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Cheap flights from Islip, New York to Caribbean Islands from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Caribbean Islands departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip, New York to Caribbean Islands

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:41 pm - 9:55 am
ISP
-
SJU
13h 14m1 stop
Frontier Logo
3:55 am - 10:40 am
SJU
-
ISP
7h 45m1 stop
$180Frontier
seg, mar 2 - ter, mar 3
Frontier Logo
7:56 pm - 8:54 am
ISP
-
SJU
11h 58m1 stop
Frontier Logo
9:04 pm - 8:09 pm
SJU
-
ISP
24h 05m1 stop
$181Frontier
sáb, jan 10 - qui, jan 15
Frontier Logo
6:00 am - 8:58 am
ISP
-
SJU
25h 58m1 stop
Frontier Logo
8:00 am - 8:40 am
SJU
-
ISP
25h 40m1 stop
$193Frontier
qui, jan 1 - sáb, jan 31
Frontier Logo
7:56 pm - 8:54 am
ISP
-
SJU
11h 58m1 stop
Frontier Logo
7:34 pm - 8:55 am
SJU
-
ISP
14h 21m1 stop
$200Frontier
sáb, jan 10 - sáb, jan 17
Frontier Logo
7:41 pm - 9:55 am
ISP
-
SJU
13h 14m1 stop
Frontier Logo
3:55 am - 10:40 am
SJU
-
ISP
7h 45m1 stop
$201Frontier
sáb, fev 28 - dom, mar 1
Multiple Airlines Logo
11:50 am - 11:00 am
ISP
-
NAS
47h 10m2 stops
Multiple Airlines Logo
12:00 pm - 8:40 am
NAS
-
ISP
20h 40m1 stop
$469Multiple Airlines
sáb, jan 24 - sáb, jan 31
JetBlue Logo
12:25 pm - 10:37 am
ISP
-
STI
21h 12m1 stop
JetBlue Logo
11:47 am - 11:33 am
STI
-
ISP
24h 46m1 stop
$504JetBlue
dom, jan 25 - dom, fev 1
JetBlue Logo
12:25 pm - 12:34 pm
ISP
-
NAS
24h 09m1 stop
JetBlue Logo
5:46 pm - 11:33 am
NAS
-
ISP
17h 47m1 stop
$512JetBlue
sáb, jan 24 - sáb, jan 31
JetBlue Logo
10:00 am - 5:09 pm
ISP
-
MBJ
7h 09m1 stop
JetBlue Logo
6:17 pm - 8:52 am
MBJ
-
ISP
14h 35m1 stop
$537JetBlue
dom, jan 25 - dom, fev 1
JetBlue Logo
12:25 pm - 12:34 pm
ISP
-
NAS
24h 09m1 stop
JetBlue Logo
3:10 pm - 8:52 am
NAS
-
ISP
17h 42m1 stop
$541JetBlue
dom, jan 25 - dom, fev 1

Frontier flights from Islip, New York to Caribbean Islands

Our best Frontier deals on Islip, New York to Caribbean Islands flight tickets
Frontier
Mar 2
ISP7:41 pmIslip Long Island
13h 14m
1 stop
SJU9:55 amSan Juan Luis Munoz Marin Intl
Mar 3
SJU3:55 amSan Juan Luis Munoz Marin Intl
7h 45m
1 stop
ISP10:40 amIslip Long Island
$180
Find similar
Frontier
Jan 8
ISP8:40 pmIslip Long Island
29h 10m
1 stop
SJU2:50 amSan Juan Luis Munoz Marin Intl
Jan 15
SJU9:04 pmSan Juan Luis Munoz Marin Intl
24h 05m
1 stop
ISP8:09 pmIslip Long Island
$181
Find similar
Frontier
Jan 1
ISP6:00 amIslip Long Island
25h 58m
1 stop
SJU8:58 amSan Juan Luis Munoz Marin Intl
Jan 31
SJU8:00 amSan Juan Luis Munoz Marin Intl
25h 40m
1 stop
ISP8:40 amIslip Long Island
$193
Find similar

