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Flights to San Juan

€331 Cheap flights to San Juan

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to San Juan departing on 18/8. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Ireland to San Juan

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
10:40 - 22:27DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
16h 47m1 stop Boston Logan Intl
JetBlue Logo
06:00 - 08:20SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
21h 20m1 stop Boston Logan Intl
€609JetBlue
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
09:50 - 18:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
13h 55m1 stop Madrid Barajas
Multiple Airlines Logo
11:51 - 09:40SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
16h 49m2 stops Miami London Heathrow
€639Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
JetBlue Logo
11:30 - 16:12DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 42m1 stop New York John F Kennedy Intl
JetBlue Logo
06:00 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
22h 00m1 stop New York John F Kennedy Intl
€641JetBlue
Fri, 25 Sep - Sat, 10 Oct
JetBlue Logo
11:30 - 16:12DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
33h 42m1 stop New York John F Kennedy Intl
JetBlue Logo
10:30 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
17h 30m1 stop New York John F Kennedy Intl
€642JetBlue
Fri, 25 Sep - Thu, 8 Oct
JetBlue Logo
11:30 - 13:39DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
31h 09m1 stop New York John F Kennedy Intl
JetBlue Logo
10:30 - 09:00SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
17h 30m1 stop New York John F Kennedy Intl
€643JetBlue
Mon, 21 Sep - Tue, 6 Oct
Multiple Airlines Logo
12:40 - 14:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
31h 05m1 stop Dallas/Fort Worth
Multiple Airlines Logo
06:30 - 06:30SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
19h 00m2 stops Miami Philadelphia
€649Multiple Airlines
Fri, 25 Sep - Sat, 10 Oct
Multiple Airlines Logo
12:40 - 14:45DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
31h 05m1 stop Dallas/Fort Worth
Multiple Airlines Logo
06:30 - 06:25SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
18h 55m2 stops Miami Philadelphia
€649Multiple Airlines
Thu, 1 Oct - Wed, 14 Oct
American Airlines Logo
13:45 - 14:38DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
29h 53m2 stops Philadelphia Miami
American Airlines Logo
15:47 - 09:35SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
12h 48m1 stop Charlotte Douglas
€660American Airlines
Wed, 2 Sep - Sun, 6 Sep
American Airlines Logo
13:45 - 13:24DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
28h 39m1 stop Philadelphia
American Airlines Logo
06:00 - 06:30SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
19h 30m2 stops Miami Philadelphia
€660American Airlines
Wed, 2 Sep - Sun, 6 Sep
American Airlines Logo
11:45 - 14:51DUB  Dublin-SJU San Juan Luis Munoz Marin Intl
32h 06m1 stop Charlotte Douglas
American Airlines Logo
15:44 - 09:45SJU  San Juan Luis Munoz Marin Intl-DUB Dublin
37h 01m1 stop Dallas/Fort Worth
€660American Airlines
Wed, 2 Sep - Sun, 6 Sep

momondo Fare Finder

 
Locate flights to San Juan that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 13,528 searches and data was last updated on 11 August 2026.
Use the filters below to find and compare flights to San Juan that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

10:40-22:27

1 stop16h 47m

San Juan Luis Munoz Marin Intl

Fri 2/10

06:00-08:20

1 stop21h 20m

€609
Fastest return journey

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Sat 5/9

09:50-18:45

1 stop13h 55m

San Juan Luis Munoz Marin Intl

Sat 12/9

11:51-09:40

2 stops16h 49m

€639

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

11:30-16:12

1 stop33h 42m

San Juan Luis Munoz Marin Intl

Sat 10/10

06:00-09:00

1 stop22h 00m

€641

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

11:30-16:12

1 stop33h 42m

San Juan Luis Munoz Marin Intl

Thu 8/10

10:30-09:00

1 stop17h 30m

€642

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Mon 21/9

11:30-13:39

1 stop31h 09m

San Juan Luis Munoz Marin Intl

Tue 6/10

10:30-09:00

1 stop17h 30m

€643

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Fri 25/9

12:40-14:45

1 stop31h 05m

San Juan Luis Munoz Marin Intl

Sat 10/10

06:30-06:30

2 stops19h 00m

€649

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Thu 1/10

12:40-14:45

1 stop31h 05m

San Juan Luis Munoz Marin Intl

Wed 14/10

06:30-06:25

2 stops18h 55m

€649

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 2/9

13:45-14:38

2 stops29h 53m

San Juan Luis Munoz Marin Intl

Sun 6/9

15:47-09:35

1 stop12h 48m

€660

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 2/9

13:45-13:24

1 stop28h 39m

San Juan Luis Munoz Marin Intl

Sun 6/9

06:00-06:30

2 stops19h 30m

€660

DublinSan Juan

DUB Dublin - SJU San Juan Luis Munoz Marin Intl

DUBSJU

Dublin

Wed 2/9

11:45-14:51

1 stop32h 06m

San Juan Luis Munoz Marin Intl

Sun 6/9

15:44-09:45

1 stop37h 01m

€660

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

San Juan flights insights and trends

Explore insights for your San Juan flight to craft the best travel plan

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 €551, 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 €633.

Cheapest flights to San Juan

Find the cheapest flights to San Juan from your nearest city or airport
Find flights from Dublin to San Juan Luis Munoz Marin Intl Airport
CHEAPEST MONTH TO FLY TO SAN JUAN FROM DUBLINMay22% cheaperFlying from Dublin to San Juan costs on average just €551 in May
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM DUBLINJuly21% more expensiveIt costs about €852 for flights to San Juan from Dublin in July
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM DUBLINApril733% more users visitedMore momondo users searched in flights to San Juan from Dublin in April than any other month

Cheap San Juan flight deals and tips

Summary info about San Juan flight prices, duration and airlines

Best One-Way Price

€331

Best Round-Trip Price

€609

Fastest flight time

14h 20m

Popular in

July
The best one-way flight price to San Juan from Ireland in the last 5 days is €331 (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
The best return flight price to San Juan from Ireland in the last 5 days is €609 (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
The fastest flight to San Juan from Ireland takes 14h 20m (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
July has the highest demand for flights to San Juan, with a 4% price increase on average.
Search Deals

Frequently asked questions about flying to San Juan

Is there an alternative airport near San Juan?

San Juan Isla Grande Airport, Ceiba J. Aponte de la Torre Airport, Ponce Mercedita Airport, Vieques Airport or Culebra Airport can be an alternative airport used for travel to San Juan.

Are there flights to San Juan Antiguo?

Yes, you can get a flight ticket to San Juan Luis Munoz Marin Intl if you want to reach San Juan Antiguo. It is the nearest San Juan airport (12.5 km away).

How long does it take to fly to San Juan?

The flight from Ireland to San Juan depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Dublin (a popular airport in Ireland) to San Juan Luis Munoz Marin Intl (the most popular airport in San Juan), then the flight time is 14h on average. If you fly from Cork (another popular airport in Ireland) to San Juan Luis Munoz Marin Intl, then the average flight time is .

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

Prices for flights to San Juan are refreshed on a daily basis.

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

As of August 2026, there are 2 operators available to choose from for flights to San Juan.

How old do you have to be to fly to San Juan?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to San Juan.

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

The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to San Juan. Millions of users trust and use momondo every year so you are in good company.

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

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

How can momondo help me find flights to San Juan?

Once all potential San Juan flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

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

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan and alert you when they change.

An easier way to manage your San Juan trip

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Popular Flights to San Juan

Popular routes according to searches in the past day on momondo
Dublin to San Juan Flightsfrom €703