Find cheap flights from Islip to San Juan

ISP - SJU

Find cheap flights from Islip to San Juan

Search hundreds of travel sites at once for deals on flights to San Juan

Round-trip
Economy
Islip (ISP)
San Juan Luis Munoz Marin Intl
Mon 8/2
Mon 8/9
Any month
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Good to know

Low season

MayBest time to beat the crowds with an average 77% drop in price.

High season

NovemberMost popular time to fly with an average 56% increase in price.

Average price round-trip

$436(avg. price over the last 2 weeks)

Good deal round-trip

$354or less

Good deal one-way

$175or less

When to book flights from Islip to San Juan

Estimated round-trip price
Average price per month

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $175 or less one-way and $354 or less round-trip.
  • High season is considered to be October, November and December. The cheapest month to fly is May.
  • Morning departure is around 9% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Islip to San Juan flights

Can I fly to San Juan? Are there any travel restrictions when entering San Juan?

Can I fly to San Juan without having to quarantine on arrival?

Do I need to take a coronavirus (Covid-19) test before flying to San Juan?

Can vaccinated people travel to San Juan?

What documents do I need to fly to San Juan?

What other coronavirus (Covid-19) restrictions are there in San Juan?

How long does a flight from Islip to San Juan take?

Which airlines provide the cheapest flights from Islip to San Juan?

Do I need a passport to fly between Islip and San Juan?

What’s the cheapest day of the week to fly Islip to San Juan?

How does KAYAK find such low prices on flights from Islip to San Juan?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to San Juan?

What is the Hacker Fare option on flights from Islip to San Juan?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to San Juan?

Top airlines flying Islip Long Island to San Juan Luis Munoz Marin Intl

Scores according to KAYAK customer reviews

7.2
American Airlines
Overall score based on 45,971 reviews
7.5
Boarding
7.1
Comfort
7.8
Crew
6.8
Entertainment
6.7
Food
Airline reviews

Pros: "The price."
Cons: "Flight was delayed for 2 hours in Airbus 777 full of passengers. The reason was to fix some light and administrative error on a log book. This could have been prevented if they had done all of the checks beforehand. All of those passengers stuck in a plane during a pandemic. Not very smart !!!!"

Pros: "On time take off and the fact that we arrived alive."
Cons: "Hot meals and inflight entertainment. No even drinks were served."

Pros: "Great service and comfortable; well sanitized."
Cons: "TV screens for movies and shows."

Cons: "Some of the crew had an attitude and the purchased WiFi did not work"

Pros: "Crew was snappy in getting people in plane and checking in carry ons since occupancy had been reached."
Cons: "Lack of adjustable headrest on seat."

Cons: "Feeling of being cramped"

Pros: "Crew was great!"

Pros: "Checking in with my Mum who needs assistance was excellent."
Cons: "Lack of Entertainment."

Pros: "Time of flight"
Cons: "Aircraft had no screen, old, uncomfortable"

Cons: "Crampt space, cold cabin"

Pros: "None"
Cons: "Long delay"

Pros: "Movie options were good."
Cons: "The a/c was not working well and t"

Pros: "The service was excellent and the flight on time. Love American."
Cons: "The seats have been refurbished and if you are a plus size the seats are uncomfortable."

Cons: "Flight cancelled and had to travel 60 miles at my expense to a different airport to get another flight same day"

Pros: "Service"
Cons: "Seats and space"

Cons: "Entertainment via internet could NEVER be really be done complitly. And the flight attendants did not know how to help costumers"

Cons: "Poor service"

Pros: "I loved everything. No complaints. American airlines is one of the best airlines I have flown with."

Pros: "I liked that we got to San Juan safely. The crew on board was very accommodating."
Cons: "Due to the delays, we missed our jumper flight and American refused to compensate. Also, only had two cookies all day from 8:05am until 3:45 pm! No sandwiches as promised. We were delayed approximately 4 hours total. Had to take a taxi ($85) to Fajardo to HOPEFULLY catch last ferry to Culebra. Guess AmericansAirlines doesn’t care if you have to sleep at the dock!"

Cons: "Dallas to San Juan San Juan Dallas American Airlines has the worst seat of any airline flown by us fare almost 2000 dollars for round trip and the seat is small hard uncomfortable even for a short flight this is no business class!!"

Pros: "On time"
Cons: "Cold cabin"

Cons: "The seats are very tight."

Cons: "Last minute cancellation and reschedule if original flight with 20 people hounding the gate for standby status. Craziness. These last minute revisions mist stop"

Pros: "USB Outlets are nice to have"
Cons: "Nothing was bad on this flight"

Pros: "Boarding process"
Cons: "Delay, no food,"

Pros: "Schedule was punctual. The entertainment was superb. Good crew. The overhead bins were, for some reason, larger which aided the boarding process."
Cons: "I guess the lack of snack options but that is just the way it is nowadays."

