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Cheap flights from Ireland to Puerto Rico from £346

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
11 Mar — 18 Mar1
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 February 2026.

Sun 22/209:45
DUB
-
SJU
1 stop18h 13m
Delta
Sat 7/316:30
SJU
-
DUB
1 stop12h 50m
Delta
Deal found 9/2£538
Tue 28/410:40
DUB
-
SJU
1 stop16h 32m
JetBlue
Tue 12/512:00
SJU
-
DUB
1 stop16h 00m
JetBlue
Deal found 7/2£569
Sun 22/207:35
DUB
-
SJU
2 stops17h 59m
British Airways
Sat 7/306:00
SJU
-
DUB
1 stop22h 40m
British Airways
Deal found 9/2£583
Wed 8/410:00
DUB
-
SJU
2 stops18h 15m
Delta
Fri 24/406:15
SJU
-
DUB
2 stops22h 00m
Delta
Deal found 7/2£585
Wed 8/411:10
DUB
-
SJU
2 stops17h 49m
Multiple Airlines
Fri 24/417:42
SJU
-
DUB
1 stop34h 33m
Multiple Airlines
Deal found 6/2£588
Wed 8/408:40
DUB
-
SJU
2 stops18h 25m
British Airways
Fri 24/413:25
SJU
-
DUB
2 stops15h 50m
British Airways
Deal found 6/2£591
Tue 28/406:30
DUB
-
SJU
2 stops20h 35m
British Airways
Tue 12/513:25
SJU
-
DUB
1 stop12h 05m
British Airways
Deal found 7/2£602

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 February 2026.

Round-trip from

£538

One-way from

£346

Popular in

December

Cheapest in

June

Average price

£749
Delta
  • Delta
  • 22/2-7/3
  • 2 total stops
  • 31h 03m total
  • Ireland to Puerto Rico
Search Deals
JetBlue
  • JetBlue
  • 6/5
  • 1 total stop
  • 16h 32m total
  • Ireland to Puerto Rico
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 February 2026.
Use the filters below to find and compare flights from Ireland to Puerto Rico that are best for you.

Fly from

Ireland

Fly to

Puerto Rico

Route

Depart

Return

Price

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 22/2

09:45-23:58

1 stop18h 13m

San Juan Luis Munoz Marin Intl

Sat 7/3

16:30-09:20

1 stop12h 50m

£538

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 28/4

10:40-22:12

1 stop16h 32m

San Juan Luis Munoz Marin Intl

Tue 12/5

12:00-09:00

1 stop16h 00m

£569

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 22/2

07:35-21:34

2 stops17h 59m

San Juan Luis Munoz Marin Intl

Sat 7/3

06:00-08:40

1 stop22h 40m

£583

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

10:00-23:15

2 stops18h 15m

San Juan Luis Munoz Marin Intl

Fri 24/4

06:15-09:15

2 stops22h 00m

£585

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

11:10-23:59

2 stops17h 49m

San Juan Luis Munoz Marin Intl

Fri 24/4

17:42-09:15

1 stop34h 33m

£588

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

08:40-22:05

2 stops18h 25m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:25-10:15

2 stops15h 50m

£591

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 29/4

06:30-22:05

2 stops20h 35m

San Juan Luis Munoz Marin Intl

Wed 13/5

11:43-09:40

2 stops16h 57m

£593

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 6/5

10:40-22:12

1 stop16h 32m

£346

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 6/5

12:15-02:07

2 stops42h 52m

£444

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 12/6

12:15-01:59

2 stops18h 44m

£446

Flights are sorted by cheapest return flights first.

Deals found on 7/2

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 £428). Flying from Ireland to Puerto Rico in February is currently the most expensive (average of £599). 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.

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 18h 13m. Fly via Delta to get the fastest option. The distance between Ireland and Puerto Rico is about 3963 mi.

  • 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 £428). Flying from Ireland to Puerto Rico in February is currently the most expensive (average of £599). 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.
Heathrow to Bridgetown flights
Heathrow to Montego Bay flights
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Heathrow to St. George's flights
Stansted to Montego Bay flights
Heathrow to Nassau flights
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Stansted to Bridgetown flights
Gatwick to St. John's flights
Gatwick to Montego Bay flights
London City to Montego Bay flights
Heathrow to St. John's flights
Manchester to Bridgetown flights
Stansted to Punta Cana flights
Heathrow to Luis Munoz Marin Intl flights
Stansted to Kingston flights
Heathrow to Castries flights
Gatwick to Castries flights
Luton to Punta Cana flights
Gatwick to Luis Munoz Marin Intl flights
London City to Punta Cana flights
Heathrow to Kingstown flights
Luton to Montego Bay flights
Heathrow to Willemstad flights
Heathrow to Port of Spain flights
Stansted to Luis Munoz Marin Intl flights
Gatwick to St. George's flights
Gatwick to Willemstad flights
London City to Luis Munoz Marin Intl flights
Gatwick to Port of Spain flights
Heathrow to Santo Domingo flights
Gatwick to Havana flights
Heathrow to Pointe-à-Pitre flights
Gatwick to Santo Domingo flights
Gatwick to Nassau flights
Heathrow to Oranjestad flights
Birmingham to Montego Bay flights
London City to St. John's flights
Heathrow to George Town flights
Heathrow to Roseau flights
Heathrow to Basseterre flights
Gatwick to Pointe-à-Pitre flights
Heathrow to Castries 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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