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Cheap flights from Ireland to San Juan from £408

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.
JetBlue Logo
10:40 - 02:39
DUB
-
SJU
20h 59m
1 stop
JetBlue Logo
18:45 - 08:20
SJU
-
DUB
32h 35m
1 stop
£412JetBlue
Thu, 23 Apr - Thu, 7 May
JetBlue Logo
11:40 - 00:07
DUB
-
SJU
17h 27m
1 stop
JetBlue Logo
12:50 - 08:20
SJU
-
DUB
14h 30m
1 stop
£423JetBlue
Sat, 2 May - Sat, 9 May
Finnair Logo
09:30 - 23:02
DUB
-
SJU
18h 32m
1 stop
Finnair Logo
06:45 - 11:50
SJU
-
DUB
24h 05m
2 stops
£434Finnair
Thu, 23 Apr - Thu, 7 May
Finnair Logo
09:30 - 23:02
DUB
-
SJU
18h 32m
1 stop
Finnair Logo
06:45 - 09:45
SJU
-
DUB
22h 00m
1 stop
£436Finnair
Mon, 13 Apr - Mon, 20 Apr
Finnair Logo
09:30 - 23:02
DUB
-
SJU
18h 32m
1 stop
Finnair Logo
06:45 - 09:45
SJU
-
DUB
22h 00m
1 stop
£437Finnair
Thu, 23 Apr - Thu, 7 May
British Airways Logo
12:40 - 22:05
DUB
-
SJU
14h 25m
1 stop
British Airways Logo
18:02 - 16:20
SJU
-
DUB
17h 18m
2 stops
£537British Airways
Sat, 2 May - Sat, 9 May
British Airways Logo
12:40 - 22:05
DUB
-
SJU
14h 25m
1 stop
British Airways Logo
13:31 - 12:00
SJU
-
DUB
17h 29m
2 stops
£542British Airways
Mon, 13 Apr - Mon, 20 Apr
British Airways Logo
12:40 - 22:05
DUB
-
SJU
14h 25m
1 stop
British Airways Logo
11:43 - 09:40
SJU
-
DUB
16h 57m
2 stops
£543British Airways
Thu, 23 Apr - Thu, 7 May
British Airways Logo
08:35 - 22:05
DUB
-
SJU
18h 30m
2 stops
British Airways Logo
13:25 - 06:30
SJU
-
DUB
12h 05m
1 stop
£568British Airways
Tue, 21 Apr - Sun, 26 Apr
British Airways Logo
07:30 - 22:05
DUB
-
SJU
19h 35m
2 stops
British Airways Logo
11:43 - 09:40
SJU
-
DUB
16h 57m
2 stops
£569British Airways
Thu, 23 Apr - Thu, 7 May

British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
2 May
DUB12:40Dublin
14h 25m
1 stop
SJU22:05San Juan Luis Munoz Marin Intl
9 May
SJU18:02San Juan Luis Munoz Marin Intl
17h 18m
2 stops
DUB16:20Dublin
£537
British Airways
13 Apr
DUB12:40Dublin
14h 25m
1 stop
SJU22:05San Juan Luis Munoz Marin Intl
20 Apr
SJU13:31San Juan Luis Munoz Marin Intl
17h 29m
2 stops
DUB12:00Dublin
£542
British Airways
23 Apr
DUB12:40Dublin
14h 25m
1 stop
SJU22:05San Juan Luis Munoz Marin Intl
7 May
SJU11:43San Juan Luis Munoz Marin Intl
16h 57m
2 stops
DUB09:40Dublin
£543

JetBlue flights from Ireland to San Juan

Our best JetBlue deals on Ireland to San Juan flight tickets
JetBlue
23 Apr
DUB10:40Dublin
20h 59m
1 stop
SJU02:39San Juan Luis Munoz Marin Intl
7 May
SJU18:45San Juan Luis Munoz Marin Intl
32h 35m
1 stop
DUB08:20Dublin
£412
JetBlue
2 May
DUB11:40Dublin
17h 27m
1 stop
SJU00:07San Juan Luis Munoz Marin Intl
9 May
SJU12:50San Juan Luis Munoz Marin Intl
14h 30m
1 stop
DUB08:20Dublin
£423

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 4 March 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

Thu 23/4

10:40-02:39

1 stop20h 59m

San Juan Luis Munoz Marin Intl

Thu 7/5

18:45-08:20

1 stop32h 35m

£412

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 2/5

11:40-00:07

1 stop17h 27m

San Juan Luis Munoz Marin Intl

Sat 9/5

12:50-08:20

1 stop14h 30m

£423

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 23/4

09:30-23:02

1 stop18h 32m

San Juan Luis Munoz Marin Intl

Thu 7/5

06:45-11:50

2 stops24h 05m

£434

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 13/4

09:30-23:02

1 stop18h 32m

San Juan Luis Munoz Marin Intl

Mon 20/4

06:45-09:45

1 stop22h 00m

£436

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 23/4

09:30-23:02

1 stop18h 32m

San Juan Luis Munoz Marin Intl

Thu 7/5

06:45-09:45

1 stop22h 00m

£437

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 2/5

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Sat 9/5

18:02-16:20

2 stops17h 18m

£537

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 13/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Mon 20/4

13:31-12:00

2 stops17h 29m

£542

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 23/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Thu 7/5

11:43-09:40

2 stops16h 57m

£543

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 21/4

08:35-22:05

2 stops18h 30m

San Juan Luis Munoz Marin Intl

Sun 26/4

13:25-06:30

1 stop12h 05m

£568

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 23/4

07:30-22:05

2 stops19h 35m

San Juan Luis Munoz Marin Intl

Thu 7/5

11:43-09:40

2 stops16h 57m

£569

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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 June. Flight prices, which tend to average around £487, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of June, then book flights to San Juan from Ireland during May instead. Flights to San Juan in May, while not as cheap as those in June, still average around £510.

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

21h 16m

Direct flights

None
The fastest flight from Ireland to San Juan takes 21h 16m
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