How long is the flight from Ireland to San Juan?

Departing from Ireland to San Juan will take you 17h 38m. Airlines will cover a distance of 3963 mi.

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

What is the cheapest time of day to fly from IE to SJU?

When flying from Ireland to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£439+ Cheap Flights from Ireland to San Juan

Cheap flight deals from Ireland to San Juan

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 19 September 2026.

Fri 30/1010:45 -

1 stop16h 59m

Thu 12/1116:10 -

2 stops18h 20m

Deal found 18/9£544

Tue 22/908:55 -

2 stops19h 54m

Sat 3/1012:56 -

2 stops16h 04m

Deal found 15/9£545

Thu 5/1109:40 -

1 stop17h 38m

Sat 14/1107:00 -

1 stop21h 45m

Deal found 18/9£546

Fri 30/1009:40 -

1 stop16h 38m

Thu 12/1114:10 -

1 stop14h 35m

Deal found 17/9£548

Thu 29/1009:40 -

1 stop16h 38m

Wed 11/1114:10 -

1 stop14h 35m

Deal found 16/9£549

Fri 30/1010:45 -

1 stop16h 59m

Fri 6/1108:15 -

1 stop19h 30m

Deal found 15/9£550

Thu 15/1013:15 -

1 stop15h 29m

Thu 5/1115:59 -

2 stops18h 31m

Deal found 16/9£550

Sat 3/1013:15 -

1 stop15h 34m

Wed 7/1007:15 -

1 stop20h 30m

Deal found 17/9£552

Sat 3/1008:55 -

2 stops19h 54m

Wed 7/1014:02 -

2 stops17h 38m

Deal found 17/9£555

Tue 22/910:40 -

1 stop30h 22m

Sat 3/1018:55 -

1 stop32h 25m

Deal found 19/9£565

Find flight deals from Ireland to San Juan

Round-trip from	£544
One-way from	£439
Popular in	July
Cheapest in	May
Average price	£575

Air France
30/10-12/11
3 total stops
35h 19m total
Ireland to San Juan

Search Deals

JetBlue
26/9-31/12
1 total stop
13h 04m total
Ireland to San Juan

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£23 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Sat 26/9

11:30-19:34

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£439

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Thu 5/11

09:40-23:18

1 stop17h 38m

San Juan Luis Munoz Marin Intl

Sat 14/11

07:00-08:45

1 stop21h 45m

£546

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 30/10

10:45-23:44

1 stop16h 59m

San Juan Luis Munoz Marin Intl

Thu 12/11

14:50-09:45

1 stop14h 55m

£546

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Thu 29/10

09:40-22:18

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Wed 11/11

14:10-08:45

1 stop14h 35m

£549

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 30/10

10:45-23:44

1 stop16h 59m

San Juan Luis Munoz Marin Intl

Fri 6/11

08:15-07:45

1 stop19h 30m

£550

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Thu 15/10

13:15-23:44

1 stop15h 29m

San Juan Luis Munoz Marin Intl

Thu 5/11

15:59-14:30

2 stops18h 31m

£550

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Thu 1/10

13:15-23:49

1 stop15h 34m

San Juan Luis Munoz Marin Intl

Mon 5/10

07:30-10:00

1 stop21h 30m

£553

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Sat 3/10

08:55-23:49

2 stops19h 54m

San Juan Luis Munoz Marin Intl

Wed 7/10

14:02-12:40

2 stops17h 38m

£555

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Mon 12/10

05:55-15:14

2 stops38h 19m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£578

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 20/1

09:30-00:36

1 stop19h 06m

San Juan Luis Munoz Marin Intl

Wed 27/1

13:00-07:30

1 stop14h 30m

£771

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Sorted by cheapest first

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.

DUB-SJU

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

IE0-PR1

DUB-SJU

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Ireland to San Juan?
Departing from Ireland to San Juan will take you 17h 38m. Airlines will cover a distance of 3963 mi.
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.

See more FAQs

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Alternative routes for Ireland to San Juan

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How does Cheapflights help users find flights from Ireland to San Juan?

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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Cheap flights from Ireland to San Juan from £439

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to San Juan

Cheapest flights from Ireland to San JuanExplore 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 19 September 2026.

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 19 September 2026.

Best flights from Ireland to San JuanDiscover carefully curated flight deals from Ireland to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Discover carefully curated flight deals from Ireland to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Last-minute flights from Ireland to San JuanDiscover last-minute flight deals from Ireland to San Juan. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Ireland to San Juan. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Ireland to San JuanSearch for one-way flight options from Ireland to San Juan. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Search for one-way flight options from Ireland to San Juan. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

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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.

Cheapflights Insights

Related info for your journey

How long is the flight from Ireland to San Juan?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Juan by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Ireland to San Juan by cabin class

Find flights from Ireland to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ireland and San Juan flights

Browse other Ireland and San Juan flight options. Last updated on 19 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Ireland to San Juan?

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

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

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

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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 19 September 2026.

Best flights from Ireland to San Juan
Discover carefully curated flight deals from Ireland to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Last-minute flights from Ireland to San Juan
Discover last-minute flight deals from Ireland to San Juan. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Ireland to San Juan
Search for one-way flight options from Ireland to San Juan. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.