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Cheap flights from Ireland to San Juan from £552

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ireland to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to San Juan
Explore the most affordable flight options available from Ireland to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Mon 24/1111:30DUB - SJU
1 stop16h 22mMultiple Airlines
Mon 1/1206:25SJU - DUB
1 stop22h 15mMultiple Airlines
Deal found 13/11£552
Thu 4/1211:30DUB - SJU
2 stops26h 39mMultiple Airlines
Sun 14/1207:00SJU - DUB
1 stop20h 10mMultiple Airlines
Deal found 12/11£555
Mon 22/1212:55DUB - SJU
1 stop20h 39mMultiple Airlines
Sun 18/106:30SJU - DUB
1 stop22h 10mMultiple Airlines
Deal found 12/11£611
Thu 4/1209:30DUB - SJU
2 stops16h 52mUnited Airlines
Sat 13/1202:05SJU - DUB
2 stops26h 05mUnited Airlines
Deal found 12/11£676
Mon 22/1212:05DUB - SJU
1 stop14h 17mUnited Airlines
Sat 17/102:05SJU - DUB
2 stops26h 05mUnited Airlines
Deal found 12/11£738
Wed 31/1206:40DUB - SJU
2 stops18h 31mBritish Airways
Thu 8/114:28SJU - DUB
2 stops15h 22mBritish Airways
Deal found 13/11£739
Wed 31/1213:00DUB - SJU
1 stop29h 59mMultiple Airlines
Thu 8/106:30SJU - DUB
1 stop22h 10mMultiple Airlines
Deal found 13/11£753

Cheap flight deals from Ireland to San Juan

Keep the following information in mind while searching for Ireland to San Juan flight deals. Data was last updated 14 November 2025.

Round-trip from

£544

Popular in

September

Cheapest in

May

Average price

£612
British Airways
  • British Airways
  • 23/1-25/1
  • 3 total stops
  • 42h 04m total
  • Ireland to San Juan
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 14 November 2025.
Use the filters below to find and compare flights from Ireland to San Juan that are best for you.

Fly from

Ireland

Fly to

San Juan

Route

Depart

Return

Price

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 4/12

11:30-23:52

1 stop16h 22m

San Juan Luis Munoz Marin Intl

Sun 14/12

07:00-07:10

1 stop20h 10m

£552

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 3/4

12:40-10:40

1 stop27h 00m

San Juan Luis Munoz Marin Intl

Fri 10/4

08:30-09:55

1 stop20h 25m

£592

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

11:00-12:00

1 stop30h 00m

San Juan Luis Munoz Marin Intl

Fri 24/4

13:15-09:15

1 stop15h 00m

£593

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 22/12

12:55-09:35

2 stops24h 40m

San Juan Luis Munoz Marin Intl

Sun 18/1

13:24-08:40

2 stops15h 16m

£614

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 1/4

08:55-22:18

2 stops18h 23m

San Juan Luis Munoz Marin Intl

Sun 5/4

17:10-08:45

1 stop34h 35m

£632

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 22/2

04:25-01:50

2 stops25h 25m

£573

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 28/12

12:55-05:34

1 stop20h 39m

£590

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Best time to book a flight from Ireland to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to San Juan

What is the cheapest month to book a flight from Ireland to San Juan?

Currently, April is the cheapest month in which you can book a flight from Ireland to San Juan (average of £427). Flying from Ireland to San Juan in September is currently the most expensive (average of £821). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ireland to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Ireland to San Juan that include hotel bookings?

    Yes. In addition to deals on Ireland to San Juan flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to San Juan.

  • Can I find deals for business class flights from Ireland to San Juan?

    Yes. Cheapflights offers flight deals from Ireland to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to San Juan?

    Currently, April is the cheapest month in which you can book a flight from Ireland to San Juan (average of £427). Flying from Ireland to San Juan in September is currently the most expensive (average of £821). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from Ireland to San Juan?

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Can Cheapflights find flights from Ireland to San Juan with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to San Juan flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ireland to San Juan become cheaper?

Yes, Cheapflights offers price alerts on Ireland to San Juan flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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