What airlines fly to Caribbean Islands?

JetBlue, United Airlines and Delta are the top three most popular airlines that fly to Caribbean Islands from Islip, New York according to our data. JetBlue is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 13 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to Caribbean Islands?

JetBlue, Frontier, and Southwest are the most popular carriers operating from Islip Long Island to Caribbean Islands

When did momondo last update prices for flights from Islip Long Island Airport to Caribbean Islands?

Prices for flights from Islip Long Island Airport to Caribbean Islands refresh daily.

How many operators does momondo search for flights from Islip Long Island Airport to Caribbean Islands?

As of July 2026, there are 4 operators available to choose from for flights from Islip Long Island Airport to Caribbean Islands.

How old do you have to be to fly from Islip Long Island Airport to Caribbean Islands?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Caribbean Islands.

What documentation or ID do you need to fly to Caribbean Islands?

The travel and health documents required for your trip to Caribbean Islands 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 license, and a passport valid for six-months after you plan to arrive at Caribbean Islands. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$153 Cheap Flights from Islip, New York to Caribbean Islands in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Islip, New York to Caribbean Islands

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:57 am - 11:06 am

ISP

SJU

24h 09m

1 stop

8:43 pm - 4:58 pm

SJU

ISP

20h 15m

1 stop

$316Frontier

Tue, Sep 1 - Tue, Sep 8

9:55 am - 8:08 pm

ISP

SJU

10h 13m

1 stop

6:09 pm - 9:53 am

SJU

ISP

15h 44m

1 stop

$335Multiple Airlines

Thu, Aug 20 - Tue, Aug 25

10:57 am - 7:38 pm

ISP

SJU

8h 41m

1 stop

8:43 pm - 9:53 am

SJU

ISP

13h 10m

1 stop

$336Frontier

Wed, Sep 2 - Sun, Sep 6

7:09 pm - 2:15 am

ISP

SJU

7h 06m

1 stop

3:10 am - 9:53 am

SJU

ISP

6h 43m

1 stop

$336Frontier

Thu, Aug 20 - Mon, Aug 24

4:48 pm - 2:06 am

ISP

SJU

9h 18m

1 stop

4:29 pm - 11:22 pm

SJU

ISP

6h 53m

1 stop

$353JetBlue

Mon, Aug 31 - Wed, Sep 9

6:00 am - 12:48 pm

ISP

SJU

6h 48m

1 stop

11:00 am - 7:33 pm

SJU

ISP

8h 33m

1 stop

$353JetBlue

Thu, Sep 3 - Tue, Sep 8

12:50 pm - 11:45 pm

ISP

SJU

10h 55m

2 stops

6:05 am - 5:05 pm

SJU

ISP

12h 00m

2 stops

$397Southwest

Wed, Oct 28 - Sun, Nov 1

12:50 pm - 11:45 pm

ISP

SJU

10h 55m

2 stops

6:35 am - 5:05 pm

SJU

ISP

11h 30m

1 stop

$397Southwest

Wed, Oct 28 - Sun, Nov 1

6:00 am - 1:35 pm

ISP

SXM

6h 35m

1 stop

5:45 pm - 9:37 pm

SXM

ISP

28h 52m

2 stops

$619Multiple Airlines

Wed, Nov 11 - Tue, Nov 17

6:00 am - 1:32 pm

ISP

AUA

7h 32m

1 stop

1:50 pm - 10:56 am

AUA

ISP

21h 06m

1 stop

$740Multiple Airlines

Tue, Sep 8 - Mon, Sep 14

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Southwest flights from Islip, New York to Caribbean Islands

Our best Southwest deals on Islip, New York to Caribbean Islands flight tickets

Southwest

Oct 28

ISP12:50 pmIslip Long Island

10h 55m

2 stops

SJU11:45 pmSan Juan Luis Munoz Marin Intl

Nov 1

SJU6:05 amSan Juan Luis Munoz Marin Intl

12h 00m

2 stops

ISP5:05 pmIslip Long Island

$397

Southwest

Aug 21

ISP1:15 pmIslip Long Island

10h 35m

2 stops

SJU11:50 pmSan Juan Luis Munoz Marin Intl

Aug 28

SJU11:35 amSan Juan Luis Munoz Marin Intl

10h 30m

2 stops

ISP10:05 pmIslip Long Island

$442

Southwest

Dec 5

ISP3:30 pmIslip Long Island

6h 25m

1 stop

SJU10:55 pmSan Juan Luis Munoz Marin Intl

Dec 13

SJU5:35 amSan Juan Luis Munoz Marin Intl

8h 05m

1 stop

ISP12:40 pmIslip Long Island

$460

Frontier flights from Islip, New York to Caribbean Islands

Our best Frontier deals on Islip, New York to Caribbean Islands flight tickets

Frontier

Sep 1

ISP10:57 amIslip Long Island

24h 09m

1 stop

SJU11:06 amSan Juan Luis Munoz Marin Intl

Sep 8

SJU8:43 pmSan Juan Luis Munoz Marin Intl

20h 15m

1 stop

ISP4:58 pmIslip Long Island

$316

Frontier

Sep 1

ISP10:57 amIslip Long Island

8h 41m

1 stop

SJU7:38 pmSan Juan Luis Munoz Marin Intl

Sep 5

SJU3:10 amSan Juan Luis Munoz Marin Intl

6h 43m

1 stop

ISP9:53 amIslip Long Island

$336

Frontier

Aug 31

ISP7:09 pmIslip Long Island

7h 06m

1 stop

SJU2:15 amSan Juan Luis Munoz Marin Intl

Sep 1

SJU3:10 amSan Juan Luis Munoz Marin Intl

6h 43m

1 stop

ISP9:53 amIslip Long Island

$346

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Caribbean Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Tue 9/1

