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Flights to San Juan

€261 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 19/5. 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
11:30 - 10:24
DUB
-
SJU
27h 54m
1 stop
JetBlue Logo
05:01 - 08:20
SJU
-
DUB
22h 19m
1 stop
€547JetBlue
Sat, 16 May - Mon, 1 Jun
JetBlue Logo
11:30 - 19:32
DUB
-
SJU
13h 02m
1 stop
JetBlue Logo
10:30 - 09:00
SJU
-
DUB
17h 30m
1 stop
€561JetBlue
Mon, 5 Oct - Sat, 17 Oct
JetBlue Logo
11:30 - 13:39
DUB
-
SJU
31h 09m
1 stop
JetBlue Logo
05:01 - 08:20
SJU
-
DUB
22h 19m
1 stop
€566JetBlue
Mon, 18 May - Mon, 1 Jun
Multiple Airlines Logo
19:05 - 22:42
DUB
-
SJU
32h 37m
2 stops
Multiple Airlines Logo
02:59 - 19:05
SJU
-
DUB
35h 06m
3 stops
€602Multiple Airlines
Sun, 3 May - Wed, 6 May
JetBlue Logo
11:30 - 21:00
DUB
-
SJU
14h 30m
1 stop
JetBlue Logo
12:00 - 09:00
SJU
-
DUB
16h 00m
1 stop
€660JetBlue
Fri, 1 May - Fri, 15 May
JetBlue Logo
11:30 - 22:53
DUB
-
SJU
16h 23m
1 stop
JetBlue Logo
06:30 - 09:00
SJU
-
DUB
21h 30m
1 stop
€674JetBlue
Sat, 30 May - Tue, 9 Jun
Multiple Airlines Logo
18:20 - 00:19
DUB
-
SJU
34h 59m
3 stops
Multiple Airlines Logo
02:59 - 19:15
SJU
-
DUB
35h 16m
3 stops
€675Multiple Airlines
Thu, 14 May - Thu, 28 May
Multiple Airlines Logo
18:20 - 22:42
DUB
-
SJU
33h 22m
2 stops
Multiple Airlines Logo
02:59 - 19:15
SJU
-
DUB
35h 16m
3 stops
€679Multiple Airlines
Thu, 14 May - Thu, 28 May
JetBlue Logo
11:30 - 21:00
DUB
-
SJU
14h 30m
1 stop
JetBlue Logo
12:00 - 09:00
SJU
-
DUB
16h 00m
1 stop
€689JetBlue
Sun, 3 May - Thu, 7 May
JetBlue Logo
11:30 - 01:11
DUB
-
SJU
18h 41m
1 stop
JetBlue Logo
19:39 - 08:20
SJU
-
DUB
31h 41m
1 stop
€691JetBlue
Sun, 17 May - Sun, 24 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 21 April 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

Sat 16/5

11:30-10:24

1 stop27h 54m

San Juan Luis Munoz Marin Intl

Mon 1/6

05:01-08:20

1 stop22h 19m

€547

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 5/10

11:30-19:32

1 stop13h 02m

San Juan Luis Munoz Marin Intl

Sat 17/10

10:30-09:00

1 stop17h 30m

€561

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 18/5

11:30-13:39

1 stop31h 09m

San Juan Luis Munoz Marin Intl

Mon 1/6

05:01-08:20

1 stop22h 19m

€566

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 3/5

19:05-22:42

2 stops32h 37m

San Juan Luis Munoz Marin Intl

Wed 6/5

02:59-19:05

3 stops35h 06m

€602
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 1/5

11:30-21:00

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Fri 15/5

12:00-09:00

1 stop16h 00m

€660

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 30/5

11:30-22:53

1 stop16h 23m

San Juan Luis Munoz Marin Intl

Tue 9/6

06:30-09:00

1 stop21h 30m

€674

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 14/5

18:20-00:19

3 stops34h 59m

San Juan Luis Munoz Marin Intl

Thu 28/5

02:59-19:15

3 stops35h 16m

€675

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Thu 14/5

18:20-22:42

2 stops33h 22m

San Juan Luis Munoz Marin Intl

Thu 28/5

02:59-19:15

3 stops35h 16m

€679

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 3/5

11:30-21:00

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Thu 7/5

12:00-09:00

1 stop16h 00m

€689

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 17/5

11:30-01:11

1 stop18h 41m

San Juan Luis Munoz Marin Intl

Sun 24/5

19:39-08:20

1 stop31h 41m

€691

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 €525, 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 €585.

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 DUBLINMay23% cheaperFlying from Dublin to San Juan costs on average just €525 in May
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM DUBLINJuly22% more expensiveIt costs about €833 for flights to San Juan from Dublin in July
MOST POPULAR MONTH TO FLY TO SAN JUAN FROM DUBLINApril766% 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

€261

Best Round-Trip Price

€547

Fastest flight time

13h 30m

Popular in

July
The best one-way flight price to San Juan from Ireland in the last 72 hours is €261 (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 €547 (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
The fastest flight to San Juan from Ireland takes 13h 30m (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.

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 02m 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 April 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 €660