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Cheap flights from Ireland to San Juan from €392

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.
Multiple Airlines Logo
06:00 - 23:20DUB-SJU
21h 20m2 stops
Multiple Airlines Logo
14:10 - 08:45SJU-DUB
14h 35m1 stop
€615Multiple Airlines
Find Deal
Sat, 6 Dec - Thu, 11 Dec
Multiple Airlines Logo
11:30 - 10:10DUB-SJU
26h 40m2 stops
Multiple Airlines Logo
17:09 - 08:40SJU-DUB
11h 31m1 stop
€616Multiple Airlines
Find Deal
Wed, 19 Nov - Wed, 26 Nov
Delta Logo
08:50 - 23:56DUB-SJU
19h 06m2 stops
Delta Logo
07:15 - 08:05SJU-DUB
20h 50m2 stops
€630Delta
Find Deal
Sat, 22 Nov - Wed, 26 Nov
Delta Logo
10:45 - 23:56DUB-SJU
17h 11m1 stop
Delta Logo
18:35 - 08:45SJU-DUB
34h 10m1 stop
€636Delta
Find Deal
Sat, 22 Nov - Wed, 26 Nov
British Airways Logo
06:30 - 19:55DUB-SJU
18h 25m2 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
11:50 - 09:40SJU-DUB
16h 50m2 stops
€655British Airways
Find Deal
Wed, 8 Apr - Fri, 24 Apr
American Airlines Logo
09:30 - 22:25DUB-SJU
17h 55m1 stop
American Airlines Logo
15:35 - 09:55SJU-DUB
13h 20m1 stop
€670American Airlines
Find Deal
Wed, 1 Apr - Sun, 5 Apr
American Airlines Logo
12:40 - 12:25DUB-SJU
28h 45m1 stop
American Airlines Logo
05:35 - 06:30SJU-DUB
19h 55m1 stop
€672American Airlines
Find Deal
Wed, 1 Apr - Sun, 5 Apr
United Airlines Logo
09:00 - 00:36DUB-SJU
19h 36m2 stops
United Airlines Logo
02:05 - 08:10SJU-DUB
26h 05m2 stops
€760United Airlines
Find Deal
Wed, 19 Nov - Tue, 25 Nov
United Airlines Logo
10:40 - 21:00DUB-SJU
14h 20m1 stop
United Airlines Logo
02:05 - 08:10SJU-DUB
26h 05m2 stops
€764United Airlines
Find Deal
Fri, 30 Jan - Sat, 7 Feb

Delta flights from Ireland to San Juan

Our best Delta deals on Ireland to San Juan flight tickets
Delta
22 Nov
DUB08:50Dublin
19h 06m
2 stops
SJU23:56San Juan Luis Munoz Marin Intl
26 Nov
SJU07:15San Juan Luis Munoz Marin Intl
20h 50m
2 stops
DUB08:05Dublin
€630
Find similar
Delta
22 Nov
DUB10:45Dublin
17h 11m
1 stop
SJU23:56San Juan Luis Munoz Marin Intl
26 Nov
SJU18:35San Juan Luis Munoz Marin Intl
34h 10m
1 stop
DUB08:45Dublin
€636
Find similar
Delta
1 Apr
DUB06:00Dublin
21h 18m
2 stops
SJU22:18San Juan Luis Munoz Marin Intl
5 Apr
SJU17:10San Juan Luis Munoz Marin Intl
34h 35m
1 stop
DUB08:45Dublin
€682
Find similar

American Airlines flights from Ireland to San Juan

Our best American Airlines deals on Ireland to San Juan flight tickets
American Airlines
14 Nov
DUB11:30Dublin
16h 22m
1 stop
SJU23:52San Juan Luis Munoz Marin Intl
27 Nov
SJU18:42San Juan Luis Munoz Marin Intl
18h 43m
2 stops
DUB17:25Dublin
€602
Find similar
American Airlines
1 Apr
DUB09:30Dublin
17h 55m
1 stop
SJU22:25San Juan Luis Munoz Marin Intl
5 Apr
SJU15:35San Juan Luis Munoz Marin Intl
13h 20m
1 stop
DUB09:55Dublin
€670
Find similar
American Airlines
1 Apr
DUB12:40Dublin
28h 45m
1 stop
SJU12:25San Juan Luis Munoz Marin Intl
5 Apr
SJU05:35San Juan Luis Munoz Marin Intl
19h 55m
1 stop
DUB06:30Dublin
€672
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 8 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

Sat 6/12

06:00-23:20

2 stops21h 20m

San Juan Luis Munoz Marin Intl

Thu 11/12

14:10-08:45

1 stop14h 35m

€615

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 19/11

11:30-10:10

2 stops26h 40m

San Juan Luis Munoz Marin Intl

Wed 26/11

17:09-08:40

1 stop11h 31m

€616

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 22/11

08:50-23:56

2 stops19h 06m

San Juan Luis Munoz Marin Intl

Wed 26/11

07:15-08:05

2 stops20h 50m

€630

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 22/11

10:45-23:56

1 stop17h 11m

San Juan Luis Munoz Marin Intl

Wed 26/11

18:35-08:45

1 stop34h 10m

€636

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

06:30-19:55

2 stops18h 25m

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

11:50-09:40

2 stops16h 50m

€655

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 1/4

09:30-22:25

1 stop17h 55m

San Juan Luis Munoz Marin Intl

Sun 5/4

15:35-09:55

1 stop13h 20m

€670

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 1/4

12:40-12:25

1 stop28h 45m

San Juan Luis Munoz Marin Intl

Sun 5/4

05:35-06:30

1 stop19h 55m

€672

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 19/11

09:00-00:36

2 stops19h 36m

San Juan Luis Munoz Marin Intl

Tue 25/11

02:05-08:10

2 stops26h 05m

€760

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 30/1

10:40-21:00

1 stop14h 20m

San Juan Luis Munoz Marin Intl

Sat 7/2

02:05-08:10

2 stops26h 05m

€764

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 €512, 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 €563.

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 €721. 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 €902. 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 €833. 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 €917 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 €539Free CancellationRating
7.2
2,908 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