10:57 am-11:06 am

1 stop24h 09m

San Juan Luis Munoz Marin Intl

Tue 9/8

8:43 pm-4:58 pm

1 stop20h 15m

$316

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Thu 8/20

9:55 am-8:08 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Tue 8/25

6:09 pm-9:53 am

1 stop15h 44m

$335

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 9/2

10:57 am-7:38 pm

1 stop8h 41m

San Juan Luis Munoz Marin Intl

Sun 9/6

8:43 pm-9:53 am

1 stop13h 10m

$336

Quickest round-trip

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Thu 8/20

7:09 pm-2:15 am

1 stop7h 06m

San Juan Luis Munoz Marin Intl

Mon 8/24

3:10 am-9:53 am

1 stop6h 43m

$336

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Mon 8/31

4:48 pm-2:06 am

1 stop9h 18m

San Juan Luis Munoz Marin Intl

Wed 9/9

4:29 pm-11:22 pm

1 stop6h 53m

$353

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Thu 9/3

6:00 am-12:48 pm

1 stop6h 48m

San Juan Luis Munoz Marin Intl

Tue 9/8

11:00 am-7:33 pm

1 stop8h 33m

$353

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 10/28

12:50 pm-11:45 pm

2 stops10h 55m

San Juan Luis Munoz Marin Intl

Sun 11/1

6:05 am-5:05 pm

2 stops12h 00m

$397

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 10/28

12:50 pm-11:45 pm

2 stops10h 55m

San Juan Luis Munoz Marin Intl

Sun 11/1

6:35 am-5:05 pm

1 stop11h 30m

$397

IslipSimpson Bay

ISP - SXM

ISPSXM

Islip Long Island

Wed 11/11

6:00 am-1:35 pm

1 stop6h 35m

Simpson Bay Princess Juliana

Tue 11/17

5:45 pm-9:37 pm

2 stops28h 52m

$619

IslipOranjestad

ISP - AUA

ISPAUA

Islip Long Island

Tue 9/8

6:00 am-1:32 pm

1 stop7h 32m

Oranjestad Reina Beatrix

Mon 9/14

1:50 pm-10:56 am

1 stop21h 06m

$740

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to Caribbean Islands

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Islip, New York to Caribbean Islands flights?

No. A direct flight is the cheapest option for a flight between Islip, New York to Caribbean Islands.

Cheap Islip, New York to Caribbean Islands flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Caribbean Islands

Fastest flight time	5h 25m
Direct flights	None

The fastest flight from Islip, New York to Caribbean Islands takes 5h 25m

There are no direct flights from Islip, New York to Caribbean Islands. There are no popular flight routes from Islip, New York to Caribbean Islands.

Search flight deals

Frequently asked questions about flying from Islip, New York to Caribbean Islands

When did momondo last update prices for flights from Islip Long Island Airport to Caribbean Islands?
Prices for flights from Islip Long Island Airport to Caribbean Islands refresh daily.
How many operators does momondo search for flights from Islip Long Island Airport to Caribbean Islands?
As of July 2026, there are 4 operators available to choose from for flights from Islip Long Island Airport to Caribbean Islands.
How old do you have to be to fly from Islip Long Island Airport to Caribbean Islands?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Caribbean Islands.
What documentation or ID do you need to fly to Caribbean Islands?
The travel and health documents required for your trip to Caribbean Islands 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 license, and a passport valid for six-months after you plan to arrive at Caribbean Islands. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Islip, New York to Caribbean Islands?
momondo data reveals that the most frequently booked plane model on the route from Islip, New York to Caribbean Islands is Airbus A320-100/200, representing 25.74% of all bookings. The subsequent popular models are Airbus A220-300 at 14.05%, Airbus A321neo at 10.98%, and Boeing 737 MAX 8 at 10.03%.

Best airlines flying from Islip, New York to Caribbean Islands

Compare and see reviews for airlines that fly from Islip, New York to Caribbean Islands with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $106	Free Cancellation	Rating 5.6 2,749 reviews	Search Frontier flights
JetBlue	PriceFrom $301	Free Cancellation	Rating 7.1 3,024 reviews	Search JetBlue flights
Southwest	PriceFrom $367	Free Cancellation	Rating 8.0 4,227 reviews	Search Southwest flights
Delta	PriceFrom $402	Free Cancellation	Rating 7.8 8,486 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Caribbean Islands?

It is quick and easy to find Islip to Caribbean Islands flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Caribbean Islands that suits you.

Can I find flights from Islip to Caribbean Islands with flexible booking policies on momondo?

momondo does allow users to show only those flights to Caribbean Islands from Islip which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Islip to Caribbean Islands?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Islip to Caribbean Islands.

I’m not ready to book a flight from Islip to Caribbean Islands right now. Can momondo alert me if prices change?

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