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 50% 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 Southwest 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 March 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.

$88 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.

4:07 pm - 2:01 am

ISP

SJU

9h 54m

1 stop

3:03 am - 10:05 am

SJU

ISP

7h 02m

1 stop

$176Frontier

lun., abr. 27 - mar., may. 5

11:15 am - 2:01 am

ISP

SJU

14h 46m

1 stop

8:00 am - 9:13 am

SJU

ISP

25h 13m

1 stop

$186Frontier

sáb., abr. 11 - sáb., abr. 18

8:31 pm - 11:29 pm

ISP

SJU

26h 58m

1 stop

6:30 am - 9:28 am

SJU

ISP

26h 58m

1 stop

$194Frontier

jue., abr. 23 - dom., abr. 26

11:00 am - 10:43 pm

ISP

SJU

11h 43m

1 stop

3:03 am - 10:05 am

SJU

ISP

7h 02m

1 stop

$196Frontier

mié., may. 6 - vie., may. 8

8:59 pm - 8:51 am

ISP

STI

11h 52m

1 stop

8:57 am - 8:04 pm

STI

ISP

11h 07m

1 stop

$361JetBlue

jue., may. 7 - mié., may. 13

8:59 pm - 8:51 am

ISP

STI

11h 52m

1 stop

7:31 am - 5:44 pm

STI

ISP

10h 13m

1 stop

$365JetBlue

mié., may. 6 - mié., may. 13

6:00 am - 6:30 pm

ISP

NAS

12h 30m

2 stops

8:45 am - 4:35 pm

NAS

ISP

7h 50m

1 stop

$525Southwest

vie., may. 29 - mié., jun. 3

8:35 am - 6:30 pm

ISP

NAS

9h 55m

2 stops

2:10 pm - 10:10 pm

NAS

ISP

8h 00m

2 stops

$535Southwest

vie., may. 29 - mié., jun. 3

2:28 pm - 4:25 pm

ISP

NAS

25h 57m

2 stops

12:00 pm - 11:00 am

NAS

ISP

23h 00m

1 stop

$546Multiple Airlines

lun., may. 11 - lun., may. 18

5:25 pm - 2:37 pm

ISP

UVF

21h 12m

2 stops

3:57 pm - 11:05 am

UVF

ISP

19h 08m

2 stops

$983Multiple Airlines

lun., abr. 27 - mar., may. 5

Frontier flights from Islip, New York to Caribbean

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

Frontier

Apr 27

ISP4:07 pmIslip Long Island

9h 54m

1 stop

SJU2:01 amSan Juan Luis Munoz Marin Intl

May 5

SJU3:03 amSan Juan Luis Munoz Marin Intl

7h 02m

1 stop

ISP10:05 amIslip Long Island

$176

Frontier

Apr 11

ISP11:15 amIslip Long Island

14h 46m

1 stop

SJU2:01 amSan Juan Luis Munoz Marin Intl

Apr 18

SJU8:00 amSan Juan Luis Munoz Marin Intl

25h 13m

1 stop

ISP9:13 amIslip Long Island

$186

Frontier

Apr 23

ISP8:31 pmIslip Long Island

26h 58m

1 stop

SJU11:29 pmSan Juan Luis Munoz Marin Intl

Apr 26

SJU6:30 amSan Juan Luis Munoz Marin Intl

26h 58m

1 stop

ISP9:28 amIslip Long Island

$194

Southwest flights from Islip, New York to Caribbean

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

Southwest

May 29

ISP6:00 amIslip Long Island

12h 30m

2 stops

NAS6:30 pmNassau Intl

Jun 3

NAS8:45 amNassau Intl

7h 50m

1 stop

ISP4:35 pmIslip Long Island

$525

Southwest

May 29

ISP8:35 amIslip Long Island

9h 55m

2 stops

NAS6:30 pmNassau Intl

Jun 3

NAS2:10 pmNassau Intl

8h 00m

2 stops

ISP10:10 pmIslip Long Island

$535

Southwest

May 11

ISP6:50 amIslip Long Island

11h 40m

1 stop

NAS6:30 pmNassau Intl

May 18

NAS2:10 pmNassau Intl

8h 20m

1 stop

ISP10:30 pmIslip Long Island

$576

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

lun. 4/27

4:07 pm-2:01 am

1 stop9h 54m

San Juan Luis Munoz Marin Intl

mar. 5/5

3:03 am-10:05 am

1 stop7h 02m

$176

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

sáb. 4/11

11:15 am-2:01 am

1 stop14h 46m

San Juan Luis Munoz Marin Intl

sáb. 4/18

8:00 am-9:13 am

1 stop25h 13m

$186

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

jue. 4/23

8:31 pm-11:29 pm

1 stop26h 58m

San Juan Luis Munoz Marin Intl

dom. 4/26

6:30 am-9:28 am

1 stop26h 58m

$194

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

mié. 5/6

11:00 am-10:43 pm

1 stop11h 43m

San Juan Luis Munoz Marin Intl

vie. 5/8

3:03 am-10:05 am

1 stop7h 02m

$196

IslipSantiago de los Caballeros

ISP - STI

ISPSTI

Islip Long Island

jue. 5/7

8:59 pm-8:51 am

1 stop11h 52m

Santiago de los Caballeros

mié. 5/13

8:57 am-8:04 pm

1 stop11h 07m

$361

IslipSantiago de los Caballeros

ISP - STI

ISPSTI

Islip Long Island

mié. 5/6

8:59 pm-8:51 am

1 stop11h 52m

Santiago de los Caballeros

mié. 5/13

7:31 am-5:44 pm

1 stop10h 13m

$365

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

vie. 5/29

6:00 am-6:30 pm

2 stops12h 30m

Nassau Intl

mié. 6/3

8:45 am-4:35 pm

1 stop7h 50m

$525

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

vie. 5/29

8:35 am-6:30 pm

2 stops9h 55m

Nassau Intl

mié. 6/3

2:10 pm-10:10 pm

2 stops8h 00m

$535

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

lun. 5/11

2:28 pm-4:25 pm

2 stops25h 57m

Nassau Intl

lun. 5/18

12:00 pm-11:00 am

1 stop23h 00m

$546

IslipCastries

ISP - UVF

ISPUVF

Islip Long Island

lun. 4/27

5:25 pm-2:37 pm

2 stops21h 12m

Castries Hewanorra

mar. 5/5

3:57 pm-11:05 am

2 stops19h 08m

$983

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

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

You could potentially save up to 32% 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 25m
Direct flights	None

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

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 March 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 $106	Free Cancellation	Rating 5.7 3,013 reviews	Search Frontier flights
JetBlue	PriceFrom $301	Free Cancellation	Rating 7.2 2,909 reviews	Search JetBlue flights
Delta	PriceFrom $350	Free Cancellation	Rating 7.9 8,351 reviews	Search Delta flights
Southwest	PriceFrom $367	Free Cancellation	Rating 8.0 4,332 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.