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Cheap flights from Ireland to Puerto Rico from £450

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 20/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 November 2025.

Round-trip from

£484

One-way from

£450

Popular in

September

Cheapest in

May

Average price

£611
American Airlines
  • American Airlines
  • 25/3-7/4
  • 4 total stops
  • 42h 15m total
  • Ireland to Puerto Rico
Search Deals
20/3
  • 20/3
  • 1 total stop
  • 15h 10m total
  • Ireland to Puerto Rico
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 27 November 2025.

Sat 6/1211:30DUB - SJU
1 stop16h 22mMultiple Airlines
Wed 10/1216:50SJU - DUB
1 stop11h 50mMultiple Airlines
Deal found 25/11£547
Mon 22/1212:55DUB - SJU
1 stop20h 39mMultiple Airlines
Sun 18/106:30SJU - DUB
1 stop22h 10mMultiple Airlines
Deal found 25/11£620
Fri 5/1204:25DUB - SJU
2 stops26h 52mTAP AIR PORTUGAL
Wed 10/1207:10SJU - DUB
2 stops36h 10mTAP AIR PORTUGAL
Deal found 25/11£951
Sat 20/1220:40DUB - SJU
2 stops30h 59mBritish Airways
Fri 16/117:51SJU - DUB
2 stops16h 29mBritish Airways
Deal found 25/11£970
Sat 20/1210:45DUB - SJU
1 stop19h 42mKLM
Fri 16/114:15SJU - DUB
1 stop14h 30mKLM
Deal found 25/11£1,016

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 27 November 2025.
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

Thu 26/3

08:50-22:40

2 stops17h 50m

San Juan Luis Munoz Marin Intl

Sat 4/4

18:01-16:40

2 stops17h 39m

£484

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 26/3

08:50-22:40

2 stops17h 50m

San Juan Luis Munoz Marin Intl

Thu 9/4

05:40-06:30

1 stop19h 50m

£497

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 2/4

09:30-22:40

1 stop18h 10m

San Juan Luis Munoz Marin Intl

Sat 11/4

11:45-09:55

1 stop17h 10m

£500

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

12:40-10:35

1 stop26h 55m

San Juan Luis Munoz Marin Intl

Fri 24/4

06:59-09:45

1 stop21h 46m

£501

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 27/3

11:30-09:00

2 stops25h 30m

San Juan Luis Munoz Marin Intl

Mon 6/4

13:44-09:55

1 stop15h 11m

£568

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 27/3

11:30-12:18

1 stop28h 48m

San Juan Luis Munoz Marin Intl

Wed 8/4

06:15-08:45

1 stop21h 30m

£586

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 27/3

11:30-12:18

1 stop28h 48m

San Juan Luis Munoz Marin Intl

Mon 6/4

07:00-16:40

2 stops28h 40m

£587

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 28/3

06:40-23:52

2 stops21h 12m

San Juan Luis Munoz Marin Intl

Mon 6/4

15:36-15:45

2 stops19h 09m

£602

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/3

11:30-22:40

1 stop15h 10m

£450

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/3

10:00-22:40

2 stops16h 40m

£450

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 12 results
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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, April is the cheapest month in which you can book a flight from Ireland to Puerto Rico (average of £426). Flying from Ireland to Puerto Rico in September is currently the most expensive (average of £818). 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 17h 50m. 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, April is the cheapest month in which you can book a flight from Ireland to Puerto Rico (average of £426). Flying from Ireland to Puerto Rico in September is currently the most expensive (average of £818). 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
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London City to Kingston flights
Gatwick to St. John's flights
Stansted to Punta Cana flights
London City to Punta Cana flights
London City to Montego Bay flights
Heathrow to Luis Munoz Marin Intl flights
Stansted to Bridgetown flights
Gatwick to Castries flights
Gatwick to Nassau flights
Luton to Punta Cana flights
Heathrow to Kingstown flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to St. John's flights
Heathrow to Simpson Bay flights
Gatwick to St. George's flights
Heathrow to Castries flights
Charles de Gaulle to Pointe-à-Pitre flights
Gatwick to Montego Bay flights
Heathrow to Road Town flights
Heathrow to Roseau flights
Gatwick to Port of Spain flights
London City to Castries flights
Stansted to Montego Bay flights
London City to Nassau flights
Gatwick to Santo Domingo flights
Manchester to Punta Cana flights
Gatwick to Simpson Bay flights
Heathrow to George Town flights
Birmingham to Bridgetown flights
Heathrow to Santo Domingo flights
Gatwick to Road Town flights
London City to Luis Munoz Marin Intl flights
Luton to Montego Bay flights
Stansted to Kingston flights
Gatwick to Havana flights
London City to St. John's 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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