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Cheap flights from Ireland to Puerto Rico from £445

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
8 Jun — 15 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Puerto Rico

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Puerto Rico
Explore the most affordable flight options available from Ireland to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 May 2026.

Thu 2/711:30
DUB
-
SJU
1 stop16h 01m
JetBlue
Thu 9/719:50
SJU
-
DUB
1 stop32h 10m
JetBlue
Deal found 5/5£453
Thu 4/610:40
DUB
-
SJU
1 stop16h 02m
JetBlue
Thu 11/615:29
SJU
-
DUB
1 stop12h 31m
JetBlue
Deal found 6/5£498
Wed 17/611:30
DUB
-
SJU
1 stop15h 15m
JetBlue
Wed 24/613:12
SJU
-
DUB
1 stop14h 48m
JetBlue
Deal found 5/5£504
Fri 19/611:30
DUB
-
SJU
1 stop16h 16m
JetBlue
Fri 26/611:50
SJU
-
DUB
1 stop16h 10m
JetBlue
Deal found 5/5£521
Sun 7/611:30
DUB
-
SJU
1 stop16h 23m
JetBlue
Fri 19/615:24
SJU
-
DUB
1 stop12h 36m
JetBlue
Deal found 7/5£527
Thu 28/511:00
DUB
-
SJU
1 stop16h 17m
Delta
Sat 6/613:14
SJU
-
DUB
2 stops15h 46m
Delta
Deal found 6/5£538
Thu 21/511:00
DUB
-
SJU
1 stop14h 30m
Delta
Sun 24/514:48
SJU
-
DUB
1 stop12h 57m
Delta
Deal found 7/5£540
Wed 17/609:15
DUB
-
SJU
2 stops19h 28m
Multiple Airlines
Wed 24/613:10
SJU
-
DUB
1 stop15h 05m
Multiple Airlines
Deal found 5/5£543
Thu 21/511:00
DUB
-
SJU
1 stop16h 17m
KLM
Wed 3/613:16
SJU
-
DUB
2 stops16h 09m
KLM
Deal found 6/5£545
Sat 31/1018:35
DUB
-
SJU
1 stop26h 05m
Multiple Airlines
Wed 2/1212:49
SJU
-
DUB
2 stops16h 51m
Multiple Airlines
Deal found 6/5£562
Wed 17/609:50
DUB
-
SJU
1 stop14h 00m
Multiple Airlines
Mon 22/611:56
SJU
-
DUB
2 stops16h 44m
Multiple Airlines
Deal found 4/5£564
Tue 1/908:35
DUB
-
SJU
2 stops18h 49m
British Airways
Mon 7/906:51
SJU
-
DUB
1 stop18h 39m
British Airways
Deal found 8/5£584

Find flight deals from Ireland to Puerto Rico

Keep the following information in mind while searching for Ireland to Puerto Rico flight deals. Data was last updated 9 May 2026.

Round-trip from

£453

One-way from

£445

Popular in

July

Cheapest in

May

Average price

£468
JetBlue
  • JetBlue
  • 2/7-9/7
  • 2 total stops
  • 48h 11m total
  • Ireland to Puerto Rico
Search Deals
JetBlue
  • JetBlue
  • 1/8
  • 1 total stop
  • 18h 09m total
  • Ireland to Puerto Rico
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 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 Ireland to Puerto Rico 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 9 May 2026.
Use the filters below to find and compare flights from Ireland to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 17/6