JetBlue flights from Islip, New York to Caribbean Islands

Our best JetBlue deals on Islip, New York to Caribbean Islands flight tickets
JetBlue
Jan 27
ISP12:25 pmIslip Long Island
6h 37m
1 stop
SJU8:02 pmSan Juan Luis Munoz Marin Intl
Jan 30
SJU6:01 amSan Juan Luis Munoz Marin Intl
6h 32m
1 stop
ISP11:33 amIslip Long Island
$310
Find similar
JetBlue
Feb 7
ISP11:00 amIslip Long Island
7h 19m
1 stop
SJU7:19 pmSan Juan Luis Munoz Marin Intl
Feb 13
SJU8:00 pmSan Juan Luis Munoz Marin Intl
13h 40m
1 stop
ISP8:40 amIslip Long Island
$319
Find similar
JetBlue
Mar 17
ISP8:22 pmIslip Long Island
11h 49m
1 stop
NAS8:11 amNassau Intl
Mar 19
NAS6:30 pmNassau Intl
5h 25m
1 stop
ISP11:55 pmIslip Long Island
$394
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York to Caribbean Islands that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated dezembro 11, 2025.
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

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

seg 3/2

7:41 pm-9:55 am

1 stop13h 14m

San Juan Luis Munoz Marin Intl

ter 3/3

3:55 am-10:40 am

1 stop7h 45m

$180

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

sáb 1/10

7:56 pm-8:54 am

1 stop11h 58m

San Juan Luis Munoz Marin Intl

qui 1/15

9:04 pm-8:09 pm

1 stop24h 05m

$181

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

qui 1/1

6:00 am-8:58 am

1 stop25h 58m

San Juan Luis Munoz Marin Intl

sáb 1/31

8:00 am-8:40 am

1 stop25h 40m

$193

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

sáb 1/10

7:56 pm-8:54 am

1 stop11h 58m

San Juan Luis Munoz Marin Intl

sáb 1/17

7:34 pm-8:55 am

1 stop14h 21m

$200

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

sáb 2/28

7:41 pm-9:55 am

1 stop13h 14m

San Juan Luis Munoz Marin Intl

dom 3/1

3:55 am-10:40 am

1 stop7h 45m

$201

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

sáb 1/24

11:50 am-11:00 am

2 stops47h 10m

Nassau Intl

sáb 1/31

12:00 pm-8:40 am

1 stop20h 40m

$469

IslipSantiago de los Caballeros

ISP - STI

ISPSTI

Islip Long Island

dom 1/25

12:25 pm-10:37 am

1 stop21h 12m

Santiago de los Caballeros

dom 2/1

11:47 am-11:33 am

1 stop24h 46m

$504

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

sáb 1/24

12:25 pm-12:34 pm

1 stop24h 09m

Nassau Intl

sáb 1/31

5:46 pm-11:33 am

1 stop17h 47m

$512

IslipMontego Bay

ISP - MBJ

ISPMBJ

Islip Long Island

dom 1/25

10:00 am-5:09 pm

1 stop7h 09m

Montego Bay Sangster Intl

dom 2/1

6:17 pm-8:52 am

1 stop14h 35m

$537

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

dom 1/25

12:25 pm-12:34 pm

1 stop24h 09m

Nassau Intl

dom 2/1

3:10 pm-8:52 am

1 stop17h 42m

$541

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Caribbean Islands from

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

What is the cheapest month to fly to Caribbean Islands?

The month of February is, on average, the cheapest month to fly to Caribbean Islands from Islip, New York, with most prices found around $210. The month of April is another great option to travel to Caribbean Islands, with average flight prices from Islip, New York averaging around $299.

What is the cheapest day to depart on your flight to Caribbean Islands?

The cheapest day to depart from Islip, New York to Caribbean Islands is on a Friday. Travelers who choose to depart for Caribbean Islands on a Friday will often find tickets for as low as $260. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $734. These prices are subject to change though, so be sure to set up a Price Alert for flights to Caribbean Islands.

What is the cheapest time of day to depart on your flight to Caribbean Islands?

According to our data, the cheapest time of day to fly to Caribbean Islands is in the evening. momondo users have found flights departing from Islip, New York to Caribbean Islands in the evening for as low as $208. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $390. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 23m

Direct flights

None
The fastest flight from Islip, New York to Caribbean Islands takes 5h 23m
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

  • 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?

  • 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?

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
FrontierPriceFrom $111Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
JetBluePriceFrom $216Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights
DeltaPriceFrom $350Free CancellationRating
7.9
8,008 reviews
Search Delta flights
SouthwestPriceFrom $367Free CancellationRating
7.9
4,252 reviews
Search Southwest 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.

An easier way to manage your Caribbean Islands trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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sáb 1/10
sáb 1/17
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