What airlines fly to Caribbean?

JetBlue, United Airlines and Delta are the top three most popular airlines that fly to Caribbean from Islip, New York according to our data. JetBlue is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Caribbean. Keep in mind that there are 14 different airlines that fly to Caribbean 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?

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

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

Prices for flights from Islip Long Island Airport to Caribbean were last updated today.

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

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

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

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.

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

The required travel and health documents for your Caribbean trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Caribbean. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$87 Cheap Flights from Islip to Caribbean in 2026

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Find the cheapest flights from Islip, New York to Caribbean

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:23 pm - 2:53 am

ISP

SJU

29h 30m

1 stop

7:09 pm - 4:12 pm

SJU

ISP

22h 03m

1 stop

$183Frontier

Sat, Feb 21 - Thu, Feb 26

8:23 pm - 2:53 am

ISP

SJU

29h 30m

1 stop

5:25 pm - 2:39 pm

SJU

ISP

22h 14m

1 stop

$192Frontier

Sat, Feb 21 - Wed, Feb 25

3:34 pm - 12:43 am

ISP

SJU

8h 09m

1 stop

3:53 am - 2:39 pm

SJU

ISP

11h 46m

1 stop

$206Frontier

Thu, Feb 26 - Wed, Mar 4

3:59 pm - 2:53 am

ISP

SJU

9h 54m

1 stop

3:53 am - 2:39 pm

SJU

ISP

11h 46m

1 stop

$213Frontier

Mon, Feb 23 - Wed, Feb 25

3:34 pm - 2:53 am

ISP

SJU

10h 19m

1 stop

7:00 am - 4:12 pm

SJU

ISP

10h 12m

1 stop

$238Multiple Airlines

Fri, Feb 20 - Sat, Feb 28

8:23 pm - 6:50 pm

ISP

PUJ

21h 27m

1 stop

2:16 pm - 5:46 pm

PUJ

ISP

28h 30m

2 stops

$423Multiple Airlines

Sat, Feb 28 - Sat, Mar 7

8:25 am - 4:00 pm

ISP

NAS

7h 35m

1 stop

3:03 pm - 8:55 am

NAS

ISP

17h 52m

1 stop

$425JetBlue

Tue, Mar 17 - Tue, Mar 24

8:25 am - 4:00 pm

ISP

NAS

7h 35m

1 stop

8:27 am - 8:55 am

NAS

ISP

24h 28m

1 stop

$450JetBlue

Tue, Mar 24 - Sun, Mar 29

5:20 am - 2:00 pm

ISP

SXM

8h 40m

1 stop

3:00 pm - 11:40 pm

SXM

ISP

8h 40m

1 stop

$625Southwest

Thu, Jun 18 - Thu, Jun 25

6:00 am - 6:30 pm

ISP

NAS

12h 30m

2 stops

2:10 pm - 11:40 pm

NAS

ISP

9h 30m

1 stop

$626Southwest

Mon, Jun 1 - Thu, Jun 4

Frontier flights from Islip, New York to Caribbean

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

Frontier

Feb 21

ISP8:23 pmIslip Long Island

29h 30m

1 stop

SJU2:53 amSan Juan Luis Munoz Marin Intl

Feb 26

SJU7:09 pmSan Juan Luis Munoz Marin Intl

22h 03m

1 stop

ISP4:12 pmIslip Long Island

$183

Frontier

Feb 21

ISP8:23 pmIslip Long Island

29h 30m

1 stop

SJU2:53 amSan Juan Luis Munoz Marin Intl

Feb 25

SJU5:25 pmSan Juan Luis Munoz Marin Intl

22h 14m

1 stop

ISP2:39 pmIslip Long Island

$192

Frontier

Feb 26

ISP3:34 pmIslip Long Island

8h 09m

1 stop

SJU12:43 amSan Juan Luis Munoz Marin Intl

Mar 4

SJU3:53 amSan Juan Luis Munoz Marin Intl

11h 46m

1 stop

ISP2:39 pmIslip Long Island

$206

Southwest flights from Islip, New York to Caribbean

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

Southwest

Feb 23

ISP11:50 amIslip Long Island

11h 50m

2 stops

SJU12:40 amSan Juan Luis Munoz Marin Intl

Feb 25

SJU5:40 amSan Juan Luis Munoz Marin Intl

11h 35m

2 stops

ISP4:15 pmIslip Long Island

$352

Southwest

Jun 18

ISP5:20 amIslip Long Island

8h 40m

1 stop

SXM2:00 pmSimpson Bay Princess Juliana

Jun 25

SXM3:00 pmSimpson Bay Princess Juliana

8h 40m

1 stop

ISP11:40 pmIslip Long Island

$625

Southwest

Jun 1

ISP6:00 amIslip Long Island

12h 30m

2 stops

NAS6:30 pmNassau Intl

Jun 4

NAS2:10 pmNassau Intl

9h 30m

1 stop

ISP11:40 pmIslip Long Island

$626

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sat 2/21

8:23 pm-2:53 am

