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Flights to San Juan

€427 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 12/10. 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
11:30 - 15:59
DUB
-
SJU
33h 29m
1 stop
JetBlue Logo
13:50 - 08:20
SJU
-
DUB
13h 30m
1 stop
€535JetBlue
Tue, 25 Aug - Tue, 1 Sep
JetBlue Logo
11:30 - 23:32
DUB
-
SJU
17h 02m
1 stop
JetBlue Logo
15:24 - 09:00
SJU
-
DUB
12h 36m
1 stop
€537JetBlue
Sat, 22 Aug - Sat, 5 Sep
JetBlue Logo
11:30 - 20:48
DUB
-
SJU
14h 18m
1 stop
JetBlue Logo
13:50 - 08:20
SJU
-
DUB
13h 30m
1 stop
€539JetBlue
Sat, 22 Aug - Sun, 6 Sep
JetBlue Logo
11:30 - 00:13
DUB
-
SJU
17h 43m
1 stop
JetBlue Logo
20:35 - 08:20
SJU
-
DUB
30h 45m
1 stop
€545JetBlue
Fri, 21 Aug - Fri, 28 Aug
JetBlue Logo
11:30 - 21:40
DUB
-
SJU
15h 10m
1 stop
JetBlue Logo
13:00 - 09:00
SJU
-
DUB
15h 00m
1 stop
€553JetBlue
Wed, 2 Sep - Thu, 10 Sep
JetBlue Logo
10:40 - 23:54
DUB
-
SJU
18h 14m
1 stop
JetBlue Logo
13:50 - 08:20
SJU
-
DUB
13h 30m
1 stop
€555JetBlue
Sun, 16 Aug - Tue, 1 Sep
JetBlue Logo
10:40 - 23:54
DUB
-
SJU
18h 14m
1 stop
JetBlue Logo
08:03 - 09:00
SJU
-
DUB
19h 57m
1 stop
€556JetBlue
Sun, 16 Aug - Sun, 30 Aug
JetBlue Logo
11:30 - 00:13
DUB
-
SJU
17h 43m
1 stop
JetBlue Logo
11:50 - 09:00
SJU
-
DUB
16h 10m
1 stop
€567JetBlue
Tue, 1 Sep - Mon, 7 Sep
JetBlue Logo
10:40 - 23:54
DUB
-
SJU
18h 14m
1 stop
JetBlue Logo
14:30 - 08:20
SJU
-
DUB
12h 50m
1 stop
€568JetBlue
Mon, 24 Aug - Mon, 31 Aug
JetBlue Logo
11:30 - 19:32
DUB
-
SJU
13h 02m
1 stop
JetBlue Logo
13:00 - 09:00
SJU
-
DUB
15h 00m
1 stop
€574JetBlue
Wed, 16 Sep - Wed, 23 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 12 July 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

Tue 25/8

11:30-15:59

1 stop33h 29m

San Juan Luis Munoz Marin Intl

Tue 1/9

13:50-08:20

1 stop13h 30m

€535

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 22/8

11:30-23:32

1 stop17h 02m

San Juan Luis Munoz Marin Intl

Sat 5/9

15:24-09:00

1 stop12h 36m

€537
Fastest return journey

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sat 22/8

11:30-20:48

1 stop14h 18m

San Juan Luis Munoz Marin Intl

Sun 6/9

13:50-08:20

1 stop13h 30m

€539

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Fri 21/8

11:30-00:13

1 stop17h 43m

San Juan Luis Munoz Marin Intl

Fri 28/8

20:35-08:20

1 stop30h 45m

€545

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 2/9

11:30-21:40

1 stop15h 10m

San Juan Luis Munoz Marin Intl

Thu 10/9

13:00-09:00

1 stop15h 00m

€553

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 16/8

10:40-23:54

1 stop18h 14m

San Juan Luis Munoz Marin Intl

Tue 1/9

13:50-08:20

1 stop13h 30m

€555

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Sun 16/8

10:40-23:54

1 stop18h 14m

San Juan Luis Munoz Marin Intl

Sun 30/8

08:03-09:00

1 stop19h 57m

€556

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Tue 1/9

11:30-00:13

1 stop17h 43m

San Juan Luis Munoz Marin Intl

Mon 7/9

11:50-09:00

1 stop16h 10m

€567

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Mon 24/8

10:40-23:54

1 stop18h 14m

San Juan Luis Munoz Marin Intl

Mon 31/8

14:30-08:20

1 stop12h 50m

€568

DublinSan Juan

DUB - SJU

DUBSJU

Dublin

Wed 16/9

11:30-19:32

1 stop13h 02m

San Juan Luis Munoz Marin Intl

Wed 23/9

13:00-09:00

1 stop15h 00m

€574

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 €558, 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 €640.

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 €558 in May
MOST EXPENSIVE MONTH TO FLY TO SAN JUAN FROM DUBLINJuly20% more expensiveIt costs about €862 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

€427

Best Round-Trip Price

€535

Fastest flight time

47h 09m

Popular in

July
The best one-way flight price to San Juan from Ireland in the last 5 days is €427 (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 €535 (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
The fastest flight to San Juan from Ireland takes 47h 09m (Dublin to San Juan Luis Munoz Marin Intl).
Search Deals
July has the highest demand for flights to San Juan, with a 3% 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 Santurce?

Yes, you can get a flight ticket to San Juan Luis Munoz Marin Intl if you want to reach Santurce. It is the nearest San Juan airport (5.2 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 17h 43m 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 July 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 €611