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Cheap flights from Ireland to San Juan from £268

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 11/5. 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
11:30 - 10:24
DUB
-
SJU
27h 54m
1 stop
JetBlue Logo
05:01 - 08:20
SJU
-
DUB
22h 19m
1 stop
£476JetBlue
Sat, 16 May - Mon, 1 Jun
JetBlue Logo
11:30 - 19:32
DUB
-
SJU
13h 02m
1 stop
JetBlue Logo
10:30 - 09:00
SJU
-
DUB
17h 30m
1 stop
£488JetBlue
Mon, 5 Oct - Sat, 17 Oct
JetBlue Logo
11:30 - 13:39
DUB
-
SJU
31h 09m
1 stop
JetBlue Logo
05:01 - 08:20
SJU
-
DUB
22h 19m
1 stop
£493JetBlue
Mon, 18 May - Mon, 1 Jun
JetBlue Logo
11:30 - 10:24
DUB
-
SJU
27h 54m
1 stop
JetBlue Logo
03:30 - 09:00
SJU
-
DUB
24h 30m
1 stop
£524JetBlue
Thu, 14 May - Thu, 28 May
British Airways Logo
08:35 - 23:01
DUB
-
SJU
19h 26m
2 stops
British Airways Logo
13:47 - 06:30
SJU
-
DUB
11h 43m
1 stop
£603British Airways
Sun, 31 May - Sun, 7 Jun
British Airways Logo
08:35 - 21:24
DUB
-
SJU
17h 49m
2 stops
British Airways Logo
13:47 - 06:30
SJU
-
DUB
11h 43m
1 stop
£607British Airways
Sat, 16 May - Mon, 1 Jun
British Airways Logo
07:00 - 21:24
DUB
-
SJU
19h 24m
2 stops
British Airways Logo
06:20 - 06:30
SJU
-
DUB
19h 10m
1 stop
£615British Airways
Thu, 14 May - Fri, 29 May
JetBlue Logo
11:30 - 21:00
DUB
-
SJU
14h 30m
1 stop
JetBlue Logo
14:35 - 09:00
SJU
-
DUB
13h 25m
1 stop
£630JetBlue
Tue, 5 May - Fri, 8 May
JetBlue Logo
11:30 - 21:00
DUB
-
SJU
14h 30m
1 stop
JetBlue Logo
14:35 - 09:00
SJU
-
DUB
13h 25m
1 stop
£631JetBlue
Tue, 5 May - Fri, 8 May
JetBlue Logo
11:30 - 21:00
DUB
-
SJU
14h 30m
1 stop
JetBlue Logo
14:35 - 09:00
SJU
-
DUB
13h 25m
1 stop
£632JetBlue
Tue, 5 May - Fri, 8 May

JetBlue flights from Ireland to San Juan

Our best JetBlue deals on Ireland to San Juan flight tickets
JetBlue
16 May
DUB11:30Dublin
27h 54m
1 stop
SJU10:24San Juan Luis Munoz Marin Intl
1 Jun
SJU05:01San Juan Luis Munoz Marin Intl
22h 19m
1 stop
DUB08:20Dublin
£476
JetBlue
5 Oct
DUB11:30Dublin
13h 02m
1 stop
SJU19:32San Juan Luis Munoz Marin Intl
17 Oct
SJU10:30San Juan Luis Munoz Marin Intl
17h 30m
1 stop
DUB09:00Dublin
£488
JetBlue
18 May
DUB11:30Dublin
31h 09m
1 stop
SJU13:39San Juan Luis Munoz Marin Intl
1 Jun
SJU05:01San Juan Luis Munoz Marin Intl
22h 19m
1 stop
DUB08:20Dublin
£493

British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
31 May
DUB08:35Dublin
19h 26m
2 stops
SJU23:01San Juan Luis Munoz Marin Intl
7 Jun
SJU13:47San Juan Luis Munoz Marin Intl
11h 43m
1 stop
DUB06:30Dublin
£603
British Airways
16 May
DUB08:35Dublin
17h 49m
2 stops
SJU21:24San Juan Luis Munoz Marin Intl
1 Jun
SJU13:47San Juan Luis Munoz Marin Intl
11h 43m
1 stop
DUB06:30Dublin
£607
British Airways
14 May
DUB07:00Dublin
19h 24m
2 stops
SJU21:24San Juan Luis Munoz Marin Intl
29 May
SJU06:20San Juan Luis Munoz Marin Intl
19h 10m
1 stop
DUB06:30Dublin
£615

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 21 April 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

Cheapest return flight

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 16/5

11:30-10:24

1 stop27h 54m

San Juan Luis Munoz Marin Intl

Mon 1/6

05:01-08:20

1 stop22h 19m

£476

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 5/10

11:30-19:32

1 stop13h 02m

San Juan Luis Munoz Marin Intl

Sat 17/10

10:30-09:00

1 stop17h 30m

£488

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 18/5

11:30-13:39

1 stop31h 09m

San Juan Luis Munoz Marin Intl

Mon 1/6

05:01-08:20

1 stop22h 19m

£493

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 14/5

11:30-10:24

1 stop27h 54m

San Juan Luis Munoz Marin Intl

Thu 28/5

03:30-09:00

1 stop24h 30m

£524

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 31/5

08:35-23:01

2 stops19h 26m

San Juan Luis Munoz Marin Intl

Sun 7/6

13:47-06:30

1 stop11h 43m

£603

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 16/5

08:35-21:24

2 stops17h 49m

San Juan Luis Munoz Marin Intl

Mon 1/6

13:47-06:30

1 stop11h 43m

£607

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 14/5

07:00-21:24

2 stops19h 24m

San Juan Luis Munoz Marin Intl

Fri 29/5

06:20-06:30

1 stop19h 10m

£615
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 5/5

11:30-21:00

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Fri 8/5

14:35-09:00

1 stop13h 25m

£630

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 5/5

11:30-21:00

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Fri 8/5

14:35-09:00

1 stop13h 25m

£631

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 5/5

11:30-21:00

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Fri 8/5

14:35-09:00

1 stop13h 25m

£632

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 £457, 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 £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

Frequently asked questions about flying from Ireland to San Juan

  • 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 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 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.

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
American AirlinesPriceFrom £575Free CancellationRating
7.1
11,645 reviews
Search American Airlines flights

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