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Cheap flights from Ireland to San Juan from €340

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to San Juan departing on 16/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ireland to San Juan

Recent return flight deals from Ireland to San Juan

Enter your travel dates to find the best prices.
Finnair Logo
09:30 - 23:01
DUB
-
SJU
18h 31m
1 stop
Finnair Logo
06:47 - 09:45
SJU
-
DUB
21h 58m
1 stop
€491Finnair
Mon, 4 May - Mon, 11 May
Finnair Logo
09:30 - 23:01
DUB
-
SJU
18h 31m
1 stop
Finnair Logo
06:47 - 09:45
SJU
-
DUB
21h 58m
1 stop
€516Finnair
Mon, 4 May - Mon, 11 May
Finnair Logo
09:30 - 23:01
DUB
-
SJU
18h 31m
1 stop
Finnair Logo
06:47 - 11:50
SJU
-
DUB
24h 03m
2 stops
€519Finnair
Mon, 4 May - Mon, 11 May
Finnair Logo
09:30 - 23:01
DUB
-
SJU
18h 31m
1 stop
Finnair Logo
06:47 - 11:50
SJU
-
DUB
24h 03m
2 stops
€525Finnair
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
11:30 - 00:52
DUB
-
SJU
17h 22m
1 stop
Multiple Airlines Logo
15:40 - 17:05
SJU
-
DUB
21h 25m
2 stops
€564Multiple Airlines
Sat, 7 Mar - Mon, 23 Mar
JetBlue Logo
11:40 - 00:07
DUB
-
SJU
17h 27m
1 stop
JetBlue Logo
23:59 - 09:00
SJU
-
DUB
28h 01m
1 stop
€565JetBlue
Mon, 4 May - Mon, 11 May
American Airlines Logo
11:30 - 00:52
DUB
-
SJU
17h 22m
1 stop
American Airlines Logo
05:00 - 08:40
SJU
-
DUB
23h 40m
1 stop
€582American Airlines
Sat, 7 Mar - Mon, 23 Mar
Multiple Airlines Logo
07:25 - 14:28
DUB
-
SJU
36h 03m
2 stops
Multiple Airlines Logo
17:15 - 11:20
SJU
-
DUB
13h 05m
1 stop
€590Multiple Airlines
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
08:05 - 11:55
DUB
-
SJU
32h 50m
2 stops
Multiple Airlines Logo
13:00 - 08:25
SJU
-
DUB
14h 25m
1 stop
€591Multiple Airlines
Wed, 29 Apr - Tue, 12 May
American Airlines Logo
11:30 - 23:40
DUB
-
SJU
16h 10m
1 stop
American Airlines Logo
12:30 - 17:05
SJU
-
DUB
24h 35m
2 stops
€594American Airlines
Thu, 26 Feb - Mon, 2 Mar

Finnair flights from Ireland to San Juan

Our best Finnair deals on Ireland to San Juan flight tickets
Finnair
4 May
DUB09:30Dublin
18h 31m
1 stop
SJU23:01San Juan Luis Munoz Marin Intl
11 May
SJU06:47San Juan Luis Munoz Marin Intl
21h 58m
1 stop
DUB09:45Dublin
€491
Finnair
4 May
DUB09:30Dublin
18h 31m
1 stop
SJU23:01San Juan Luis Munoz Marin Intl
11 May
SJU06:47San Juan Luis Munoz Marin Intl
21h 58m
1 stop
DUB09:45Dublin
€516
Finnair
4 May
DUB09:30Dublin
18h 31m
1 stop
SJU23:01San Juan Luis Munoz Marin Intl
11 May
SJU06:47San Juan Luis Munoz Marin Intl
24h 03m
2 stops
DUB11:50Dublin
€519

