€265 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 13/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Puerto Rico

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights 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

Fri, 12 Sep - Tue, 16 Sep
American Airlines Logo
08:35 - 23:37DUB-SJU
20h 02m2 stops
American Airlines Logo
16:43 - 05:30SJU-DUB
31h 47m1 stop
€563American Airlines
Find Deal
Fri, 12 Sep - Tue, 16 Sep
American Airlines Logo
11:45 - 15:52DUB-SJU
33h 07m1 stop
American Airlines Logo
16:43 - 05:30SJU-DUB
31h 47m1 stop
€564American Airlines
Find Deal
Fri, 12 Sep - Tue, 16 Sep
JetBlue Logo
11:30 - 21:24DUB-SJU
14h 54m1 stop
JetBlue Logo
12:50 - 08:20SJU-DUB
14h 30m1 stop
€589JetBlue
Find Deal
Fri, 12 Sep - Tue, 16 Sep
Delta Logo
11:10 - 12:03DUB-SJU
29h 53m2 stops
Delta Logo
17:24 - 15:00SJU-DUB
16h 36m2 stops
€603Delta
Find Deal
Fri, 12 Sep - Tue, 16 Sep
Delta Logo
08:55 - 22:42DUB-SJU
18h 47m2 stops
Delta Logo
14:28 - 15:00SJU-DUB
19h 32m2 stops
€608Delta
Find Deal
Thu, 10 Jul - Wed, 13 Aug
United Airlines Logo
09:20 - 00:02DUB-SJU
19h 42m2 stops
United Airlines Logo
16:55 - 07:10SJU-DUB
33h 15m1 stop
€624United Airlines
Find Deal
Fri, 8 Aug - Fri, 15 Aug
Lufthansa Logo
13:35 - 23:57DUB-SJU
15h 22m1 stop
Lufthansa Logo
07:00 - 16:55SJU-DUB
28h 55m2 stops
€625Lufthansa
Find Deal
Thu, 10 Jul - Wed, 13 Aug
United Airlines Logo
09:20 - 00:02DUB-SJU
19h 42m2 stops
United Airlines Logo
16:55 - 07:10SJU-DUB
33h 15m1 stop
€629United Airlines
Find Deal
Tue, 22 Jul - Mon, 28 Jul
JetBlue Logo
11:30 - 19:35DUB-SJU
13h 05m1 stop
JetBlue Logo
03:05 - 08:20SJU-DUB
24h 15m1 stop
€639JetBlue
Find Deal
Fri, 8 Aug - Fri, 15 Aug
Lufthansa Logo
05:55 - 23:57DUB-SJU
23h 02m2 stops
Lufthansa Logo
07:00 - 16:55SJU-DUB
28h 55m2 stops
€773Lufthansa
Find Deal
Useful Info

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 April, when tickets cost €554 (return) on average. On the other hand, the most expensive months are October and December, when the average cost of round-trip tickets is €919 and €880 respectively.


Good to know

Low seasonSeptember
High seasonJuly
Cheapest flight€265
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly (21% more expensive 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 €712. On the other hand, the most expensive day to fly is Saturday, when return prices are €891 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 round-trip flights cost €962 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 €1,059.

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.
7.3
JetBlueOverall score based on 2922 reviews
8.0Crew
7.3Entertainment
7.6Comfort
6.7Food
7.5Boarding
Airline reviews

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

10.0 ExcellentPaul, Jun 2025SEA - BOS
Read more JetBlue reviews

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.

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

Very well organized both boarding and deplaning. Very satisfied with the service I received.

Flight was on time arrived at the destination 10min early they kept in touch via email

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

Little snafu at boarding. Staff communicated with gate poorly. Flight attendant was rude making disembark early. This was an older mint class. Needs an overhaul for sure. Food was good. The male flight attendant was really nice.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

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.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.