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$1,223+ Cheap flights to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
— SJU
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to San Juan in 2026

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 8 January 2026.

Return from

$1,837

One-way from

$1,223

Popular in

February

Cheapest in

October

Average price

$2,450
Air Canada
  • Air Canada
  • 11/5-22/5
  • 4 total stops
  • 83h 37m total
  • Sydney to San Juan
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United Airlines
  • United Airlines
  • 4/3
  • 1 total stop
  • 24h 36m total
  • Sydney to San Juan
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($26 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease ($38 potential savings vs. average return price).
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Average for return flights in January 2026
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Find flight deals to San Juan

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 8 January 2026.

Mon 28/909:20SYD - SJU
2 stops44h 22mAir Canada
Wed 7/1014:55SJU - SYD
2 stops50h 25mAir Canada
Deal found 7/1$1,688
Thu 23/709:20SYD - SJU
2 stops44h 22mAir Canada
Thu 30/702:05SJU - SYD
2 stops63h 15mAir Canada
Deal found 7/1$1,738
Mon 20/709:20SYD - SJU
2 stops34h 10mAir Canada
Tue 28/702:05SJU - SYD
2 stops39h 15mAir Canada
Deal found 7/1$1,787
Mon 11/509:20SYD - SJU
2 stops44h 22mAir Canada
Fri 22/502:05SJU - SYD
2 stops39h 15mAir Canada
Deal found 7/1$1,837
Wed 4/211:50SYD - SJU
2 stops27h 46mUnited Airlines
Wed 11/208:10SJU - SYD
2 stops33h 55mUnited Airlines
Deal found 7/1$1,907
Fri 1/510:20SYD - SJU
2 stops40h 14mUnited Airlines
Sat 16/516:55SJU - SYD
2 stops48h 05mUnited Airlines
Deal found 7/1$1,981
Sun 22/211:50SYD - SJU
1 stop24h 36mUnited Airlines
Sun 1/315:46SJU - SYD
1 stop24h 14mUnited Airlines
Deal found 7/1$1,984
Fri 1/511:55SYD - SJU
3 stops34h 52mMultiple Airlines
Sat 16/507:00SJU - SYD
3 stops35h 45mMultiple Airlines
Deal found 7/1$2,060
Mon 3/809:10SYD - SJU
2 stops28h 06mAmerican Airlines
Mon 10/813:35SJU - SYD
2 stops27h 30mAmerican Airlines
Deal found 7/1$2,122
Mon 28/909:10SYD - SJU
2 stops28h 49mAmerican Airlines
Tue 6/1015:35SJU - SYD
1 stop24h 20mAmerican Airlines
Deal found 7/1$2,134
Mon 27/709:30SYD - SJU
2 stops46h 00mUnited Airlines
Wed 5/813:40SJU - SYD
2 stops27h 20mUnited Airlines
Deal found 7/1$2,149
Tue 21/709:20SYD - SJU
2 stops34h 10mAir Canada
Wed 29/702:05SJU - SYD
2 stops63h 15mAir Canada
Deal found 7/1$2,188

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 8 January 2026.
Use the filters below to find and compare flights to San Juan that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 11/5

09:20-15:42

2 stops44h 22m

San Juan Luis Munoz Marin Intl

Fri 22/5

02:05-07:20

2 stops39h 15m

$1,837

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 4/2

11:50-22:22

2 stops25h 32m

San Juan Luis Munoz Marin Intl

Wed 11/2

15:46-07:00

1 stop24h 14m

$1,907

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 11/5

09:30-20:38

2 stops25h 08m

San Juan Luis Munoz Marin Intl

Sat 23/5

13:40-06:55

3 stops51h 15m

$1,907

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 1/5

10:20-12:34

2 stops40h 14m

San Juan Luis Munoz Marin Intl

Sat 16/5

16:55-07:00

2 stops48h 05m

$1,981

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Sun 22/2

11:50-21:26

1 stop24h 36m

San Juan Luis Munoz Marin Intl

Sun 1/3

15:46-07:00

1 stop24h 14m

$1,984

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 1/7

12:00-23:16

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Thu 9/7

05:37-06:55

1 stop35h 18m

$2,483

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Fri 3/7

09:15-19:53

2 stops24h 38m

San Juan Luis Munoz Marin Intl

Sat 11/7

17:48-06:35

2 stops46h 47m

$2,489

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Tue 7/7

09:30-17:30

2 stops46h 00m

San Juan Luis Munoz Marin Intl

Wed 15/7

07:45-07:00

2 stops33h 15m

$2,563

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Mon 6/7

09:30-17:30

2 stops46h 00m

San Juan Luis Munoz Marin Intl

Wed 15/7

07:45-07:00

2 stops33h 15m

$2,563

SydneySan Juan

SYD - SJU

SYDSJU

Sydney Kingsford Smith

Wed 4/3

11:50-21:26

1 stop24h 36m

$1,223

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 12 results
1
2

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 25 hours 4 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 $1,281
Qatar Airways
Qatar Airways
From $2,681

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 8 January 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
9,139 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

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
9,139 reviews
United Airlines
7.4
Good
9,139 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

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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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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