€392 Find Cheap Flights to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to Puerto Rico departing on 23/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Puerto Rico

Thu, 27 Nov - Sat, 6 Dec
Delta Logo
10:45 - 23:56DUB-SJU
17h 11m1 stop
Delta Logo
07:19 - 08:45SJU-DUB
21h 26m1 stop
€601Delta
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Thu, 15 Jan - Sat, 24 Jan
British Airways Logo
07:35 - 23:59DUB-SJU
20h 24m2 stops
British Airways Logo
17:51 - 14:15SJU-DUB
16h 24m2 stops
€604British Airways
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Wed, 14 Jan - Sat, 24 Jan
Multiple Airlines Logo
11:30 - 12:30DUB-SJU
29h 00m2 stops
Multiple Airlines Logo
06:30 - 08:40SJU-DUB
22h 10m1 stop
€620Multiple Airlines
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Mon, 15 Dec - Mon, 22 Dec
Multiple Airlines Logo
12:55 - 14:44DUB-SJU
29h 49m1 stop
Multiple Airlines Logo
07:00 - 08:40SJU-DUB
21h 40m1 stop
€622Multiple Airlines
Find Deal
Sat, 28 Mar - Tue, 7 Apr
American Airlines Logo
11:30 - 22:25DUB-SJU
14h 55m1 stop
American Airlines Logo
15:45 - 09:55SJU-DUB
13h 10m1 stop
€673American Airlines
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Wed, 1 Apr - Sun, 5 Apr
American Airlines Logo
12:40 - 03:55DUB-SJU
20h 15m1 stop
American Airlines Logo
06:54 - 09:45SJU-DUB
21h 51m1 stop
€677American Airlines
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Wed, 1 Apr - Sun, 5 Apr
KLM Logo
13:20 - 12:07DUB-SJU
27h 47m2 stops
KLM Logo
17:36 - 20:15SJU-DUB
21h 39m2 stops
€735KLM
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Thu, 15 Jan - Sat, 24 Jan
KLM Logo
10:45 - 23:44DUB-SJU
16h 59m2 stops
KLM Logo
14:19 - 12:40SJU-DUB
18h 21m2 stops
€747KLM
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Thu, 15 Jan - Fri, 23 Jan
United Airlines Logo
10:40 - 00:36DUB-SJU
17h 56m2 stops
United Airlines Logo
02:05 - 08:10SJU-DUB
26h 05m2 stops
€769United Airlines
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Sat, 14 Feb - Fri, 20 Feb
United Airlines Logo
10:40 - 21:00DUB-SJU
14h 20m1 stop
United Airlines Logo
02:05 - 08:10SJU-DUB
26h 05m2 stops
€770United Airlines
Find Deal
Booking Insights

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 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 €513 (return) on average. On the other hand, the most expensive months are September and December, when the average cost of round-trip tickets is €936 and €893 respectively.

Good to know

Low seasonSeptember
Cheapest flight€392
Best time to beat the crowds but there is an average 31% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Dublin to San Juan

FAQs - booking Puerto Rico flights

  • 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.

  • What is the cheapest day to fly to Puerto Rico?

    Based on KAYAK data, the cheapest day to fly to Puerto Rico is Monday when return tickets can be as cheap as €722. On the other hand, the most expensive day to fly is Saturday, when return prices are €904 on average.

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

    The cheapest time of day to fly to Puerto Rico is generally in the morning, when retur flights cost €834 on average. Morning departures are around 5% cheaper than evening flights, 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 €918.

Top tips for finding cheap flights to Puerto Rico

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Puerto Rico flight deals.

Reviews of the top airline flying to Puerto Rico

 
Need help choosing which airline to fly with from Ireland to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
JetBlueOverall score based on 2906 reviews
7.6Comfort
8.0Crew
6.7Food
7.4Boarding
7.3Entertainment
Airline reviews

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

2.0 MediocreAnonymous, Oct 2025FLL - DCA
Read more JetBlue reviews

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

JetBlue is always consistent and great, the food is limited in selection, but at least you can grab as much as you want on snacks and drinks at the Blue Locker.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

flight cancelled after 2 delays. left us sitting in JFK at 1am. no customer service to assist rebooking.

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

The gate and ground staff were excellent, friendly, went out of their way to acknowledge my Mosaic status. The plane was an older Airbus, so the seats were a little worn. The in flight attendant was not very nice, and seemed to be annoyed to be at work or be on this flight. Flight was fast and we landed early and pilots kept us informed.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

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.

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