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Flights to San Juan

€337 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 24/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
11:40 - 21:01
DUB
-
SJU
14h 21m
1 stop
JetBlue Logo
21:59 - 09:00
SJU
-
DUB
30h 01m
1 stop
€507JetBlue
Mon, 4 May - Mon, 11 May
JetBlue Logo
11:40 - 13:29
DUB
-
SJU
30h 49m
1 stop
JetBlue Logo
21:59 - 09:00
SJU
-
DUB
30h 01m
1 stop
€510JetBlue
Mon, 4 May - Mon, 11 May
American Airlines Logo
12:40 - 22:05
DUB
-
SJU
14h 25m
1 stop
American Airlines Logo
13:25 - 06:30
SJU
-
DUB
12h 05m
1 stop
€584American Airlines
Sat, 11 Apr - Tue, 21 Apr
JetBlue Logo
11:40 - 22:47
DUB
-
SJU
16h 07m
1 stop
JetBlue Logo
13:29 - 08:20
SJU
-
DUB
13h 51m
1 stop
€589JetBlue
Tue, 2 Jun - Tue, 9 Jun
JetBlue Logo
11:40 - 01:38
DUB
-
SJU
18h 58m
1 stop
JetBlue Logo
15:25 - 08:20
SJU
-
DUB
11h 55m
1 stop
€593JetBlue
Thu, 4 Jun - Wed, 10 Jun
JetBlue Logo
11:40 - 00:07
DUB
-
SJU
17h 27m
1 stop
JetBlue Logo
19:15 - 09:00
SJU
-
DUB
32h 45m
1 stop
€595JetBlue
Wed, 6 May - Wed, 13 May
JetBlue Logo
10:40 - 12:02
DUB
-
SJU
30h 22m
1 stop
JetBlue Logo
13:29 - 08:20
SJU
-
DUB
13h 51m
1 stop
€595JetBlue
Sat, 6 Jun - Wed, 10 Jun
American Airlines Logo
12:40 - 22:05
DUB
-
SJU
14h 25m
1 stop
American Airlines Logo
13:25 - 06:30
SJU
-
DUB
12h 05m
1 stop
€601American Airlines
Tue, 7 Apr - Mon, 20 Apr
JetBlue Logo
11:40 - 21:01
DUB
-
SJU
14h 21m
1 stop
JetBlue Logo
10:00 - 09:00
SJU
-
DUB
18h 00m
1 stop
€606JetBlue
Sat, 9 May - Sat, 23 May
JetBlue Logo
10:40 - 02:39
DUB
-
SJU
20h 59m
1 stop
JetBlue Logo
06:25 - 09:00
SJU
-
DUB
21h 35m
1 stop
€610JetBlue
Thu, 23 Apr - Thu, 7 May

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 22 March 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 - SJU

DUBSJU

Dublin

Mon 4/5

11:40-21:01

1 stop14h 21m

San Juan Luis Munoz Marin Intl

Mon 11/5

21:59-09:00

1 stop30h 01m

€507

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 4/5

11:40-13:29

1 stop30h 49m

San Juan Luis Munoz Marin Intl

Mon 11/5

21:59-09:00

1 stop30h 01m

€510
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 11/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Tue 21/4

13:25-06:30

1 stop12h 05m

€584

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 2/6

11:40-22:47

1 stop16h 07m

San Juan Luis Munoz Marin Intl

Tue 9/6

13:29-08:20

1 stop13h 51m

€589

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 4/6

11:40-01:38

1 stop18h 58m

San Juan Luis Munoz Marin Intl

Wed 10/6

15:25-08:20

1 stop11h 55m

€593

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 6/5

11:40-00:07

1 stop17h 27m

San Juan Luis Munoz Marin Intl

Wed 13/5

19:15-09:00

1 stop32h 45m

€595

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 6/6

10:40-12:02

1 stop30h 22m

San Juan Luis Munoz Marin Intl

Wed 10/6

13:29-08:20

1 stop13h 51m

€595

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 7/4

12:40-22:05

1 stop14h 25m

San Juan Luis Munoz Marin Intl

Mon 20/4

13:25-06:30

1 stop12h 05m

€601

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 9/5

11:40-21:01

1 stop14h 21m

San Juan Luis Munoz Marin Intl

Sat 23/5

10:00-09:00

1 stop18h 00m

€606

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 23/4

10:40-02:39

1 stop20h 59m

San Juan Luis Munoz Marin Intl

Thu 7/5

06:25-09:00

1 stop21h 35m

€610

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 €523, 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 €562.

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 DUBLINMay27% cheaperFlying from Dublin to San Juan costs on average just €523 in May
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM DUBLINDecember27% more expensiveIt costs about €912 for flights to San Juan from Dublin in December
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM DUBLINJuly650% more users visitedMore momondo users searched in flights to San Juan from Dublin in July 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

€337

Best Round-Trip Price

€507

Fastest flight time

38h 15m

Popular in

December
The best one-way flight price to San Juan from Ireland in the last 72 hours is €337 (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
The best round-trip flight price to San Juan from Ireland in the last 72 hours is €507 (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
The fastest flight to San Juan from Ireland takes 38h 15m (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
December has the highest demand for flights to San Juan, with a 9% 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.

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 13h 37m 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 March 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 €590