Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Islip, New York to Caribbean Islands from $109

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 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Frontier Logo
7:33 pm - 2:50 amISP-SJU
7h 17m1 stop
Frontier Logo
3:39 am - 10:55 amSJU-ISP
7h 16m1 stop
$206Frontier
Find Deal
Sat, Aug 30 - Fri, Sep 5
Frontier Logo
7:33 pm - 2:50 amISP-SJU
7h 17m1 stop
Frontier Logo
3:39 am - 10:55 amSJU-ISP
7h 16m1 stop
$216Frontier
Find Deal
Sat, Aug 23 - Fri, Sep 5
Frontier Logo
5:05 pm - 2:54 amISP-SJU
8h 49m1 stop
Frontier Logo
3:59 am - 10:37 amSJU-ISP
7h 38m1 stop
$218Frontier
Find Deal
Wed, Nov 12 - Mon, Nov 17
Frontier Logo
11:35 am - 2:34 amISP-SJU
14h 59m1 stop
Frontier Logo
3:39 am - 10:40 amSJU-ISP
7h 01m1 stop
$219Frontier
Find Deal
Wed, Sep 24 - Mon, Sep 29
JetBlue Logo
12:15 pm - 10:19 pmISP-SJU
9h 04m1 stop
JetBlue Logo
5:05 am - 11:18 amSJU-ISP
7h 13m1 stop
$340JetBlue
Find Deal
Wed, Nov 12 - Tue, Nov 18
Logo
8:00 am - 11:13 amISP-STT
27h 13m2 stops
Logo
2:43 pm - 11:41 pmSTT-ISP
8h 58m1 stop
$416
Find Deal
Wed, Aug 27 - Wed, Sep 3
Logo
8:00 am - 11:13 amISP-STT
27h 13m2 stops
Logo
2:43 pm - 11:41 pmSTT-ISP
8h 58m1 stop
$425
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
12:55 pm - 12:35 amISP-SJU
10h 40m2 stops
Southwest Logo
6:40 am - 4:55 pmSJU-ISP
11h 15m2 stops
$427Southwest
Find Deal
Mon, Nov 17 - Fri, Nov 21
JetBlue Logo
12:15 pm - 4:55 pmISP-NAS
4h 40m1 stop
JetBlue Logo
1:21 pm - 7:32 pmNAS-ISP
6h 11m1 stop
$476JetBlue
Find Deal
Sun, Nov 16 - Wed, Nov 26
Southwest Logo
6:15 am - 1:45 pmISP-PLS
7h 30m1 stop
Southwest Logo
2:40 pm - 9:35 pmPLS-ISP
6h 55m1 stop
$542Southwest
Find Deal
Tue, Nov 4 - Tue, Nov 11

Frontier flights from Islip, New York to Caribbean Islands

Our best Frontier deals on Islip, New York to Caribbean Islands flight tickets
Frontier
Aug 30
ISP7:33 pmIslip Long Island
7h 17m
1 stop
SJU2:50 amSan Juan Luis Munoz Marin Intl
Sep 5
SJU3:39 amSan Juan Luis Munoz Marin Intl
7h 16m
1 stop
ISP10:55 amIslip Long Island
$206
Find similar
Frontier
Aug 23
ISP7:33 pmIslip Long Island
7h 17m
1 stop
SJU2:50 amSan Juan Luis Munoz Marin Intl
Sep 5
SJU3:39 amSan Juan Luis Munoz Marin Intl
7h 16m
1 stop
ISP10:55 amIslip Long Island
$216
Find similar
Frontier
Nov 12
ISP5:05 pmIslip Long Island
8h 49m
1 stop
SJU2:54 amSan Juan Luis Munoz Marin Intl
Nov 17
SJU3:59 amSan Juan Luis Munoz Marin Intl
7h 38m
1 stop
ISP10:37 amIslip Long Island
$218
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
Nov 12
ISP12:15 pmIslip Long Island
9h 04m
1 stop
SJU10:19 pmSan Juan Luis Munoz Marin Intl
Nov 18
SJU5:05 amSan Juan Luis Munoz Marin Intl
7h 13m
1 stop
ISP11:18 amIslip Long Island
$340
Find similar
JetBlue
Nov 16
ISP12:15 pmIslip Long Island
4h 40m
1 stop
NAS4:55 pmNassau Intl
Nov 26
NAS1:21 pmNassau Intl
6h 11m
1 stop
ISP7:32 pmIslip Long Island
$476
Find similar
JetBlue
Sep 14
ISP4:19 pmIslip Long Island
16h 15m
1 stop
SDQ8:34 amSanto Domingo Las Americas
Sep 21
SDQ2:34 pmSanto Domingo Las Americas
20h 16m
1 stop
ISP10:50 amIslip Long Island
$533
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 August 1, 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

