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Cheap flights from Ireland to San Juan from £503

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 12/10. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 19:34DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 04m1 stop New York John F Kennedy Intl
JetBlue Logo
18:55 - 08:20SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
32h 25m1 stop Boston Logan Intl
£545JetBlue
Wed, 23 Sep - Fri, 2 Oct
JetBlue Logo
11:30 - 16:12DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 42m1 stop New York John F Kennedy Intl
JetBlue Logo
10:30 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
17h 30m1 stop New York John F Kennedy Intl
£546JetBlue
Tue, 22 Sep - Sat, 3 Oct
Multiple Airlines Logo
09:50 - 18:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 55m1 stop Madrid Barajas
Multiple Airlines Logo
11:51 - 09:40SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
16h 49m2 stops Miami London Heathrow
£546Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
JetBlue Logo
11:30 - 19:34DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 04m1 stop New York John F Kennedy Intl
JetBlue Logo
06:00 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
22h 00m1 stop New York John F Kennedy Intl
£552JetBlue
Tue, 22 Sep - Sat, 3 Oct
JetBlue Logo
11:30 - 19:34DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 04m1 stop New York John F Kennedy Intl
JetBlue Logo
06:00 - 08:20SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
21h 20m1 stop Boston Logan Intl
£553JetBlue
Wed, 23 Sep - Tue, 6 Oct
JetBlue Logo
10:40 - 22:27DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
16h 47m1 stop Boston Logan Intl
JetBlue Logo
06:00 - 08:20SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
21h 20m1 stop Boston Logan Intl
£553JetBlue
Fri, 25 Sep - Fri, 2 Oct
JetBlue Logo
11:30 - 19:34DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 04m1 stop New York John F Kennedy Intl
JetBlue Logo
06:00 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
22h 00m1 stop New York John F Kennedy Intl
£555JetBlue
Wed, 23 Sep - Mon, 5 Oct
American Airlines Logo
09:50 - 18:30DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 40m1 stop Madrid Barajas
American Airlines Logo
15:41 - 09:35SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
12h 54m1 stop Charlotte Douglas
£569American Airlines
Tue, 22 Sep - Sat, 3 Oct
American Airlines Logo
09:50 - 18:30DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 40m1 stop Madrid Barajas
American Airlines Logo
11:51 - 09:35SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
16h 44m2 stops Miami Charlotte Douglas
£572American Airlines
Tue, 22 Sep - Sat, 3 Oct
American Airlines Logo
09:50 - 18:30DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 40m1 stop Madrid Barajas
American Airlines Logo
11:51 - 09:35SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
16h 44m2 stops Miami Charlotte Douglas
£573American Airlines
Tue, 22 Sep - Sat, 3 Oct

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British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
7 Sept
DUB08:40Dublin
18h 15m
2 stops
SJU21:55San Juan Luis Munoz Marin Intl
13 Sept
SJU11:51San Juan Luis Munoz Marin Intl
16h 49m
2 stops
DUB09:40Dublin
£617
British Airways
1 Sept
DUB08:40Dublin
18h 15m
2 stops
SJU21:55San Juan Luis Munoz Marin Intl
7 Sept
SJU07:03San Juan Luis Munoz Marin Intl
18h 27m
1 stop
DUB06:30Dublin
£627
British Airways
3 Dec
DUB11:30Dublin
16h 29m
1 stop
SJU23:59San Juan Luis Munoz Marin Intl
16 Dec
SJU11:34San Juan Luis Munoz Marin Intl
18h 06m
2 stops
DUB09:40Dublin
£629

United Airlines flights from Ireland to San Juan

Our best United Airlines deals on Ireland to San Juan flight tickets
United Airlines
5 Sept
DUB09:50Dublin
19h 00m
2 stops
SJU23:50San Juan Luis Munoz Marin Intl
12 Sept
SJU13:25San Juan Luis Munoz Marin Intl
16h 15m
2 stops
DUB10:40Dublin
£805
United Airlines
9 Sept
DUB09:20Dublin
33h 25m
2 stops
SJU13:45San Juan Luis Munoz Marin Intl
16 Sept
SJU13:25San Juan Luis Munoz Marin Intl
16h 15m
2 stops
DUB10:40Dublin
£808
United Airlines
9 Sept
DUB13:35Dublin
15h 15m
1 stop
SJU23:50San Juan Luis Munoz Marin Intl
16 Sept
SJU13:25San Juan Luis Munoz Marin Intl
16h 45m
1 stop
DUB11:10Dublin
£811

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 12 August 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 Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 23/9

11:30-19:34

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Fri 2/10

18:55-08:20

1 stop32h 25m

£545

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 22/9

11:30-16:12

1 stop33h 42m

San Juan Luis Munoz Marin Intl

Sat 3/10

10:30-09:00

1 stop17h 30m

£546

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Sat 5/9

09:50-18:45

1 stop13h 55m

San Juan Luis Munoz Marin Intl

Sat 12/9

11:51-09:40

2 stops16h 49m

£546

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 22/9

11:30-19:34

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Sat 3/10

06:00-09:00

1 stop22h 00m

£552

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 23/9

11:30-19:34

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Tue 6/10

06:00-08:20

1 stop21h 20m

£553

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

10:40-22:27

1 stop16h 47m

San Juan Luis Munoz Marin Intl

Fri 2/10

06:00-08:20

1 stop21h 20m

£553

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 23/9

11:30-19:34

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Mon 5/10

06:00-09:00

1 stop22h 00m

£555
Fastest return journey

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 22/9

09:50-18:30

1 stop13h 40m

San Juan Luis Munoz Marin Intl

Sat 3/10

15:41-09:35

1 stop12h 54m

£569

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 22/9

09:50-18:30

1 stop13h 40m

San Juan Luis Munoz Marin Intl

Sat 3/10

11:51-09:35

2 stops16h 44m

£572

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Tue 22/9

09:50-18:30

1 stop13h 40m

San Juan Luis Munoz Marin Intl

Sat 3/10

11:51-09:35

2 stops16h 44m

£573

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 £472, 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 £541.

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
11,915 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