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Cheap flights from Ireland to San Juan from €381

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 23/2. 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
0 bags

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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.
British Airways Logo
08:45 - 23:59DUB-SJU
19h 14m2 stops
British Airways Logo
07:00 - 08:40SJU-DUB
21h 40m1 stop
€616British Airways
Find Deal
Fri, 23 Jan - Sun, 25 Jan
Multiple Airlines Logo
11:30 - 23:56DUB-SJU
16h 26m1 stop
Multiple Airlines Logo
07:00 - 08:40SJU-DUB
21h 40m1 stop
€624Multiple Airlines
Find Deal
Fri, 23 Jan - Sun, 25 Jan
Multiple Airlines Logo
11:30 - 10:48DUB-SJU
27h 18m2 stops
Multiple Airlines Logo
13:58 - 08:40SJU-DUB
14h 42m2 stops
€629Multiple Airlines
Find Deal
Fri, 23 Jan - Sun, 25 Jan
British Airways Logo
08:50 - 00:10DUB-SJU
20h 20m2 stops
British Airways Logo
13:45 - 10:15SJU-DUB
15h 30m2 stops
€654British Airways
Find Deal
Wed, 8 Apr - Fri, 24 Apr
British Airways Logo
09:30 - 00:10DUB-SJU
19h 40m1 stop
British Airways Logo
13:45 - 10:15SJU-DUB
15h 30m2 stops
€656British Airways
Find Deal
Wed, 8 Apr - Fri, 24 Apr
British Airways Logo
09:30 - 00:10DUB-SJU
19h 40m1 stop
British Airways Logo
13:45 - 11:15SJU-DUB
16h 30m2 stops
€658British Airways
Find Deal
Wed, 8 Apr - Fri, 24 Apr
American Airlines Logo
12:40 - 10:40DUB-SJU
27h 00m1 stop
American Airlines Logo
06:54 - 09:45SJU-DUB
21h 51m1 stop
€671American Airlines
Find Deal
Wed, 1 Apr - Sun, 5 Apr
American Airlines Logo
12:40 - 10:40DUB-SJU
27h 00m1 stop
American Airlines Logo
05:35 - 06:30SJU-DUB
19h 55m1 stop
€672American Airlines
Find Deal
Wed, 1 Apr - Sun, 5 Apr
American Airlines Logo
09:30 - 12:15DUB-SJU
31h 45m1 stop
American Airlines Logo
13:40 - 06:30SJU-DUB
11h 50m1 stop
€673American Airlines
Find Deal
Wed, 1 Apr - Sun, 5 Apr
Multiple Airlines Logo
12:55 - 05:34DUB-SJU
20h 39m1 stop
Multiple Airlines Logo
14:28 - 08:40SJU-DUB
14h 12m1 stop
€692Multiple Airlines
Find Deal
Mon, 22 Dec - Sun, 18 Jan

British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
23 Jan
DUB08:45Dublin
19h 14m
2 stops
SJU23:59San Juan Luis Munoz Marin Intl
25 Jan
SJU07:00San Juan Luis Munoz Marin Intl
21h 40m
1 stop
DUB08:40Dublin
€616
Find similar
British Airways
7 Feb
DUB08:45Dublin
19h 14m
2 stops
SJU23:59San Juan Luis Munoz Marin Intl
15 Feb
SJU17:09San Juan Luis Munoz Marin Intl
11h 31m
1 stop
DUB08:40Dublin
€617
Find similar
British Airways
8 Apr
DUB08:50Dublin
20h 20m
2 stops
SJU00:10San Juan Luis Munoz Marin Intl
24 Apr
SJU13:45San Juan Luis Munoz Marin Intl
15h 30m
2 stops
DUB10:15Dublin
€654
Find similar

Delta flights from Ireland to San Juan

Our best Delta deals on Ireland to San Juan flight tickets
Delta
1 Apr
DUB08:55Dublin
18h 23m
2 stops
SJU22:18San Juan Luis Munoz Marin Intl
5 Apr
SJU17:10San Juan Luis Munoz Marin Intl
34h 35m
1 stop
DUB08:45Dublin
€715
Find similar
Delta
1 Apr
DUB06:00Dublin
20h 58m
2 stops
SJU21:58San Juan Luis Munoz Marin Intl
5 Apr
SJU17:10San Juan Luis Munoz Marin Intl
34h 35m
1 stop
DUB08:45Dublin
€719
Find similar

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 15 November 2025.
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

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 23/1

08:45-23:59

2 stops19h 14m

San Juan Luis Munoz Marin Intl

Sun 25/1

07:00-08:40

1 stop21h 40m

€616

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 23/1

11:30-23:56

1 stop16h 26m

San Juan Luis Munoz Marin Intl

Sun 25/1

07:00-08:40

1 stop21h 40m

€624

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 23/1

11:30-10:48

2 stops27h 18m

San Juan Luis Munoz Marin Intl

Sun 25/1

13:58-08:40

2 stops14h 42m

€629

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

08:50-00:10

2 stops20h 20m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:45-10:15

2 stops15h 30m

€654

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

09:30-00:10

1 stop19h 40m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:45-10:15

2 stops15h 30m

€656

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

09:30-00:10

1 stop19h 40m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:45-11:15

2 stops16h 30m

€658

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 1/4

12:40-10:40

1 stop27h 00m

San Juan Luis Munoz Marin Intl

Sun 5/4

06:54-09:45

1 stop21h 51m

€671

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 1/4

12:40-10:40

1 stop27h 00m

San Juan Luis Munoz Marin Intl

Sun 5/4

05:35-06:30

1 stop19h 55m

€672

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 1/4

09:30-12:15

1 stop31h 45m

San Juan Luis Munoz Marin Intl

Sun 5/4

13:40-06:30

1 stop11h 50m

€673

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 22/12

12:55-05:34

1 stop20h 39m

San Juan Luis Munoz Marin Intl

Sun 18/1

14:28-08:40

1 stop14h 12m

€692

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 €509, 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 €559.

What is the cheapest day to depart on your flight to San Juan?

On average, the least expensive day to fly to San Juan from Ireland is on a Monday. momondo users have found tickets for Monday departures for as low as €716. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €897. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Juan.

What is the cheapest time of day to depart on your flight to San Juan?

According to our data, the cheapest time of day to fly to San Juan is in the morning. momondo users have found flights departing from Ireland to San Juan in the morning for as low as €828. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to San Juan, so prices are often more expensive at around €911 per ticket.

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

Direct flights

None
There are no direct flights from Ireland to San Juan. There are no popular flight routes from Ireland to San Juan.
Search flight deals

  • 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 €536Free CancellationRating
7.2
2,904 reviews
Search JetBlue 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