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Cheap flights from Ireland to San Juan from €331

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to San Juan departing on 18/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ireland to San Juan

Recent return flight deals from Ireland to San Juan

Enter your travel dates to find the best prices.
JetBlue Logo
10:40 - 22:27DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
16h 47m1 stop Boston Logan Intl
JetBlue Logo
06:00 - 08:20SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
21h 20m1 stop Boston Logan Intl
€609JetBlue
Fri, 25 Sep - Fri, 2 Oct
JetBlue Logo
11:30 - 19:34DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 04m1 stop New York John F Kennedy Intl
JetBlue Logo
18:55 - 08:20SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
32h 25m1 stop Boston Logan Intl
€638JetBlue
Wed, 23 Sep - Fri, 2 Oct
JetBlue Logo
11:30 - 16:12DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 42m1 stop New York John F Kennedy Intl
JetBlue Logo
10:30 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
17h 30m1 stop New York John F Kennedy Intl
€639JetBlue
Tue, 22 Sep - Sat, 3 Oct
Multiple Airlines Logo
09:50 - 18:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 55m1 stop Madrid Barajas
Multiple Airlines Logo
11:51 - 09:40SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
16h 49m2 stops Miami London Heathrow
€639Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
JetBlue Logo
11:30 - 16:12DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 42m1 stop New York John F Kennedy Intl
JetBlue Logo
06:00 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
22h 00m1 stop New York John F Kennedy Intl
€642JetBlue
Fri, 25 Sep - Sat, 10 Oct
Multiple Airlines Logo
12:40 - 14:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
31h 05m1 stop Dallas/Fort Worth
Multiple Airlines Logo
06:30 - 06:30SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
19h 00m2 stops Miami Philadelphia
€650Multiple Airlines
Fri, 25 Sep - Sat, 10 Oct
Finnair Logo
12:40 - 14:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
31h 05m1 stop Dallas/Fort Worth
Finnair Logo
16:19 - 09:45SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
36h 26m1 stop Dallas/Fort Worth
€651Finnair
Thu, 24 Sep - Thu, 1 Oct
American Airlines Logo
11:45 - 23:59DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
17h 14m1 stop Charlotte Douglas
American Airlines Logo
16:38 - 06:30SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
32h 52m2 stops Miami Philadelphia
€660American Airlines
Mon, 7 Sep - Sun, 13 Sep
American Airlines Logo
09:30 - 13:32DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 02m1 stop Philadelphia
American Airlines Logo
14:22 - 06:30SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
35h 08m1 stop Philadelphia
€660American Airlines
Tue, 15 Sep - Tue, 29 Sep
American Airlines Logo
09:30 - 13:32DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 02m1 stop Philadelphia
American Airlines Logo
12:41 - 09:35SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
15h 54m1 stop Charlotte Douglas
€660American Airlines
Fri, 25 Sep - Thu, 8 Oct

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British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
7 Sept
DUB08:40Dublin
18h 15m
2 stops
SJU21:55San Juan Luis Munoz Marin Intl
13 Sept
SJU11:51San Juan Luis Munoz Marin Intl
16h 49m
2 stops
DUB09:40Dublin
€722
British Airways
1 Sept
DUB08:40Dublin
18h 15m
2 stops
SJU21:55San Juan Luis Munoz Marin Intl
7 Sept
SJU07:03San Juan Luis Munoz Marin Intl
18h 27m
1 stop
DUB06:30Dublin
€734
British Airways
3 Dec
DUB11:30Dublin
16h 29m
1 stop
SJU23:59San Juan Luis Munoz Marin Intl
16 Dec
SJU11:34San Juan Luis Munoz Marin Intl
18h 06m
2 stops
DUB09:40Dublin
€736