JetBlue flights from Ireland to San Juan

Our best JetBlue deals on Ireland to San Juan flight tickets
JetBlue
4 May
DUB11:40Dublin
17h 27m
1 stop
SJU00:07San Juan Luis Munoz Marin Intl
11 May
SJU23:59San Juan Luis Munoz Marin Intl
28h 01m
1 stop
DUB09:00Dublin
€565
JetBlue
29 Apr
DUB10:40Dublin
16h 32m
1 stop
SJU22:12San Juan Luis Munoz Marin Intl
12 May
SJU23:59San Juan Luis Munoz Marin Intl
28h 01m
1 stop
DUB09:00Dublin
€613
JetBlue
12 Jul
DUB10:40Dublin
19h 39m
1 stop
SJU01:19San Juan Luis Munoz Marin Intl
20 Jul
SJU13:45San Juan Luis Munoz Marin Intl
13h 35m
1 stop
DUB08:20Dublin
€702

momondo 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, momondo users made 13,528 searches. Data last updated 20 January 2026.
Use the filters below to find and compare flights from Ireland to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

09:30-23:01

1 stop18h 31m

San Juan Luis Munoz Marin Intl

Mon 11/5

06:47-09:45

1 stop21h 58m

€491

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

09:30-23:01

1 stop18h 31m

San Juan Luis Munoz Marin Intl

Mon 11/5

06:47-09:45

1 stop21h 58m

€516

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

09:30-23:01

1 stop18h 31m

San Juan Luis Munoz Marin Intl

Mon 11/5

06:47-11:50

2 stops24h 03m

€519

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

09:30-23:01

1 stop18h 31m

San Juan Luis Munoz Marin Intl

Mon 11/5

06:47-11:50

2 stops24h 03m

€525

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 7/3

11:30-00:52

1 stop17h 22m

San Juan Luis Munoz Marin Intl

Mon 23/3

15:40-17:05

2 stops21h 25m

€564

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

11:40-00:07

1 stop17h 27m

San Juan Luis Munoz Marin Intl

Mon 11/5

23:59-09:00

1 stop28h 01m

€565

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 7/3

11:30-00:52

1 stop17h 22m

San Juan Luis Munoz Marin Intl

Mon 23/3

05:00-08:40

1 stop23h 40m

€582

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

07:25-14:28

2 stops36h 03m

San Juan Luis Munoz Marin Intl

Mon 11/5

17:15-11:20

1 stop13h 05m

€590

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 29/4

08:05-11:55

2 stops32h 50m

San Juan Luis Munoz Marin Intl

Tue 12/5

13:00-08:25

1 stop14h 25m

€591

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 26/2

11:30-23:40

1 stop16h 10m

San Juan Luis Munoz Marin Intl

Mon 2/3

12:30-17:05

2 stops24h 35m

€594

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to San Juan from

How to get the cheapest flight ticket from Ireland to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan?

The cheapest month to fly to San Juan from Ireland is in May. Flight prices, which tend to average around €509, are often lower during this time because this is during the off-season. If you are unable to visit San Juan during the month of May, then departing from Ireland during the month June is also very affordable. Most momondo users find prices during this month for around €559.

Cheap Ireland to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to San Juan

Fastest flight time

16h 10m

Direct flights

None
The fastest flight from Ireland to San Juan takes 16h 10m
There are no direct flights from Ireland to San Juan. There are no popular flight routes from Ireland to San Juan.
Search flight deals

  • When did momondo last update prices for flights from Ireland to San Juan?

    Prices for flights from Ireland to San Juan refresh daily.

  • How many operators does momondo search for flights from Ireland to San Juan?

  • How old do you have to be to fly from Ireland to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The necessary travel and health documents for your San Juan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ireland to San Juan

Compare and see reviews for airlines that fly from Ireland to San Juan with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom €535Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights
American AirlinesPriceFrom €614Free CancellationRating
7.2
11,162 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to San Juan?

Finding the right flight to San Juan from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Ireland to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ireland to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ireland to San Juan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 11.5 km from San Juan
San Juan Luis Munoz Marin Intl Airport