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Cheap flights from Ireland to Puerto Rico from £405

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
12 Apr — 19 Apr1
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 13 March 2026.

Thu 23/410:40
DUB
-
SJU
1 stop20h 59m
JetBlue
Fri 8/518:45
SJU
-
DUB
1 stop32h 35m
JetBlue
Deal found 8/3£405
Thu 23/410:40
DUB
-
SJU
1 stop20h 59m
JetBlue
Thu 7/518:45
SJU
-
DUB
1 stop32h 35m
JetBlue
Deal found 10/3£420
Wed 22/410:40
DUB
-
SJU
1 stop16h 32m
JetBlue
Wed 29/410:00
SJU
-
DUB
1 stop18h 00m
JetBlue
Deal found 8/3£473
Wed 8/412:40
DUB
-
SJU
1 stop14h 25m
British Airways
Fri 24/410:03
SJU
-
DUB
2 stops18h 37m
British Airways
Deal found 9/3£533
Fri 10/409:30
DUB
-
SJU
1 stop18h 32m
Finnair
Sat 18/406:45
SJU
-
DUB
1 stop22h 00m
Finnair
Deal found 8/3£533
Thu 23/408:35
DUB
-
SJU
2 stops17h 49m
British Airways
Fri 8/513:25
SJU
-
DUB
1 stop12h 05m
British Airways
Deal found 8/3£545
Wed 8/408:35
DUB
-
SJU
2 stops18h 30m
British Airways
Mon 20/411:43
SJU
-
DUB
2 stops16h 57m
British Airways
Deal found 8/3£551
Thu 30/412:40
DUB
-
SJU
1 stop14h 25m
British Airways
Wed 13/515:44
SJU
-
DUB
2 stops17h 51m
British Airways
Deal found 9/3£559
Thu 9/408:35
DUB
-
SJU
2 stops17h 49m
British Airways
Sat 18/413:25
SJU
-
DUB
1 stop12h 05m
British Airways
Deal found 8/3£562

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 13 March 2026.

Round-trip from

£405

Popular in

December

Cheapest in

May

Average price

£582
JetBlue
  • JetBlue
  • 23/4-8/5
  • 2 total stops
  • 53h 34m total
  • Ireland to Puerto Rico
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 13 March 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

Thu 23/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Thu 30/4

11:43-09:40

2 stops16h 57m

£533

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 14/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Tue 21/4

11:43-09:40

2 stops16h 57m

£533

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 23/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Thu 7/5

11:43-09:40

2 stops16h 57m

£557

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Fri 24/4

10:03-09:40

2 stops18h 37m

£557

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 3/5

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Tue 19/5

11:43-09:40

2 stops16h 57m

£558

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Tue 12/5

11:43-09:40

2 stops16h 57m

£558

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

11:10-23:59

2 stops17h 49m

San Juan Luis Munoz Marin Intl

Tue 12/5

07:05-09:15

1 stop21h 10m

£612

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 13/5

06:30-22:05

2 stops20h 35m

San Juan Luis Munoz Marin Intl

Sun 17/5

15:44-14:50

2 stops18h 06m

£621

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 24/3

10:45-11:46

2 stops29h 01m

San Juan Luis Munoz Marin Intl

Sat 28/3

17:30-07:45

1 stop34h 15m

£625
Cheapest one-way
Fastest single journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 6/5

10:40-22:12

1 stop16h 32m

£426

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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 £416). Flying from Ireland to Puerto Rico in September is currently the most expensive (average of £605). 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 14h 25m. Fly via British Airways 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 £416). Flying from Ireland to Puerto Rico in September is currently the most expensive (average of £605). 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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Birmingham to Montego Bay flights
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London City to Castries flights
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Gatwick to Willemstad flights
Gatwick to Luis Munoz Marin Intl flights
Stansted to Luis Munoz Marin Intl flights
Gatwick to Havana flights
Manchester to Montego Bay flights
London City to Luis Munoz Marin Intl flights
Heathrow to Santiago de los Caballeros 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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