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Cheap flights from Ireland to San Juan from €409

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

British Airways Logo
20:40 - 23:30DUB-SJU
30h 50m2 stops
British Airways Logo
16:50 - 14:20SJU-DUB
17h 30m2 stops
€551British Airways
Find Deal
Sat, 14 Feb - Tue, 24 Feb
British Airways Logo
08:50 - 23:40DUB-SJU
18h 50m2 stops
British Airways Logo
14:45 - 12:10SJU-DUB
17h 25m2 stops
€551British Airways
Find Deal
Thu, 22 Jan - Tue, 3 Feb
British Airways Logo
11:30 - 23:40DUB-SJU
16h 10m1 stop
British Airways Logo
16:50 - 14:20SJU-DUB
17h 30m2 stops
€552British Airways
Find Deal
Thu, 22 Jan - Tue, 3 Feb
Logo
09:30 - 11:11DUB-SJU
30h 41m2 stops
Logo
15:05 - 09:45SJU-DUB
37h 40m1 stop
€563
Find Deal
Tue, 30 Sep - Sat, 4 Oct
American Airlines Logo
08:50 - 23:53DUB-SJU
19h 03m2 stops
American Airlines Logo
06:25 - 08:40SJU-DUB
22h 15m1 stop
€567American Airlines
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Logo
11:30 - 22:35DUB-SJU
15h 05m2 stops
Logo
14:40 - 08:40SJU-DUB
14h 00m1 stop
€568
Find Deal
Sat, 14 Feb - Tue, 24 Feb
American Airlines Logo
11:30 - 23:53DUB-SJU
16h 23m2 stops
American Airlines Logo
06:25 - 08:40SJU-DUB
22h 15m1 stop
€568American Airlines
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Delta Logo
08:50 - 00:03DUB-SJU
19h 13m2 stops
Delta Logo
13:57 - 07:45SJU-DUB
13h 48m1 stop
€620Delta
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Delta Logo
05:55 - 00:03DUB-SJU
22h 08m2 stops
Delta Logo
14:10 - 12:40SJU-DUB
18h 30m2 stops
€622Delta
Find Deal
Fri, 5 Dec - Mon, 8 Dec
JetBlue Logo
11:30 - 21:24DUB-SJU
14h 54m1 stop
JetBlue Logo
13:29 - 08:20SJU-DUB
13h 51m1 stop
€663JetBlue
Find Deal
Thu, 25 Sep - Thu, 2 Oct

United Airlines flights from Ireland to San Juan

Our best United Airlines deals on Ireland to San Juan flight tickets
United Airlines
22 Jan
DUB10:40Dublin
14h 20m
1 stop
SJU21:00San Juan Luis Munoz Marin Intl
2 Feb
SJU02:05San Juan Luis Munoz Marin Intl
26h 05m
2 stops
DUB08:10Dublin
€768
Find similar
United Airlines
26 Oct
DUB13:35Dublin
14h 01m
1 stop
SJU23:36San Juan Luis Munoz Marin Intl
8 Nov
SJU14:20San Juan Luis Munoz Marin Intl
15h 35m
1 stop
DUB09:55Dublin
€792
Find similar
United Airlines
26 Oct
DUB13:35Dublin
14h 01m
1 stop
SJU23:36San Juan Luis Munoz Marin Intl
7 Nov
SJU02:05San Juan Luis Munoz Marin Intl
27h 50m
1 stop
DUB09:55Dublin
€861
Find similar

British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
14 Feb
DUB20:40Dublin
30h 50m
2 stops
SJU23:30San Juan Luis Munoz Marin Intl
24 Feb
SJU16:50San Juan Luis Munoz Marin Intl
17h 30m
2 stops
DUB14:20Dublin
€551
Find similar
British Airways
22 Jan
DUB08:50Dublin
18h 50m
2 stops
SJU23:40San Juan Luis Munoz Marin Intl
3 Feb
SJU14:45San Juan Luis Munoz Marin Intl
17h 25m
2 stops
DUB12:10Dublin
€551
Find similar
British Airways
22 Jan
DUB11:30Dublin
16h 10m
1 stop
SJU23:40San Juan Luis Munoz Marin Intl
3 Feb
SJU16:50San Juan Luis Munoz Marin Intl
17h 30m
2 stops
DUB14:20Dublin
€552
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 September 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

Sat 14/2

20:40-23:30

2 stops30h 50m

San Juan Luis Munoz Marin Intl

Tue 24/2

16:50-14:20

2 stops17h 30m

€551

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 22/1

08:50-23:40

2 stops18h 50m

San Juan Luis Munoz Marin Intl

Tue 3/2

14:45-12:10

2 stops17h 25m

€551

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 22/1

11:30-23:40

1 stop16h 10m

San Juan Luis Munoz Marin Intl

Tue 3/2

16:50-14:20

2 stops17h 30m

€552

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 30/9

09:30-11:11

2 stops30h 41m

San Juan Luis Munoz Marin Intl

Sat 4/10

15:05-09:45

1 stop37h 40m

€563

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/12

08:50-23:53

2 stops19h 03m

San Juan Luis Munoz Marin Intl

Mon 8/12

06:25-08:40

1 stop22h 15m

€567

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 14/2

11:30-22:35

2 stops15h 05m

San Juan Luis Munoz Marin Intl

Tue 24/2

14:40-08:40

1 stop14h 00m

€568

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/12

11:30-23:53

2 stops16h 23m

San Juan Luis Munoz Marin Intl

Mon 8/12

06:25-08:40

1 stop22h 15m

€568

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/12

08:50-00:03

2 stops19h 13m

San Juan Luis Munoz Marin Intl

Mon 8/12

13:57-07:45

1 stop13h 48m

€620

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/12

05:55-00:03

2 stops22h 08m

San Juan Luis Munoz Marin Intl

Mon 8/12

14:10-12:40

2 stops18h 30m

€622

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 25/9

11:30-21:24

1 stop14h 54m

San Juan Luis Munoz Marin Intl

Thu 2/10

13:29-08:20

1 stop13h 51m

€663

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 €531, 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 €553.

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 €709. 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 €887. 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 €819. 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 €901 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 €530Free CancellationRating
7.2
2,912 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