Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Ireland to San Juan from £316

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 7/4. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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.
American Airlines Logo
15:10 - 22:35DUB-SJU
35h 25m2 stops
American Airlines Logo
06:40 - 09:50SJU-DUB
23h 10m2 stops
£480American Airlines
Find Deal
Wed, 18 Feb - Mon, 2 Mar
Multiple Airlines Logo
11:30 - 22:35DUB-SJU
15h 05m2 stops
Multiple Airlines Logo
06:40 - 08:40SJU-DUB
22h 00m1 stop
£495Multiple Airlines
Find Deal
Wed, 18 Feb - Mon, 2 Mar
British Airways Logo
20:40 - 23:30DUB-SJU
30h 50m2 stops
British Airways Logo
06:40 - 08:40SJU-DUB
22h 00m1 stop
£496British Airways
Find Deal
Tue, 17 Feb - Sun, 1 Mar
Multiple Airlines Logo
12:55 - 05:34DUB-SJU
20h 39m1 stop
Multiple Airlines Logo
07:00 - 08:40SJU-DUB
21h 40m1 stop
£497Multiple Airlines
Find Deal
Mon, 22 Dec - Sun, 18 Jan
American Airlines Logo
11:30 - 23:30DUB-SJU
16h 00m1 stop
American Airlines Logo
14:40 - 08:40SJU-DUB
14h 00m1 stop
£513American Airlines
Find Deal
Wed, 18 Feb - Mon, 2 Mar
British Airways Logo
09:30 - 00:10DUB-SJU
19h 40m1 stop
British Airways Logo
11:50 - 09:40SJU-DUB
16h 50m2 stops
£530British Airways
Find Deal
Wed, 8 Apr - Fri, 24 Apr
KLM Logo
10:45 - 23:58DUB-SJU
17h 13m1 stop
KLM Logo
18:17 - 07:45SJU-DUB
33h 28m1 stop
£584KLM
Find Deal
Tue, 17 Feb - Sun, 1 Mar
KLM Logo
10:45 - 23:58DUB-SJU
17h 13m1 stop
KLM Logo
18:17 - 07:45SJU-DUB
33h 28m1 stop
£613KLM
Find Deal
Wed, 18 Feb - Sun, 1 Mar
United Airlines Logo
09:00 - 22:22DUB-SJU
17h 22m2 stops
United Airlines Logo
02:05 - 08:10SJU-DUB
26h 05m2 stops
£683United Airlines
Find Deal
Wed, 18 Feb - Sun, 1 Mar
United Airlines Logo
13:35 - 00:36DUB-SJU
15h 01m1 stop
United Airlines Logo
02:05 - 08:10SJU-DUB
26h 05m2 stops
£720United Airlines
Find Deal
Mon, 22 Dec - Sat, 17 Jan

American Airlines flights from Ireland to San Juan

Our best American Airlines deals on Ireland to San Juan flight tickets
American Airlines
18 Feb
DUB15:10Dublin
35h 25m
2 stops
SJU22:35San Juan Luis Munoz Marin Intl
2 Mar
SJU06:40San Juan Luis Munoz Marin Intl
23h 10m
2 stops
DUB09:50Dublin
£480
Find similar
American Airlines
18 Feb
DUB11:30Dublin
16h 00m
1 stop
SJU23:30San Juan Luis Munoz Marin Intl
2 Mar
SJU14:40San Juan Luis Munoz Marin Intl
14h 00m
1 stop
DUB08:40Dublin
£513
Find similar
American Airlines
17 Feb
DUB11:30Dublin
15h 05m
2 stops
SJU22:35San Juan Luis Munoz Marin Intl
1 Mar
SJU16:50San Juan Luis Munoz Marin Intl
17h 30m
2 stops
DUB14:20Dublin
£516
Find similar

British Airways flights from Ireland to San Juan

Our best British Airways deals on Ireland to San Juan flight tickets
British Airways
17 Feb
DUB20:40Dublin
30h 50m
2 stops
SJU23:30San Juan Luis Munoz Marin Intl
1 Mar
SJU06:40San Juan Luis Munoz Marin Intl
22h 00m
1 stop
DUB08:40Dublin
£496
Find similar
British Airways
8 Apr
DUB09:30Dublin
19h 40m
1 stop
SJU00:10San Juan Luis Munoz Marin Intl
24 Apr
SJU11:50San Juan Luis Munoz Marin Intl
16h 50m
2 stops
DUB09:40Dublin
£530
Find similar
British Airways
8 Apr
DUB09:30Dublin
19h 40m
1 stop
SJU00:10San Juan Luis Munoz Marin Intl
24 Apr
SJU11:50San Juan Luis Munoz Marin Intl
16h 50m
2 stops
DUB09:40Dublin
£531
Find similar

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 279,928 searches. Data last updated 10 October 2025.
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

Wed 18/2

15:10-22:35

2 stops35h 25m

San Juan Luis Munoz Marin Intl

Mon 2/3

06:40-09:50

2 stops23h 10m

£480

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 18/2

11:30-22:35

2 stops15h 05m

San Juan Luis Munoz Marin Intl

Mon 2/3

06:40-08:40

1 stop22h 00m

£495

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 17/2

20:40-23:30

2 stops30h 50m

San Juan Luis Munoz Marin Intl

Sun 1/3

06:40-08:40

1 stop22h 00m

£496

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 22/12

12:55-05:34

1 stop20h 39m

San Juan Luis Munoz Marin Intl

Sun 18/1

07:00-08:40

1 stop21h 40m

£497

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 18/2

11:30-23:30

1 stop16h 00m

San Juan Luis Munoz Marin Intl

Mon 2/3

14:40-08:40

1 stop14h 00m

£513

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 8/4

09:30-00:10

1 stop19h 40m

San Juan Luis Munoz Marin Intl

Fri 24/4

11:50-09:40

2 stops16h 50m

£530

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 17/2

10:45-23:58

1 stop17h 13m

San Juan Luis Munoz Marin Intl

Sun 1/3

18:17-07:45

1 stop33h 28m

£584

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 18/2

10:45-23:58

1 stop17h 13m

San Juan Luis Munoz Marin Intl

Sun 1/3

18:17-07:45

1 stop33h 28m

£613

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 18/2

09:00-22:22

2 stops17h 22m

San Juan Luis Munoz Marin Intl

Sun 1/3

02:05-08:10

2 stops26h 05m

£683

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 22/12

13:35-00:36

1 stop15h 01m

San Juan Luis Munoz Marin Intl

Sat 17/1

02:05-08:10

2 stops26h 05m

£720

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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 £445, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to San Juan from Ireland during June instead. Flights to San Juan in June, while not as cheap as those in May, still average around £488.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart on your flight to San Juan is on a Saturday when prices can be found for as low as £604. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Juan is Monday, with ticket prices averaging around £795.

What is the cheapest time of day to depart on your flight to San Juan?

In the morning is the cheapest time of day to fly from Ireland to San Juan when you can find flight prices for as low as £692. Flying to San Juan in the morning is an ideal time because this is during off-peak travel hours. Flights at midday are often more expensive, with an average ticket price of £731.

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

Direct flights

None
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 are updated daily.

  • 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 required travel and health documents for your San Juan trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ireland to San Juan for you.

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

Yes. momondo enables you to select and highlight flights to San Juan from Ireland with this policy.

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.

An easier way to manage your San Juan trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 9/11
Sun 16/11
By creating a price alert you accept our terms of use and privacy policy.

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 7.1 mi from San Juan
San Juan Luis Munoz Marin Intl Airport