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Cheap flights from Dublin to San Juan from £454

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
18 Jun — 25 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to San Juan
Explore the most affordable flight options available from Dublin to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 May 2026.

Wed 14/1011:30
DUB
-
SJU
1 stop13h 12m
JetBlue
Sun 18/1010:30
SJU
-
DUB
1 stop17h 30m
JetBlue
Deal found 18/5£480
Wed 17/610:40
DUB
-
SJU
1 stop15h 53m
JetBlue
Fri 26/615:24
SJU
-
DUB
1 stop12h 36m
JetBlue
Deal found 15/5£499
Thu 9/711:30
DUB
-
SJU
1 stop29h 55m
JetBlue
Wed 22/713:30
SJU
-
DUB
1 stop14h 30m
JetBlue
Deal found 14/5£513
Fri 12/611:30
DUB
-
SJU
1 stop17h 43m
JetBlue
Fri 19/613:12
SJU
-
DUB
1 stop14h 48m
JetBlue
Deal found 15/5£534
Fri 5/609:15
DUB
-
SJU
2 stops19h 20m
Multiple Airlines
Sat 20/613:10
SJU
-
DUB
1 stop15h 05m
Multiple Airlines
Deal found 18/5£541
Fri 29/510:40
DUB
-
SJU
1 stop16h 02m
JetBlue
Thu 4/609:52
SJU
-
DUB
1 stop18h 08m
JetBlue
Deal found 14/5£547
Wed 17/610:30
DUB
-
SJU
2 stops17h 30m
British Airways
Fri 26/613:47
SJU
-
DUB
1 stop11h 43m
British Airways
Deal found 15/5£597
Tue 1/910:40
DUB
-
SJU
1 stop15h 52m
JetBlue
Mon 7/913:30
SJU
-
DUB
1 stop14h 30m
JetBlue
Deal found 18/5£604
Fri 29/511:45
DUB
-
SJU
1 stop16h 00m
American Airlines
Thu 4/610:29
SJU
-
DUB
2 stops15h 01m
American Airlines
Deal found 14/5£620
Mon 7/909:50
DUB
-
SJU
1 stop14h 00m
Multiple Airlines
Sun 13/912:05
SJU
-
DUB
2 stops16h 35m
Multiple Airlines
Deal found 14/5£621
Wed 17/611:45
DUB
-
SJU
2 stops17h 14m
American Airlines
Fri 26/610:29
SJU
-
DUB
2 stops15h 01m
American Airlines
Deal found 15/5£639

Find flight deals from Dublin to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 May 2026.

Round-trip from

£480

One-way from

£454

Popular in

July

Cheapest in

May

Average price

£476
JetBlue
  • JetBlue
  • 14/10-18/10
  • 2 total stops
  • 30h 42m total
  • Dublin to San Juan
Search Deals
JetBlue
  • JetBlue
  • 20/9
  • 1 total stop
  • 18h 18m total
  • Dublin to San Juan
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 May 2026.
Use the filters below to find and compare flights from Dublin to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 14/10

11:30-19:42

1 stop13h 12m

San Juan Luis Munoz Marin Intl

Sun 18/10

10:30-09:00

1 stop17h 30m

£480
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 17/6

10:40-21:33

1 stop15h 53m

San Juan Luis Munoz Marin Intl

Fri 26/6

15:24-09:00

1 stop12h 36m

£499

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 12/6

11:30-00:13

1 stop17h 43m

San Juan Luis Munoz Marin Intl

Fri 19/6

13:12-09:00

1 stop14h 48m

£534

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/6

09:15-23:35

2 stops19h 20m

San Juan Luis Munoz Marin Intl

Sat 20/6

13:10-09:15

1 stop15h 05m

£541

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 1/9

10:40-21:32

1 stop15h 52m

San Juan Luis Munoz Marin Intl

Mon 7/9

08:30-08:20

1 stop18h 50m

£604

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 7/9

09:50-18:50

1 stop14h 00m

San Juan Luis Munoz Marin Intl

Sun 13/9

12:05-09:40

2 stops16h 35m

£621

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 17/6

11:45-23:59

2 stops17h 14m

San Juan Luis Munoz Marin Intl

Fri 26/6

10:29-06:30

2 stops15h 01m

£639

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 25/6

10:30-23:00

2 stops17h 30m

San Juan Luis Munoz Marin Intl

Thu 9/7

10:35-09:40

2 stops18h 05m

£664

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 7/9

10:00-22:23

2 stops17h 23m

San Juan Luis Munoz Marin Intl

Sun 13/9

12:58-10:00

2 stops16h 02m

£665

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 7/9

11:00-22:23

1 stop16h 23m

San Juan Luis Munoz Marin Intl

Sun 13/9

13:30-10:45

1 stop16h 15m

£665

Flights are sorted by cheapest return flights first.

Deals found on 15/5

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

Best time to book a flight from Dublin to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Dublin 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 from Dublin to San Juan

What is the cheapest month to book a flight from Dublin to San Juan?

Currently, May is the cheapest month in which you can book a flight from Dublin to San Juan (average of £382). Flying from Dublin to San Juan in December is currently the most expensive (average of £550). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Dublin to San Juan?

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 19 May 2026.
Check out reviews from past customers who have flown with American Airlines from Dublin to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,645 reviews
Check prices

Boarding

7.5

Food

6.4

Overall

7.1

Comfort

7.2

Entertainment

6.9

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Cameron,Nov 2025

LHR - LIS

This trip was probably the worst one we have ever had on British Airways!!!
American Airlines
7.1
Good
11,645 reviews
American Airlines
7.1
Good
11,645 reviews
Check prices

Boarding

7.5

Food

6.4

Overall

7.1

Comfort

7.2

Entertainment

6.9

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Cameron,Nov 2025

LHR - LIS

This trip was probably the worst one we have ever had on British Airways!!!

Related info for your journey

Find useful and relevant information for your journey from Dublin to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dublin to San Juan?

    If you book a flight to San Juan from Dublin, you will be flying from Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 0 flights from Dublin to San Juan per day from 1 airline.

  • How long is the flight from Dublin to San Juan?

    Departing from Dublin to San Juan will take you 13h 12m. Dublin and San Juan are separated by a distance of 3963 mi.

  • What is the cheapest airline to fly from Dublin to San Juan round-trip?

    American Airlines, at £581, was found to be the cheapest airline from Dublin to San Juan.. American Airlines is priced at 3% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Dublin to San Juan that include hotel bookings?

    Yes. In addition to deals on Dublin to San Juan flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to San Juan.

  • Can I find deals for business class flights from Dublin to San Juan?

    Yes. Cheapflights offers flight deals from Dublin to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to San Juan?

    Currently, May is the cheapest month in which you can book a flight from Dublin to San Juan (average of £382). Flying from Dublin to San Juan in December is currently the most expensive (average of £550). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dublin to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Luis Munoz Marin Intl flights

Top airline flying from Dublin to San Juan

Discover the top airline that operate flights from Dublin to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 May 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£581Average£698FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Dublin to San Juan?

Cheapflights makes it easy to find Dublin to San Juan flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to San Juan.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to San Juan flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Dublin to San Juan and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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