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Cheap flights from Ireland to San Juan from £338

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 6/5. 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.
KLM Logo
09:45 - 23:58
DUB
-
SJU
18h 13m1 stop
KLM Logo
14:24 - 09:20
SJU
-
DUB
14h 56m1 stop
£496KLM
Sun, 22 Feb - Sun, 1 Mar
British Airways Logo
11:30 - 13:33
DUB
-
SJU
30h 03m2 stops
British Airways Logo
06:00 - 08:40
SJU
-
DUB
22h 40m1 stop
£498British Airways
Fri, 20 Feb - Fri, 27 Feb
British Airways Logo
11:30 - 23:40
DUB
-
SJU
16h 10m1 stop
British Airways Logo
06:00 - 08:40
SJU
-
DUB
22h 40m1 stop
£499British Airways
Fri, 20 Feb - Fri, 27 Feb
KLM Logo
05:55 - 23:56
DUB
-
SJU
22h 01m2 stops
KLM Logo
18:42 - 07:45
SJU
-
DUB
33h 03m1 stop
£501KLM
Fri, 20 Feb - Fri, 27 Feb
American Airlines Logo
11:30 - 23:40
DUB
-
SJU
16h 10m1 stop
American Airlines Logo
14:30 - 08:40
SJU
-
DUB
14h 10m1 stop
£505American Airlines
Fri, 20 Feb - Fri, 27 Feb
KLM Logo
05:55 - 21:12
DUB
-
SJU
19h 17m2 stops
KLM Logo
14:24 - 09:20
SJU
-
DUB
14h 56m1 stop
£507KLM
Sun, 22 Feb - Sun, 1 Mar
KLM Logo
05:55 - 23:56
DUB
-
SJU
22h 01m2 stops
KLM Logo
14:16 - 12:40
SJU
-
DUB
18h 24m2 stops
£524KLM
Fri, 20 Feb - Fri, 27 Feb
British Airways Logo
12:40 - 22:05
DUB
-
SJU
14h 25m1 stop
British Airways Logo
11:43 - 09:40
SJU
-
DUB
16h 57m2 stops
£530British Airways
Wed, 8 Apr - Fri, 24 Apr
Multiple Airlines Logo
06:00 - 11:35
DUB
-
SJU
33h 35m2 stops
Multiple Airlines Logo
12:32 - 14:25
SJU
-
DUB
21h 53m3 stops
£533Multiple Airlines
Fri, 20 Feb - Fri, 27 Feb
JetBlue Logo
10:40 - 22:12
DUB
-
SJU
16h 32m1 stop
JetBlue Logo
15:00 - 09:00
SJU
-
DUB
13h 00m1 stop
£538JetBlue
Wed, 22 Apr - Wed, 29 Apr

British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
15 Jan
DUB11:30Dublin
16h 26m
1 stop
SJU23:56San Juan Luis Munoz Marin Intl
28 Jan
SJU13:24San Juan Luis Munoz Marin Intl
16h 16m
2 stops
DUB09:40Dublin
£484
British Airways
20 Feb
DUB11:30Dublin
30h 03m
2 stops
SJU13:33San Juan Luis Munoz Marin Intl
27 Feb
SJU06:00San Juan Luis Munoz Marin Intl
22h 40m
1 stop
DUB08:40Dublin
£498
British Airways
20 Feb
DUB11:30Dublin
16h 10m
1 stop
SJU23:40San Juan Luis Munoz Marin Intl
27 Feb
SJU06:00San Juan Luis Munoz Marin Intl
22h 40m
1 stop
DUB08:40Dublin
£499

American Airlines flights from Ireland to San Juan

Our best American Airlines deals on Ireland to San Juan flight tickets
American Airlines
20 Feb
DUB11:30Dublin
16h 10m
1 stop
SJU23:40San Juan Luis Munoz Marin Intl
27 Feb
SJU14:30San Juan Luis Munoz Marin Intl
14h 10m
1 stop
DUB08:40Dublin
£505
American Airlines
13 Apr
DUB16:20Dublin
25h 09m
2 stops
SJU12:29San Juan Luis Munoz Marin Intl
22 Apr
SJU16:30San Juan Luis Munoz Marin Intl
12h 05m
1 stop
DUB09:35Dublin
£1,950
American Airlines
10 Apr
DUB11:45Dublin
14h 06m
1 stop
SJU20:51San Juan Luis Munoz Marin Intl
16 Apr
SJU13:25San Juan Luis Munoz Marin Intl
12h 05m
1 stop
DUB06:30Dublin
£2,080

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 279,928 searches. Data last updated 9 January 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

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 22/2

09:45-23:58

1 stop18h 13m

San Juan Luis Munoz Marin Intl

Sun 1/3

14:24-09:20

1 stop14h 56m

£496

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/2

11:30-13:33

2 stops30h 03m

San Juan Luis Munoz Marin Intl

Fri 27/2

06:00-08:40

1 stop22h 40m

£498

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/2

11:30-23:40

1 stop16h 10m

San Juan Luis Munoz Marin Intl

Fri 27/2

06:00-08:40

1 stop22h 40m

£499

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/2

05:55-23:56

2 stops22h 01m

San Juan Luis Munoz Marin Intl

Fri 27/2

18:42-07:45

1 stop33h 03m

£501

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/2

11:30-23:40

1 stop16h 10m

San Juan Luis Munoz Marin Intl

Fri 27/2

14:30-08:40

1 stop14h 10m

£505

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 22/2

05:55-21:12

2 stops19h 17m

San Juan Luis Munoz Marin Intl

Sun 1/3

14:24-09:20

1 stop14h 56m

£507

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/2

05:55-23:56

2 stops22h 01m

San Juan Luis Munoz Marin Intl

Fri 27/2

14:16-12:40

2 stops18h 24m

£524

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Fri 24/4

11:43-09:40

2 stops16h 57m

£530

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 20/2

06:00-11:35

2 stops33h 35m

San Juan Luis Munoz Marin Intl

Fri 27/2

12:32-14:25

3 stops21h 53m

£533

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 22/4

10:40-22:12

1 stop16h 32m

San Juan Luis Munoz Marin Intl

Wed 29/4

15:00-09:00

1 stop13h 00m

£538

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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 £440, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to San Juan from Ireland during June instead. Flights to San Juan in June, while not as cheap as those in May, still average around £483.

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

28h 57m

Direct flights

None
The fastest flight from Ireland to San Juan takes 28h 57m
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 are updated daily.

  • 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 required travel and health documents for your San Juan trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ireland to San Juan for you.

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

Yes. momondo enables you to select and highlight flights to San Juan from Ireland with this policy.

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 7.1 mi from San Juan
San Juan Luis Munoz Marin Intl Airport