Pros: "Can't think of anything good"
Cons: "SEE: Customer Relations request #1-249830721"

Pros: "Nice crew clean airplane"
Cons: "Initial flight was cancelled after 2 hours delay. My next flight was scheduled the earliest possible by AA which was 24 hours later. No transportation,hotel or miles compensation for this. I had work and responsabilities the next day. TThe scheduled trip was supposed to take off at 7:45. Boarding started late and was very slow. My bag fit the meassurements and still was forced to check it (which I did not want to do as I did not want to be waiting an hour for my bag at my arrival as I had work early the next day. In addition there was airplaine traffic as it was "rush hour" instead of flying at 7:45 we departed almost at 9pm!!!! Have to pay for food Quality of tv monitors very poor And in an uncomfortable position No movie options No wifi although stated the aircraft has Non functioning electrical plug"

Pros: "Nothing"
Cons: "Never made it to San Juan to catch my cruise. To top things off I was a ship for two days without my luggage and underwears. Never again!!! Thank you JetBlue!!!"

Pros: "On time smooth"

Pros: "The pilot was a riot, the flight was on time. Again, nothing wrong, nothing special. As it should be (if only we had more leg and seat room, and I am pretty streamline)."

Pros: "Friendly staff. Landed early. Offered a free bag."
Cons: "They moved the flight earlier, which was not fun. And, there were no entertainment centers."

Pros: "Nothing"
Cons: "Super old planes, no had a tv."

Pros: "Puntuality"

Pros: "Crew was good."
Cons: "The television was in the aisle and couldn't be properly seen. Also there was no outlet charger. During boarding, even thou they called by group number, the crew allowed a queue in the front, making it confusing who was in line and who wasn't. Better wait till the end to board that get in that mess"

Cons: "There seets are two small. And they dont sell alcohol. That sucks."

Cons: "The airline had trouble with the plane. After we waited 3 hrs in the plane they cancel the flight. They offer a hotel but it was very dirty"

Pros: "Friendly polite staff. Plane left and arrived on time."

Cons: "No have owned screen TV"

Pros: "Even when the plane was full they managed to help passengers to get seated."
Cons: "If you still flying economy class, why would you have to pay extra for exit row where the seats are the same. Only received pretzel and a cup of drink on a 3 hour flight once."

Pros: "Everything"
Cons: "Nothing"

Pros: "Comfortable seat"
Cons: "Lack of entertainment"

Cons: "One hour delay sitting inside the plane with no pilot!! And to top it off, the air conditioner was off!! Will never fly American ever again."

Pros: "Overall good flight"
Cons: "I did not like the time needed for boarding/ settling in. But that is a factor of people not following instructions. Not the crew."

Cons: "Terrible airport assistance, many unnecessary customs checks, uncomfortable seats, on flight bad service and late flight times."

Pros: "I was going home"
Cons: "Late flight no pilots andt broke my luggage."

Cons: "I didn't like the American airline people who checked my bag. She threw it because I told her nothing was breakable in it."

Cons: "Gg"

Pros: "Everything was on time, no delays."

Cons: "Everything"

Pros: "Check in was"

Pros: "Nothing"
Cons: "Smoother ride to location"

Cons: "Nothing because everything is good."

Pros: "En realidad nada porque desde los empleados hasta las azafatas del avión brindan muy pésimo servicio"
Cons: "Todo Check in Empleados Meriendas Entretenimiento"

Cons: "Frontier is usually good, not this flight. Dirty and packed full, not clean at all."

Cons: "Covid prevention methods need to be fixed ASAP, I don't trust Frontier with my health safety. Everyone was cramped in the plane and there was not any space betweem seats like other airlines. The app did not work to pay for carryon and I had to pay $60 in the front desk."

Pros: "That was fun"
Cons: "The food in the airplane"

Pros: "The crew of the flight was good but the seat are no comfortable."
Cons: "Comfortable seats."

Pros: "Once again everyone was so wonderful and helpful"
Cons: "Lower luggage cost. I spent $110 additional on this trip since since I wasn't well informed (my fault)"

Cons: "Clean, comfortable plane. Smooth ride. Departed on time, arrived ahead of time:)"

Pros: "Nothing"
Cons: "Everything"

Pros: "Nothing"
Cons: "Staff crabage"

Cons: "The fees for the baggage are ridiculous"

Pros: "The crew was great, the chairs are uncomfortable."
Cons: "For the price it’s great."

Pros: "I was in row 2 and it had reclining seats."
Cons: "They did not have enough people to push wheelchairs at Mac Arthur airport. My husband had to push me & since we don’t know the airport we had to ask every step we went, they had no signs leading the way."

