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$1,640+ Cheap flights to San Juan

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
— SJU
6 Apr — 13 Apr1
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
Explore the most affordable flight options available to San Juan. Find the lowest fares based on data from user searches, with prices last updated on 7 March 2026.

Fri 17/409:10
SYD
-
SJU
2 stops26h 14m
American Airlines
Fri 24/411:43
SJU
-
SYD
2 stops29h 22m
American Airlines
Deal found 3/3$1,640
Fri 17/409:30
SYD
-
SJU
2 stops25h 08m
United Airlines
Fri 24/407:40
SJU
-
SYD
2 stops33h 20m
United Airlines
Deal found 2/3$1,776
Thu 28/509:15
SYD
-
SJU
2 stops25h 15m
Delta
Mon 1/606:15
SJU
-
SYD
2 stops34h 35m
Delta
Deal found 5/3$2,217
Sun 12/409:30
SYD
-
SJU
2 stops46h 08m
United Airlines
Sat 18/416:55
SJU
-
SYD
2 stops48h 00m
United Airlines
Deal found 2/3$2,463
Thu 28/512:00
SYD
-
SJU
1 stop30h 25m
American Airlines
Mon 1/611:55
SJU
-
SYD
2 stops29h 10m
American Airlines
Deal found 5/3$2,490

Find flight deals to San Juan

Find the latest flights to San Juan in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 7 March 2026.

Return from

$1,640

Popular in

January

Cheapest in

August

Average price

$1,405
American Airlines
  • American Airlines
  • 17/4-24/4
  • 4 total stops
  • 55h 36m total
  • Sydney to San Juan
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($286 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average return price).
Search Deals
Average for return flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to San Juan that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 7 March 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 17/4

09:30-20:38

2 stops25h 08m

San Juan Luis Munoz Marin Intl

Fri 24/4

07:40-07:00

2 stops33h 20m

$1,776
Fastest return journey

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 17/4

12:00-23:02

1 stop25h 02m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:31-07:05

2 stops27h 34m

$1,786

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

12:00-04:25

1 stop30h 25m

San Juan Luis Munoz Marin Intl

Sun 31/5

00:44-06:55

1 stop40h 11m

$2,502

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 17/4

17:50-04:32

2 stops24h 42m

San Juan Luis Munoz Marin Intl

Fri 24/4

10:03-08:40

3 stops32h 37m

$3,164

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

21:05-17:33

3 stops58h 28m

San Juan Luis Munoz Marin Intl

Sun 31/5

03:05-19:10

3 stops50h 05m

$3,654

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Thu 28/5

06:25-21:59

3 stops29h 34m

San Juan Luis Munoz Marin Intl

Mon 1/6

14:56-06:55

2 stops25h 59m

$3,664

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sat 27/6

09:10-21:59

2 stops26h 49m

San Juan Luis Munoz Marin Intl

Mon 13/7

11:45-08:40

3 stops30h 55m

$3,856

Flights are sorted by cheapest return flights first.

Deals found on 2/3

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 23 hours 36 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 $1,189
Qatar Airways
Qatar Airways
From $2,642

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

Plan your trip to San Juan by taking into account the average rainfall totals 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

Plan your trip to San Juan by taking into account the average temperature totals 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

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated 7 March 2026.
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
7.4
Good
9,404 reviews
Check prices

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

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
7.4
Good
9,404 reviews
United Airlines
7.4
Good
9,404 reviews
Check prices

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

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

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Airports serving San Juan

Book a flight to or from one of these San Juan airports.
Flights to Luis Munoz Marin Intl
Flights from Luis Munoz Marin Intl

Fly with Cheapflights

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How does Cheapflights help users find flights to San Juan?

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Why should you use Cheapflights to find cheap flight tickets to San Juan?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Juan.

Can Cheapflights find flights to San Juan with no change fees?

Yes, we can. To see specific flights to San Juan with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to San Juan become cheaper?

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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