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Cheap flights from Ireland to San Juan from £522

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
1 Sep — 8 Sep1
1 adult

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 27 August 2025.

Round-trip from

£522

One-way from

£522

Popular in

October

Cheapest in

June

Average price

£621
JetBlue
  • JetBlue
  • 23/9-6/10
  • 2 total stops
  • 27h 49m total
  • Ireland to San Juan
Search Deals
Delta
  • Delta
  • 23/2
  • 1 total stop
  • 14h 45m total
  • Ireland to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£57 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 August 2025
Search Deals

Find flight deals from Ireland to San Juan

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 27 August 2025.

Tue 23/911:30DUB - SJU
1 stop14h 54mJetBlue
Mon 6/1014:25SJU - DUB
1 stop12h 55mJetBlue
Deal found 26/8£522
Fri 5/1213:25DUB - SJU
2 stops27h 33mDelta
Mon 8/1218:20SJU - DUB
2 stops17h 25mDelta
Deal found 26/8£534
Mon 22/905:55DUB - SJU
2 stops22h 49mDelta
Mon 6/1014:31SJU - DUB
1 stop13h 14mDelta
Deal found 26/8£559
Mon 22/909:10DUB - SJU
2 stops19h 34mMultiple Airlines
Mon 6/1013:06SJU - DUB
2 stops16h 39mMultiple Airlines
Deal found 26/8£563
Thu 9/1009:10DUB - SJU
2 stops19h 46mMultiple Airlines
Thu 16/1013:06SJU - DUB
2 stops16h 39mMultiple Airlines
Deal found 25/8£565
Thu 11/910:00DUB - SJU
2 stops17h 00mDelta
Mon 15/913:25SJU - DUB
1 stop16h 20mDelta
Deal found 26/8£566
Tue 23/909:10DUB - SJU
2 stops19h 37mMultiple Airlines
Mon 6/1013:06SJU - DUB
2 stops16h 39mMultiple Airlines
Deal found 26/8£576

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 27 August 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

Tue 23/9

11:30-21:24

1 stop14h 54m

San Juan Luis Munoz Marin Intl

Mon 6/10

14:25-08:20

1 stop12h 55m

£522

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/12

13:25-12:58

2 stops27h 33m

San Juan Luis Munoz Marin Intl

Mon 8/12

18:20-15:45

2 stops17h 25m

£534

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 23/9

05:55-23:47

2 stops22h 52m

San Juan Luis Munoz Marin Intl

Mon 6/10

07:15-08:45

1 stop20h 30m

£559

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 22/9

05:55-23:44

2 stops22h 49m

San Juan Luis Munoz Marin Intl

Mon 6/10

14:31-08:45

1 stop13h 14m

£559

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 22/9

09:10-23:44

2 stops19h 34m

San Juan Luis Munoz Marin Intl

Mon 6/10

13:06-10:45

2 stops16h 39m

£563

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 9/10

09:10-23:56

2 stops19h 46m

San Juan Luis Munoz Marin Intl

Thu 16/10

13:06-10:45

2 stops16h 39m

£565

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 23/2

10:45-23:49

2 stops17h 04m

£522

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 23/2

09:45-23:49

1 stop18h 04m

£522

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 20/12

11:30-09:36

2 stops26h 06m

£526

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 22/2

04:25-01:51

2 stops25h 26m

£561

Flights are sorted by cheapest return flights first.

Deals found on 27/8

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 £631). Flying from Ireland to San Juan in July is currently the most expensive (average of £1,027). 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.

  • How long is the flight from Ireland to San Juan?

    Departing from Ireland to San Juan will take you 14h 54m. Airlines will cover a distance of 3963 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 £631). Flying from Ireland to San Juan in July is currently the most expensive (average of £1,027). 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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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ireland to San Juan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from Ireland to San Juan by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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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