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Cheap flights from Dublin to San Juan from £379

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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SJU
5 May — 12 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to San Juan
Explore the most affordable flight options available from Dublin to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 April 2026.

Sat 2/511:30
DUB
-
SJU
1 stop17h 37m
JetBlue
Fri 15/519:25
SJU
-
DUB
1 stop32h 35m
JetBlue
Deal found 31/3£450
Thu 30/410:40
DUB
-
SJU
1 stop30h 20m
JetBlue
Fri 15/522:55
SJU
-
DUB
1 stop28h 25m
JetBlue
Deal found 4/4£451
Wed 20/511:30
DUB
-
SJU
1 stop19h 37m
JetBlue
Wed 27/513:27
SJU
-
DUB
1 stop13h 53m
JetBlue
Deal found 2/4£454
Tue 19/511:30
DUB
-
SJU
1 stop13h 30m
JetBlue
Tue 26/507:20
SJU
-
DUB
1 stop20h 00m
JetBlue
Deal found 4/4£484
Thu 7/511:30
DUB
-
SJU
1 stop14h 34m
JetBlue
Mon 11/514:35
SJU
-
DUB
1 stop13h 25m
JetBlue
Deal found 1/4£514
Wed 23/911:30
DUB
-
SJU
1 stop16h 12m
JetBlue
Sun 27/910:30
SJU
-
DUB
1 stop17h 30m
JetBlue
Deal found 3/4£520
Tue 19/508:35
DUB
-
SJU
2 stops18h 30m
British Airways
Tue 26/506:20
SJU
-
DUB
1 stop19h 10m
British Airways
Deal found 4/4£575
Wed 8/412:40
DUB
-
SJU
1 stop14h 25m
British Airways
Fri 24/410:03
SJU
-
DUB
2 stops18h 37m
British Airways
Deal found 31/3£577
Mon 13/409:30
DUB
-
SJU
1 stop18h 32m
Finnair
Mon 20/406:45
SJU
-
DUB
1 stop22h 00m
Finnair
Deal found 31/3£578

Find flight deals from Dublin to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 April 2026.

Round-trip from

£450

One-way from

£379

Popular in

December

Cheapest in

June

Average price

£577
JetBlue
  • JetBlue
  • 2/5-15/5
  • 2 total stops
  • 50h 12m total
  • Dublin to San Juan
Search Deals
JetBlue
  • JetBlue
  • 6/7
  • 1 total stop
  • 19h 58m total
  • Dublin to San Juan
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin 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 5 April 2026.
Use the filters below to find and compare flights from Dublin to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 2/5

11:30-00:07

1 stop17h 37m

San Juan Luis Munoz Marin Intl

Fri 15/5

19:25-09:00

1 stop32h 35m

£450

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 30/4

10:40-12:00

1 stop30h 20m

San Juan Luis Munoz Marin Intl

Fri 15/5

22:55-08:20

1 stop28h 25m

£451
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 7/5

11:30-21:04

1 stop14h 34m

San Juan Luis Munoz Marin Intl

Mon 11/5

14:35-09:00

1 stop13h 25m

£514

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 23/9

11:30-22:42

1 stop16h 12m

San Juan Luis Munoz Marin Intl

Sun 27/9

10:30-09:00

1 stop17h 30m

£520

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 18/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Tue 21/4

13:25-12:05

2 stops17h 40m

£597

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 30/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Wed 13/5

11:43-09:40

2 stops16h 57m

£619

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 2/5

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Fri 15/5

11:43-09:40

2 stops16h 57m

£619

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 19/5

08:35-22:05

2 stops18h 30m

San Juan Luis Munoz Marin Intl

Tue 26/5

14:56-14:35

2 stops18h 39m

£619

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 6/5

08:40-22:05

2 stops18h 25m

San Juan Luis Munoz Marin Intl

Sun 10/5

11:43-09:40

2 stops16h 57m

£631

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 30/4

07:00-21:24

2 stops19h 24m

San Juan Luis Munoz Marin Intl

Fri 15/5

13:25-06:30

1 stop12h 05m

£634

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 13 resultsSorted by cheapest first
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Best time to book a flight from Dublin to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Dublin 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 Dublin to San Juan

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

Currently, May is the cheapest month in which you can book a flight from Dublin to San Juan (average of £401). Flying from Dublin to San Juan in September is currently the most expensive (average of £612). 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.

How much does it cost for a return flight from Dublin to San Juan?

Related info for your journey

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

  • What airport do you fly from for flights from Dublin to San Juan?

    If you book a flight to San Juan from Dublin, you will be flying from Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 0 flights from Dublin to San Juan per day from 0 different airlines.

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

    Departing from Dublin to San Juan will take you 17h 37m. Dublin and San Juan are separated by a distance of 3963 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dublin 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 Dublin to San Juan?

    Currently, May is the cheapest month in which you can book a flight from Dublin to San Juan (average of £401). Flying from Dublin to San Juan in September is currently the most expensive (average of £612). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dublin to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Luis Munoz Marin Intl flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Dublin to San Juan flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to San Juan.

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

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

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

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