€343 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 7/9. 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

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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

Sat, 1 Nov - Sun, 16 Nov
KLM Logo
17:20 - 23:34DUB-SJU
34h 14m2 stops
KLM Logo
14:08 - 09:20SJU-DUB
15h 12m1 stop
€602KLM
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Sat, 1 Nov - Sun, 16 Nov
 Logo
14:05 - 13:45DUB-SJU
27h 40m2 stops
 Logo
14:55 - 08:40SJU-DUB
13h 45m2 stops
€614
Find Deal
Sat, 28 Jun - Sat, 5 Jul
JetBlue Logo
11:30 - 20:05DUB-SJU
13h 35m1 stop
JetBlue Logo
18:54 - 09:00SJU-DUB
33h 06m1 stop
€631JetBlue
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Sat, 26 Jul - Sat, 2 Aug
JetBlue Logo
11:30 - 23:41DUB-SJU
17h 11m1 stop
JetBlue Logo
15:25 - 09:00SJU-DUB
12h 35m1 stop
€685JetBlue
Find Deal
Sat, 26 Jul - Sat, 2 Aug
Air France Logo
11:00 - 20:39DUB-SJU
14h 39m1 stop
Air France Logo
13:34 - 15:00SJU-DUB
20h 26m2 stops
€720Air France
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Tue, 15 Jul - Tue, 22 Jul
American Airlines Logo
09:30 - 22:50DUB-SJU
18h 20m1 stop
American Airlines Logo
07:54 - 06:30SJU-DUB
17h 36m2 stops
€727American Airlines
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Sat, 28 Jun - Sat, 5 Jul
American Airlines Logo
18:15 - 15:05DUB-SJU
25h 50m1 stop
American Airlines Logo
07:54 - 06:30SJU-DUB
17h 36m2 stops
€734American Airlines
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Tue, 15 Jul - Tue, 22 Jul
Delta Logo
10:00 - 22:23DUB-SJU
17h 23m2 stops
Delta Logo
07:30 - 07:55SJU-DUB
19h 25m2 stops
€745Delta
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Fri, 25 Jul - Fri, 1 Aug
Air France Logo
09:10 - 23:59DUB-SJU
19h 49m2 stops
Air France Logo
14:40 - 15:00SJU-DUB
19h 20m2 stops
€756Air France
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Thu, 26 Jun - Mon, 30 Jun
Delta Logo
09:10 - 23:54DUB-SJU
19h 44m2 stops
Delta Logo
18:05 - 09:15SJU-DUB
34h 10m1 stop
€760Delta
Find Deal
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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 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 €561 (return) on average. On the other hand, the most expensive months are October and December, when the average cost of round-trip tickets is €930 and €891 respectively.


Good to know

Low seasonSeptember
High seasonJuly
Cheapest flight€343
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 €721. On the other hand, the most expensive day to fly is Saturday, when return prices are €902 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.

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 2925 reviews
7.5Boarding
7.6Comfort
6.7Food
7.3Entertainment
8.0Crew
Airline reviews

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

2.0 MediocreAnonymous, May 2025MCO - BOS
Read more JetBlue reviews

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

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.

The inflight system with their wifi is a hot mess and doesn't work. Separately they do, but when you try to do theoretically simple things like pair a device for control it all falls apart

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

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.

They delayed our flight by 45 minutes and then re-updated the departure time back to normal schedule with no notification, email, or app update causing probably 40 people to miss the flight as they left without us.

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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