€384 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 6/5. 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, 26 Feb - Mon, 2 Mar
American Airlines Logo
11:30 - 11:56
DUB
-
SJU
28h 26m
2 stops
American Airlines Logo
17:18 - 17:05
SJU
-
DUB
19h 47m
2 stops
€547American Airlines
Thu, 26 Feb - Mon, 2 Mar
American Airlines Logo
11:30 - 23:40
DUB
-
SJU
16h 10m
1 stop
American Airlines Logo
14:30 - 08:40
SJU
-
DUB
14h 10m
1 stop
€556American Airlines
Sat, 7 Mar - Mon, 23 Mar
Multiple Airlines Logo
11:30 - 00:52
DUB
-
SJU
17h 22m
1 stop
Multiple Airlines Logo
15:40 - 17:05
SJU
-
DUB
21h 25m
2 stops
€563Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
07:40 - 19:55
DUB
-
SJU
16h 15m
1 stop
Multiple Airlines Logo
18:10 - 12:40
SJU
-
DUB
14h 30m
1 stop
€571Multiple Airlines
Sat, 7 Mar - Mon, 23 Mar
American Airlines Logo
11:30 - 00:52
DUB
-
SJU
17h 22m
1 stop
American Airlines Logo
13:30 - 08:40
SJU
-
DUB
15h 10m
1 stop
€581American Airlines
Thu, 26 Feb - Mon, 2 Mar
American Airlines Logo
11:30 - 23:40
DUB
-
SJU
16h 10m
1 stop
American Airlines Logo
08:00 - 08:40
SJU
-
DUB
20h 40m
2 stops
€601American Airlines
Wed, 8 Apr - Fri, 24 Apr
British Airways Logo
12:40 - 22:05
DUB
-
SJU
14h 25m
1 stop
British Airways Logo
11:43 - 09:40
SJU
-
DUB
16h 57m
2 stops
€609British Airways
Wed, 8 Apr - Fri, 24 Apr
American Airlines Logo
11:45 - 10:48
DUB
-
SJU
28h 03m
1 stop
American Airlines Logo
07:25 - 09:35
SJU
-
DUB
21h 10m
1 stop
€609American Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
13:25 - 16:35
DUB
-
SJU
31h 10m
2 stops
Multiple Airlines Logo
18:10 - 12:40
SJU
-
DUB
38h 30m
2 stops
€610Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
07:40 - 15:20
DUB
-
SJU
35h 40m
2 stops
Multiple Airlines Logo
11:07 - 14:05
SJU
-
DUB
22h 58m
3 stops
€621Multiple Airlines
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 €503 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is €897 and €869 respectively.

Good to know

Low seasonSeptember
Cheapest flight€384
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (7% 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.

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 airlines 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
American AirlinesOverall score based on 11192 reviews
7.5Boarding
6.4Food
8.0Crew
6.9Entertainment
7.2Comfort
Airline reviews

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

8.0 ExcellentKim, Jan 2026
ORD - PHL
Read more American Airlines reviews

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The only thing to like was that we eventually got to our destination

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

Premium economy seat was decent. As always poor headphones, poor food and beverage, crew is not overly friendly

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Very poor delay in dfw was really bad n long

The plane was broken so we had to change planes.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Qatar Airways only had spicy meals on the menu in economy class. You might want to get food in the airport before boarding.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

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

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.

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

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.