£503 Find Cheap Flights from Ireland to Puerto Rico

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KAYAK's insights & trends for flights to Puerto Rico

Get data-powered insights and trends for flights to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Puerto Rico?

The average price of all flights from Ireland to Puerto Rico clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Puerto Rico is Saturday when return tickets can be as cheap as £600. On the other hand, the most expensive day to fly is Monday, when return prices are £789 on average.

What is the cheapest month to fly from Ireland to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ireland to Puerto Rico is May, when tickets cost £465 (return) on average. On the other hand, the most expensive months are October and December, when the average cost of round-trip tickets is £826 and £799 respectively.

What is the cheapest time of day to fly to Puerto Rico?

The average price for all round-trip flights from Ireland to Puerto Rico depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Puerto Rico is generally in the morning, when round-trip flights cost £921 on average. The most expensive time of day to fly to Puerto Rico is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £973.
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Good to know - Cheap tickets from Ireland to Puerto Rico

Low season

September

High season

July

Cheapest flight

£503
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (21% more expensive on average)
Flight from Dublin to San Juan

FAQs for booking flights from Ireland to Puerto Rico

  • How does KAYAK find such low prices on flights from Ireland to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ireland to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ireland to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland to Puerto Rico is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ireland to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ireland to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ireland to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ireland to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Book cheap flights from Ireland to Puerto Rico

Cheapest flights to Puerto Rico from Ireland found in 2025

Recent return flight deals

13/6Fri
1 stopJetBlue
19h 09mDUB-SJU
20/6Fri
1 stopJetBlue
16h 20mSJU-DUB
£503
11/6Wed
1 stopJetBlue
14h 58mDUB-SJU
18/6Wed
1 stopJetBlue
15h 05mSJU-DUB
£525
13/6Fri
1 stop
22h 13mDUB-SJU
20/6Fri
2 stops
28h 20mSJU-DUB
£532
13/6Fri
2 stops
19h 14mDUB-SJU
19/6Thu
2 stops
36h 34mSJU-DUB
£637
12/6Thu
2 stopsDelta
17h 48mDUB-SJU
15/6Sun
2 stopsDelta
19h 25mSJU-DUB
£648
13/6Fri
2 stops
19h 14mDUB-SJU
19/6Thu
3 stops
37h 43mSJU-DUB
£657
13/6Fri
3 stops
34h 07mDUB-SJU
19/6Thu
3 stops
37h 43mSJU-DUB
£695
7/6Sat
2 stopsUnited Airlines
17h 04mDUB-SJU
12/6Thu
2 stopsUnited Airlines
24h 05mSJU-DUB
£766
13/6Fri
2 stopsUnited Airlines
33h 54mDUB-SJU
20/6Fri
1 stopUnited Airlines
36h 49mSJU-DUB
£771
13/6Fri
1 stopAer Lingus
17h 54mDUB-SJU
19/6Thu
1 stopAer Lingus
22h 50mSJU-DUB
£950

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Everything you need to know for your flight to Puerto Rico

Cabin class types available on flights to Puerto Rico

Cabin classes available on flights to Puerto Rico. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Puerto Rico
Business Class flights to Puerto Rico
Prem Econ Class flights to Puerto Rico
Economy class flights to Puerto Rico

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