Sat 8/30

7:33 pm-2:50 am

1 stop7h 17m

San Juan Luis Munoz Marin Intl

Fri 9/5

3:39 am-10:55 am

1 stop7h 16m

$206

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sat 8/23

7:33 pm-2:50 am

1 stop7h 17m

San Juan Luis Munoz Marin Intl

Fri 9/5

3:39 am-10:55 am

1 stop7h 16m

$216

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 11/12

5:05 pm-2:54 am

1 stop8h 49m

San Juan Luis Munoz Marin Intl

Mon 11/17

3:59 am-10:37 am

1 stop7h 38m

$218

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 9/24

11:35 am-2:34 am

1 stop14h 59m

San Juan Luis Munoz Marin Intl

Mon 9/29

3:39 am-10:40 am

1 stop7h 01m

$219

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 11/12

12:15 pm-10:19 pm

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Tue 11/18

5:05 am-11:18 am

1 stop7h 13m

$340

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Wed 8/27

8:00 am-11:13 am

2 stops27h 13m

Saint Thomas Island Cyril E King

Wed 9/3

2:43 pm-11:41 pm

1 stop8h 58m

$416

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Wed 8/27

8:00 am-11:13 am

2 stops27h 13m

Saint Thomas Island Cyril E King

Wed 9/3

2:43 pm-11:41 pm

1 stop8h 58m

$425

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Mon 11/17

12:55 pm-12:35 am

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Fri 11/21

6:40 am-4:55 pm

2 stops11h 15m

$427

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Sun 11/16

12:15 pm-4:55 pm

1 stop4h 40m

Nassau Intl

Wed 11/26

1:21 pm-7:32 pm

1 stop6h 11m

$476

IslipProvidenciales

ISP - PLS

ISPPLS

Islip Long Island

Tue 11/4

6:15 am-1:45 pm

1 stop7h 30m

Providenciales

Tue 11/11

2:40 pm-9:35 pm

1 stop6h 55m

$542

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 November is, on average, the cheapest month to fly to Caribbean Islands from Islip, New York, with most prices found around $204. The month of February is another great option to travel to Caribbean Islands, with average flight prices from Islip, New York averaging around $210.

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

Best Price Found

$109

Fastest flight time

4h 40m

Direct flights

None

Airports in Caribbean Islands

8 airports
The best one-way flight to Caribbean Islands from Islip, New York in the past 72 hours is $109. The best round-trip flight deal from Islip, New York to Caribbean Islands found on momondo in the last 72 hours is $206.
The fastest flight from Islip, New York to Caribbean Islands takes 4h 40m
There are no direct flights from Islip, New York to Caribbean Islands. Popular non-direct routes for this connection are Islip Long Island Airport - Santo Domingo Las Americas Airport, Islip Long Island Airport - Punta Cana Airport and Islip Long Island Airport - San Juan Luis Munoz Marin Intl Airport.
There are 8 airports near Caribbean Islands: Santo Domingo Las Americas (SDQ), Nassau Intl (NAS), Punta Cana (PUJ), Montego Bay Sangster Intl (MBJ), Providenciales (PLS), Santiago de los Caballeros (STI), Oranjestad Reina Beatrix (AUA), San Juan Luis Munoz Marin Intl (SJU)
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 $59Free CancellationRating
5.8
3,241 reviews
Search Frontier flights
JetBluePriceFrom $231Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
SouthwestPriceFrom $477Free CancellationRating
8.0
4,246 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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 8/6
Wed 8/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Caribbean Islands

Popular cities in Caribbean Islands

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $48
Flights to Londonfrom $310
Flights to Bangkokfrom $512
Flights to Tokyofrom $493
Flights to Los Angelesfrom $37
Flights to Parisfrom $255
Flights to Copenhagenfrom $268
Flights to Istanbulfrom $438
Flights to Manilafrom $523
Flights to Miamifrom $58
Flights to Romefrom $178
Flights to Chicagofrom $59