American Airlines flights from Ireland to San Juan

Our best American Airlines deals on Ireland to San Juan flight tickets
American Airlines
7 Sept
DUB11:45Dublin
32h 06m
1 stop
SJU14:51San Juan Luis Munoz Marin Intl
13 Sept
SJU06:00San Juan Luis Munoz Marin Intl
19h 30m
2 stops
DUB06:30Dublin
€660
American Airlines
2 Oct
DUB09:30Dublin
33h 02m
1 stop
SJU13:32San Juan Luis Munoz Marin Intl
15 Oct
SJU10:36San Juan Luis Munoz Marin Intl
14h 54m
2 stops
DUB06:30Dublin
€661
American Airlines
5 Sept
DUB09:50Dublin
13h 55m
1 stop
SJU18:45San Juan Luis Munoz Marin Intl
12 Sept
SJU15:41San Juan Luis Munoz Marin Intl
12h 54m
1 stop
DUB09:35Dublin
€665

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 12 August 2026.
Use the filters below to find and compare flights from Ireland to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

10:40-22:27

1 stop16h 47m

San Juan Luis Munoz Marin Intl

Fri 2/10

06:00-08:20

1 stop21h 20m

€609

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 23/9

11:30-19:34

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Fri 2/10

18:55-08:20

1 stop32h 25m

€638

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 22/9

11:30-16:12

1 stop33h 42m

San Juan Luis Munoz Marin Intl

Sat 3/10

10:30-09:00

1 stop17h 30m

€639
Fastest return journey

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Sat 5/9

09:50-18:45

1 stop13h 55m

San Juan Luis Munoz Marin Intl

Sat 12/9

11:51-09:40

2 stops16h 49m

€639

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

11:30-16:12

1 stop33h 42m

San Juan Luis Munoz Marin Intl

Sat 10/10

06:00-09:00

1 stop22h 00m

€642

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

12:40-14:45

1 stop31h 05m

San Juan Luis Munoz Marin Intl

Sat 10/10

06:30-06:30

2 stops19h 00m

€650

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Thu 24/9

12:40-14:45

1 stop31h 05m

San Juan Luis Munoz Marin Intl

Thu 1/10

16:19-09:45

1 stop36h 26m

€651

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Mon 7/9

11:45-23:59

1 stop17h 14m

San Juan Luis Munoz Marin Intl

Sun 13/9

16:38-06:30

2 stops32h 52m

€660

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 15/9

09:30-13:32

1 stop33h 02m

San Juan Luis Munoz Marin Intl

Tue 29/9

14:22-06:30

1 stop35h 08m

€660

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

09:30-13:32

1 stop33h 02m

San Juan Luis Munoz Marin Intl

Thu 8/10

12:41-09:35

1 stop15h 54m

€660

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Ireland to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan?

The cheapest month to fly to San Juan from Ireland is in May. Flight prices, which tend to average around €552, are often lower during this time because this is during the off-season. If you are unable to visit San Juan during the month of May, then departing from Ireland during the month June is also very affordable. Most momondo users find prices during this month for around €633.

Cheap Ireland to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to San Juan

Fastest flight time

13h 04m

Direct flights

None
The fastest flight from Ireland to San Juan takes 13h 04m
There are no direct flights from Ireland to San Juan. There are no popular flight routes from Ireland to San Juan.
Search flight deals

Frequently asked questions about flying from Ireland to San Juan

  • When did momondo last update prices for flights from Ireland to San Juan?

    Prices for flights from Ireland to San Juan refresh daily.

  • How many operators does momondo search for flights from Ireland to San Juan?

  • How old do you have to be to fly from Ireland to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The necessary travel and health documents for your San Juan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ireland to San Juan

Compare and see reviews for airlines that fly from Ireland to San Juan with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom €443Free CancellationRating
7.1
3,034 reviews
Search JetBlue flights
American AirlinesPriceFrom €619Free CancellationRating
7.1
11,913 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to San Juan?

Finding the right flight to San Juan from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Ireland to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ireland to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ireland to San Juan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 11.5 km from San Juan
San Juan Luis Munoz Marin Intl Airport