Cons: "Never happened, the flight was cancelled and never rebooked."

Cons: "The flight was delayed, it was a mess."

Pros: "We finally made it to the destination"
Cons: "the flight was delayed more than once. and it seems to be common on this route"

Cons: "Boarding"

Pros: "Great flught for the price."
Cons: "Can’t complain."

Cons: "Good"

Pros: "The anouncements in Islip explaining the boarding process and warning people about bringing carry ons that they did not pay for were clear, loud and understandable. Crew was great."
Cons: "the seats hurt my butt, not sure if I could do a longer flight on this plane"

Pros: "Crew was very nice. Boarding was efficient."
Cons: "Snack selections are very limited. If we are paying for it anyway the choices should be a little more varied."

Pros: "On time, new comfortable plane."
Cons: "Entertainment?"

Cons: "3 hours delayed. I was late for a important interview. I lost money because of it"

Pros: "No issues"

Pros: "Nothing"
Cons: "Everything. Really bad seats, no room for you. Carry on - charge $50. No free beverages ."

Cons: "Frontier services is the worst."

Pros: "SEAT was comfortable"
Cons: "Service"

Pros: "Estaba todo bien."
Cons: "Pero no me gusto q havia mucha turbulencia. Y mis photos queria esplotar."

Cons: "The crew were not welcoming or friendly. One of them (blond, curly hair) was mean and disrespectful to everyone. She had an attitude all the time. Just the opposite of my flight from SJU to ATL. Other than that, the flight was on time, etc."

Pros: "Good"

Pros: "I liked that the gave us food vouchers for our wait"
Cons: "That I really wanted to get home. One person missed is brother’s funeral, another person missed their connecting flight. I thought it was poor planning on frontiers part. Many people were getting very upset with the crew and calling customer service. I felt very bad feeling f the crew and many people who needed to be in Chicago when they promised for us to get there. It was upsetting, just tried to make lemonade out of lemons."

Pros: "We had an uneventful flight"
Cons: "Didn’t depart until 1055 pm. One hour later than scheduled"

Cons: "Las 2 horas de retraso del vuelo."

Cons: "The seats are very uncomfortable"

Pros: "Everything went well. No issues at all."
Cons: "Deplaning is slow. Should consider a rear deplaning procedure from back doors into tarmac and into terminal."

Pros: "Nice service. Exceptionally new plane about a year old to the month."
Cons: "Need to ask people to prepare to deplane. Perhaps use rear door to expedite process"

Pros: "Great service."
Cons: "Limited food"

Pros: "The flight was Very puntual, clean and nice personal in the round trip. I will recomend to my friends and I will flight again soon."
Cons: "Nothing"

Pros: "El personal muy atento"
Cons: "Asientos un poco incómodos, no hay entretenimiento"

Pros: "On time, attentive service"
Cons: "Food selection limited"

Pros: "No setbacks. On time departures. Arrival ahead of time."
Cons: "Food is quite limited."

Pros: "boarding and treatment by staff wad excellent"
Cons: "$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc)."

Pros: "Great flight from Islip to MIA. Looked at another review about water on flights and I was told by the crew that water is FREE!"
Cons: "Seats are small but newly redesigned."

Pros: "Noting"

Pros: "No cancellation. No delays. No problems with carry on placement on the aircraft. Good service from the flight attendant."
Cons: "No entertainment. Smaller room space."

Cons: "Poor customer service at service desk"

Pros: "Once in air it was uneventful"

Read more about American Airlines
COVID-19 information

Safety measures for airlines flying from Islip to San Juan

Airlines flying from Islip to San Juan have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Islip to San Juan

Mandatory masks

Masks required on board, masks provided on flights from Islip to San Juan

Social distancing seating

Middle seats unavailable to book on flights from Islip to San Juan

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Islip to San Juan

Book cheap flights from Islip to San Juan

Recent round-trip flight deals

9/3
Fri
2 stops
Multiple Airlines
18h 22m
ISP - SJU
9/5
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14h 50m
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18h 22m
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13h 44m
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Multiple Airlines
24h 57m
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Frontier
9h 04m
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Frontier
14h 50m
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9/3
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9h 04m
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9/6
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13h 44m
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8/19
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27h 43m
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Frontier
9h 04m
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24h 23m
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27h 43m
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12h 40m
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American Airlines
13h 29m
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28h 49m
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Recent one-way flight deals

11/10
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1 stop
American Airlines
11h 16m
ISP - SJU
9/1
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Frontier
12h 40m
ISP - SJU
8/12
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American Airlines
8h 17m
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17h 27m
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15h 02m
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17h 37m
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15h 02m
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6h 25m
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17h 37m
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27h 49m
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