1 stop29h 30m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:09 pm-4:12 pm

1 stop22h 03m

$183

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sat 2/21

8:23 pm-2:53 am

1 stop29h 30m

San Juan Luis Munoz Marin Intl

Wed 2/25

5:25 pm-2:39 pm

1 stop22h 14m

$192

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Thu 2/26

3:34 pm-12:43 am

1 stop8h 09m

San Juan Luis Munoz Marin Intl

Wed 3/4

3:53 am-2:39 pm

1 stop11h 46m

$206

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Mon 2/23

3:59 pm-2:53 am

1 stop9h 54m

San Juan Luis Munoz Marin Intl

Wed 2/25

3:53 am-2:39 pm

1 stop11h 46m

$213

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Fri 2/20

3:34 pm-2:53 am

1 stop10h 19m

San Juan Luis Munoz Marin Intl

Sat 2/28

7:00 am-4:12 pm

1 stop10h 12m

$238

IslipPunta Cana

ISP - PUJ

ISPPUJ

Islip Long Island

Sat 2/28

8:23 pm-6:50 pm

1 stop21h 27m

Punta Cana

Sat 3/7

2:16 pm-5:46 pm

2 stops28h 30m

$423

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Tue 3/17

8:25 am-4:00 pm

1 stop7h 35m

Nassau Intl

Tue 3/24

3:03 pm-8:55 am

1 stop17h 52m

$425

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Tue 3/24

8:25 am-4:00 pm

1 stop7h 35m

Nassau Intl

Sun 3/29

8:27 am-8:55 am

1 stop24h 28m

$450

IslipSimpson Bay

ISP - SXM

ISPSXM

Islip Long Island

Thu 6/18

5:20 am-2:00 pm

1 stop8h 40m

Simpson Bay Princess Juliana

Thu 6/25

3:00 pm-11:40 pm

1 stop8h 40m

$625

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Mon 6/1

6:00 am-6:30 pm

2 stops12h 30m

Nassau Intl

Thu 6/4

2:10 pm-11:40 pm

1 stop9h 30m

$626

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

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

What is the cheapest month to fly to Caribbean?

In general, February is the cheapest month to fly from Islip, New York to Caribbean. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $182. If you don’t want to visit Caribbean in February, then you should wait until April to fly from Islip, New York, when ticket prices are also cheap, with an average price of $299.

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

You could potentially save up to 66% on your flight if you consider stops on a Islip, New York to Caribbean flight.

Cheap Islip, New York to Caribbean flight deals and tips

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

Fastest flight time	5h 03m
Direct flights	None

The fastest flight from Islip, New York to Caribbean takes 5h 03m

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

Search flight deals

When did momondo last update prices for flights from Islip Long Island Airport to Caribbean?
Prices for flights from Islip Long Island Airport to Caribbean were last updated today.
How many operators does momondo search for flights from Islip Long Island Airport to Caribbean?
As of February 2026, there are 4 operators available to choose from for flights from Islip Long Island Airport to Caribbean.
How old do you have to be to fly from Islip Long Island Airport to Caribbean?
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.
What documentation or ID do you need to fly to Caribbean?
The required travel and health documents for your Caribbean trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Caribbean. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Islip, New York to Caribbean

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $59	Free Cancellation	Rating 5.7 3,050 reviews	Search Frontier flights
JetBlue	PriceFrom $216	Free Cancellation	Rating 7.2 2,892 reviews	Search JetBlue flights
Delta	PriceFrom $350	Free Cancellation	Rating 7.9 8,131 reviews	Search Delta flights
Southwest	PriceFrom $367	Free Cancellation	Rating 8.0 4,271 reviews	Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Islip to Caribbean. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Caribbean from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Caribbean from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Islip to Caribbean flights. All you need is a valid email address and we will do the rest; it is that quick and easy.