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Cheap flights from Ireland to San Juan from £413

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
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

£476

One-way from

£413

Popular in

October

Cheapest in

May

Average price

£791
British Airways
  • British Airways
  • 12/1-5/2
  • 4 total stops
  • 35h 50m total
  • Ireland to San Juan
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23/2
  • 23/2
  • 1 total stop
  • 16h 00m total
  • Ireland to San Juan
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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 18 September 2025.

Fri 31/1011:30DUB - SJU
1 stop16h 29mBritish Airways
Thu 13/1112:55SJU - DUB
2 stops16h 55mBritish Airways
Deal found 17/9£480
Fri 31/1011:30DUB - SJU
1 stop16h 29mAmerican Airlines
Fri 7/1118:42SJU - DUB
2 stops16h 23mAmerican Airlines
Deal found 16/9£483
Fri 31/1012:55DUB - SJU
2 stops26h 11mMultiple Airlines
Fri 7/1108:20SJU - DUB
2 stops20h 20mMultiple Airlines
Deal found 16/9£490
Fri 5/1208:50DUB - SJU
2 stops19h 13mKLM
Mon 8/1213:57SJU - DUB
1 stop13h 48mKLM
Deal found 17/9£491
Fri 31/1012:55DUB - SJU
2 stops26h 11mMultiple Airlines
Thu 13/1112:55SJU - DUB
2 stops15h 45mMultiple Airlines
Deal found 17/9£493
Fri 5/1205:55DUB - SJU
2 stops22h 08mDelta
Mon 8/1207:00SJU - DUB
1 stop20h 45mDelta
Deal found 15/9£535
Fri 5/1209:00DUB - SJU
2 stops40h 00mUnited Airlines
Sun 7/1202:05SJU - DUB
2 stops26h 05mUnited Airlines
Deal found 17/9£662

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 18 September 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

Mon 12/1

08:50-23:40

2 stops18h 50m

San Juan Luis Munoz Marin Intl

Thu 5/2

12:50-09:50

2 stops17h 00m

£476

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 31/10

11:30-23:59

1 stop16h 29m

San Juan Luis Munoz Marin Intl

Fri 7/11

18:42-15:05

2 stops16h 23m

£483

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 6/2

11:30-23:40

1 stop16h 10m

San Juan Luis Munoz Marin Intl

Mon 16/2

14:40-08:40

1 stop14h 00m

£490

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 31/10

09:45-21:59

1 stop16h 14m

San Juan Luis Munoz Marin Intl

Fri 7/11

14:06-08:45

1 stop14h 39m

£490

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 12/1

11:30-23:40

1 stop16h 10m

San Juan Luis Munoz Marin Intl

Thu 5/2

17:01-08:40

1 stop11h 39m

£490

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 31/10

12:55-11:06

2 stops26h 11m

San Juan Luis Munoz Marin Intl

Fri 7/11

08:20-08:40

2 stops20h 20m

£490

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 5/12

08:50-00:03

2 stops19h 13m

San Juan Luis Munoz Marin Intl

Mon 8/12

13:57-07:45

1 stop13h 48m

£491

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 31/10

09:45-11:36

1 stop29h 51m

San Juan Luis Munoz Marin Intl

Thu 13/11

14:10-08:45

1 stop14h 35m

£493

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 31/10

12:55-11:06

2 stops26h 11m

San Juan Luis Munoz Marin Intl

Thu 13/11

12:55-08:40

2 stops15h 45m

£493

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 23/2

11:30-23:30

1 stop16h 00m

£413

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 11 results
1
2

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 16h 29m. 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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