin Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Juan Luis Munoz Marin Intl?

    Yes. San Juan Luis Munoz Marin Intl has hotels nearby for those requiring accommodations. San Juan Airport Hotel is the closest property to San Juan Luis Munoz Marin Intl (0.0 km away from San Juan Luis Munoz Marin Intl).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Airports serving San Juan

Flights to Luis Munoz Marin Intl
Flights from Luis Munoz Marin Intl

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Yes, Cheapflights offers price alerts on San Juan flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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