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Cheap flights from Ireland to San Juan from £512

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to San Juan departing on 28/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Ireland to San Juan

Recent return flight deals from Ireland to San Juan

JetBlue Logo
10:40 - 14:20DUB-SJU
32h 40m1 stop
JetBlue Logo
14:25 - 08:20SJU-DUB
12h 55m1 stop
£512JetBlue
Find Deal
Thu, 28 Aug - Thu, 11 Sep
JetBlue Logo
11:30 - 21:24DUB-SJU
14h 54m1 stop
JetBlue Logo
14:25 - 08:20SJU-DUB
12h 55m1 stop
£514JetBlue
Find Deal
Tue, 23 Sep - Thu, 2 Oct
JetBlue Logo
11:30 - 21:24DUB-SJU
14h 54m1 stop
JetBlue Logo
14:25 - 08:20SJU-DUB
12h 55m1 stop
£519JetBlue
Find Deal
Fri, 19 Sep - Sat, 27 Sep
Delta Logo
10:45 - 23:50DUB-SJU
17h 05m1 stop
Delta Logo
07:30 - 08:45SJU-DUB
21h 15m2 stops
£519Delta
Find Deal
Tue, 11 Nov - Mon, 17 Nov
British Airways Logo
08:50 - 23:47DUB-SJU
18h 57m2 stops
British Airways Logo
18:42 - 15:25SJU-DUB
16h 43m2 stops
£523British Airways
Find Deal
Wed, 12 Nov - Mon, 17 Nov
Delta Logo
10:45 - 11:53DUB-SJU
29h 08m2 stops
Delta Logo
07:00 - 08:45SJU-DUB
21h 45m1 stop
£534Delta
Find Deal
Fri, 23 Jan - Sun, 1 Feb
Logo
11:30 - 00:05DUB-SJU
16h 35m2 stops
Logo
12:50 - 08:40SJU-DUB
15h 50m2 stops
£535
Find Deal
Fri, 23 Jan - Sun, 1 Feb
Logo
09:10 - 23:51DUB-SJU
19h 41m2 stops
Logo
13:32 - 09:15SJU-DUB
14h 43m1 stop
£560
Find Deal
Thu, 28 Aug - Thu, 11 Sep
British Airways Logo
08:35 - 23:05DUB-SJU
19h 30m2 stops
British Airways Logo
05:25 - 10:50SJU-DUB
24h 25m2 stops
£570British Airways
Find Deal
Sat, 18 Oct - Sat, 25 Oct
American Airlines Logo
09:30 - 23:05DUB-SJU
18h 35m1 stop
American Airlines Logo
05:25 - 09:40SJU-DUB
23h 15m1 stop
£590American Airlines
Find Deal
Sat, 18 Oct - Sat, 25 Oct

KLM flights from Ireland to San Juan

Our best KLM deals on Ireland to San Juan flight tickets
KLM
12 Sept
DUB08:55Dublin
19h 49m
2 stops
SJU23:44San Juan Luis Munoz Marin Intl
16 Sept
SJU13:32San Juan Luis Munoz Marin Intl
16h 13m
2 stops
DUB10:45Dublin
£631
Find similar
KLM
22 Aug
DUB12:00Dublin
16h 51m
2 stops
SJU23:51San Juan Luis Munoz Marin Intl
26 Aug
SJU13:16San Juan Luis Munoz Marin Intl
16h 29m
1 stop
DUB10:45Dublin
£658
Find similar

Delta flights from Ireland to San Juan

Our best Delta deals on Ireland to San Juan flight tickets
Delta
11 Nov
DUB10:45Dublin
17h 05m
1 stop
SJU23:50San Juan Luis Munoz Marin Intl
17 Nov
SJU07:30San Juan Luis Munoz Marin Intl
21h 15m
2 stops
DUB08:45Dublin
£519
Find similar
Delta
23 Jan
DUB10:45Dublin
29h 08m
2 stops
SJU11:53San Juan Luis Munoz Marin Intl
1 Feb
SJU07:00San Juan Luis Munoz Marin Intl
21h 45m
1 stop
DUB08:45Dublin
£534
Find similar
Delta
23 Sept
DUB08:55Dublin
19h 52m
2 stops
SJU23:47San Juan Luis Munoz Marin Intl
8 Oct
SJU07:00San Juan Luis Munoz Marin Intl
20h 15m
2 stops
DUB08:15Dublin
£574
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 279,928 searches. Data last updated 8 August 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

Thu 28/8

10:40-14:20

1 stop32h 40m

San Juan Luis Munoz Marin Intl

Thu 11/9

14:25-08:20

1 stop12h 55m

£512

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 23/9

11:30-21:24

1 stop14h 54m

San Juan Luis Munoz Marin Intl

Thu 2/10

14:25-08:20

1 stop12h 55m

£514

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 19/9

11:30-21:24

1 stop14h 54m

San Juan Luis Munoz Marin Intl

Sat 27/9

14:25-08:20

1 stop12h 55m

£519

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 11/11

10:45-23:50

1 stop17h 05m

San Juan Luis Munoz Marin Intl

Mon 17/11

07:30-08:45

2 stops21h 15m

£519

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 12/11

08:50-23:47

2 stops18h 57m

San Juan Luis Munoz Marin Intl

Mon 17/11

18:42-15:25

2 stops16h 43m

£523

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 23/1

10:45-11:53

2 stops29h 08m

San Juan Luis Munoz Marin Intl

Sun 1/2

07:00-08:45

1 stop21h 45m

£534

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 23/1

11:30-00:05

2 stops16h 35m

San Juan Luis Munoz Marin Intl

Sun 1/2

12:50-08:40

2 stops15h 50m

£535

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 28/8

09:10-23:51

2 stops19h 41m

San Juan Luis Munoz Marin Intl

Thu 11/9

13:32-09:15

1 stop14h 43m

£560

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 18/10

08:35-23:05

2 stops19h 30m

San Juan Luis Munoz Marin Intl

Sat 25/10

05:25-10:50

2 stops24h 25m

£570

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 18/10

09:30-23:05

1 stop18h 35m

San Juan Luis Munoz Marin Intl

Sat 25/10

05:25-09:40

1 stop23h 15m

£590

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 £485, 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 April instead. Flights to San Juan in April, while not as cheap as those in June, still average around £489.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart on your flight to San Juan is on a Saturday when prices can be found for as low as £600. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Juan is Monday, with ticket prices averaging around £790.

What is the cheapest time of day to depart on your flight to San Juan?

In the morning is the cheapest time of day to fly from Ireland to San Juan when you can find flight prices for as low as £687. Flying to San Juan in the morning is an ideal time because this is during off-peak travel hours. Flights at midday are often more expensive, with an average ticket price of £726.

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

Best price found

£512

Fastest flight time

14h 54m

Direct flights

None

Airports in San Juan

1 airport
The best flight deal from Ireland to San Juan found on momondo in the last 72 hours is £512
The fastest flight from Ireland to San Juan takes 14h 54m
There are no direct flights from Ireland to San Juan. Popular non-direct route for this connection is Dublin Airport - San Juan Luis Munoz Marin Intl Airport.
There is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)
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  • 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