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Cheap flights from Ireland to San Juan from £532

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
24 Jun — 1 Jul1
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 19 June 2025.

Round-trip from

£548

Popular in

October

Cheapest in

April

Average price

£483
United Airlines
  • United Airlines
  • 10/7-12/8
  • 4 total stops
  • 44h 52m total
  • Ireland to San Juan
Highest demand for flights based on searches. 8% potential increase in price (£44 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Average for round-trip flights in June 2025

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 19 June 2025.

Fri 19/1214:05DUB - SJU
1 stop19h 00mMultiple Airlines
Sun 28/1206:40SJU - DUB
1 stop22h 00mMultiple Airlines
Deal found 17/6£532
Thu 10/709:50DUB - SJU
2 stops19h 12mUnited Airlines
Tue 12/801:05SJU - DUB
2 stops25h 40mUnited Airlines
Deal found 18/6£548
Mon 28/713:15DUB - SJU
1 stop15h 44mKLM
Wed 13/813:16SJU - DUB
2 stops18h 19mKLM
Deal found 17/6£568
Sun 3/811:30DUB - SJU
1 stop19h 51mJetBlue
Sun 10/812:35SJU - DUB
1 stop15h 25mJetBlue
Deal found 18/6£593
Thu 18/1206:00DUB - SJU
2 stops21h 50mDelta
Sun 28/1216:10SJU - DUB
1 stop13h 10mDelta
Deal found 17/6£602
Thu 18/1208:40DUB - SJU
2 stops18h 00mAmerican Airlines
Sun 28/1212:50SJU - DUB
2 stops17h 25mAmerican Airlines
Deal found 17/6£634

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 19 June 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 10/7

09:50-00:02

2 stops19h 12m

San Juan Luis Munoz Marin Intl

Tue 12/8

01:05-07:45

2 stops25h 40m

£548

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 28/7

13:15-23:59

1 stop15h 44m

San Juan Luis Munoz Marin Intl

Wed 13/8

13:16-12:35

2 stops18h 19m

£568

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 3/8

11:30-02:21

1 stop19h 51m

San Juan Luis Munoz Marin Intl

Sun 10/8

12:35-09:00

1 stop15h 25m

£593

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 1/8

12:15-11:32

3 stops28h 17m

San Juan Luis Munoz Marin Intl

Thu 7/8

02:40-13:15

3 stops29h 35m

£696

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 2/8

15:00-12:16

1 stop26h 16m

San Juan Luis Munoz Marin Intl

Sat 9/8

07:30-07:55

2 stops19h 25m

£780

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 3/8

12:50-23:55

2 stops16h 05m

San Juan Luis Munoz Marin Intl

Sun 10/8

08:30-04:30

2 stops15h 00m

£785

Flights are sorted by cheapest return flights first.

Deals found on 18/6

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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

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.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated 19 June 2025.

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
8.0
Very Good

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

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 £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.

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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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