11:30-21:45

1 stop15h 15m

San Juan Luis Munoz Marin Intl

Wed 24/6

13:12-09:00

1 stop14h 48m

£504

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 19/6

11:30-22:46

1 stop16h 16m

San Juan Luis Munoz Marin Intl

Fri 26/6

11:50-09:00

1 stop16h 10m

£521

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 21/5

11:00-22:17

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Wed 3/6

13:16-10:25

2 stops16h 09m

£545

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 31/10

18:35-16:40

1 stop26h 05m

San Juan Luis Munoz Marin Intl

Wed 2/12

12:49-09:40

2 stops16h 51m

£562

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 1/9

08:35-22:24

2 stops18h 49m

San Juan Luis Munoz Marin Intl

Mon 7/9

06:51-06:30

1 stop18h 39m

£584

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 17/6

08:35-23:00

2 stops19h 25m

San Juan Luis Munoz Marin Intl

Mon 22/6

11:56-09:40

2 stops16h 44m

£590

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 31/10

07:35-00:05

2 stops20h 30m

San Juan Luis Munoz Marin Intl

Wed 2/12

12:49-09:40

2 stops16h 51m

£593

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 1/9

11:30-22:39

1 stop16h 09m

San Juan Luis Munoz Marin Intl

Mon 7/9

08:30-08:20

1 stop18h 50m

£601

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 7/9

13:45-22:24

1 stop13h 39m

San Juan Luis Munoz Marin Intl

Sun 13/9

12:05-09:40

2 stops16h 35m

£605
Cheapest one-way
Fastest single journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 20/9

10:40-23:58

1 stop18h 18m

£449

Flights are sorted by cheapest return flights first.

Deals found on 9/5

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

Best time to book a flight from Ireland to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Ireland 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 Ireland to Puerto Rico

What is the cheapest month to book a flight from Ireland to Puerto Rico?

Currently, May is the cheapest month in which you can book a flight from Ireland to Puerto Rico (average of £376). Flying from Ireland to Puerto Rico in September is currently the most expensive (average of £584). 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.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated 9 May 2026.
See what other customers who have flown with American Airlines from Ireland to Puerto Rico have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,669 reviews
Check prices

Comfort

7.2

Overall

7.1

Boarding

7.5

Food

6.4

Entertainment

6.9

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

PHL - LHR

A very good flight. They were not as accommodating in relation to the food and beverage options. Last year on the same flight to London, they offered an additional glass of wine beer or vodka. They also offered extra snacks and were constantly checking on us. This flight, they barely acknowledged our presence. They were not rude just not sociable or readily accessible.
American Airlines
7.1
Good
11,669 reviews
American Airlines
7.1
Good
11,669 reviews
Check prices

Comfort

7.2

Overall

7.1

Boarding

7.5

Food

6.4

Entertainment

6.9

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

PHL - LHR

A very good flight. They were not as accommodating in relation to the food and beverage options. Last year on the same flight to London, they offered an additional glass of wine beer or vodka. They also offered extra snacks and were constantly checking on us. This flight, they barely acknowledged our presence. They were not rude just not sociable or readily accessible.

Related info for your journey

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

  • How long is the flight from Ireland to Puerto Rico?

    There are many flights that can get you from Ireland to Puerto Rico in 15h 15m. Fly via JetBlue, KLM, or British Airways to get the fastest option. The distance between Ireland and Puerto Rico is about 3963 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Ireland to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Ireland to Puerto Rico flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Puerto Rico.

  • Can I find deals for business class flights from Ireland to Puerto Rico?

    Yes. Cheapflights offers flight deals from Ireland to Puerto Rico 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 Ireland to Puerto Rico?

    Currently, May is the cheapest month in which you can book a flight from Ireland to Puerto Rico (average of £376). Flying from Ireland to Puerto Rico in September is currently the most expensive (average of £584). 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 Ireland to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ireland to Puerto Rico

Discover the top airline that operate flights from Ireland to Puerto Rico. 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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£571Average£686FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Puerto Rico?

Cheapflights makes it easy to find Ireland to Puerto Rico 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 Ireland to Puerto Rico?

Cheapflights helps you find that perfect flight to Puerto Rico from Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ireland to Puerto Rico with no change fees?

Yes, we can. To see specific flights from Ireland to Puerto Rico 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 from Ireland to Puerto Rico become cheaper?

Not ready to book yet? You can track prices for flights from Ireland to Puerto Rico on Cheapflights with our Price Alert feature and get notified when better prices are available.

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