$142+ Cheap flights from Puerto Rico to Islip, NY (ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ISP
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Puerto Rico to Islip with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Puerto Rico to Islip
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One-way
Cheapest flights from Puerto Rico to IslipExplore the most affordable flight options available from Puerto Rico to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from Puerto Rico to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This Priceline deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:42 pm -
1 stop22h 48m
Mon 10/196:55 pm -
1 stop22h 42m
Deal found 9/8![Frontier logo]()
$284
This Priceline deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:57 am -
1 stop14h 01m
Mon 9/286:48 pm -
1 stop21h 57m
Deal found 9/7![Frontier logo]()
$292
This Priceline deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:42 pm -
1 stop22h 16m
Sat 9/265:43 pm -
1 stop15h 52m
Deal found 9/7![Frontier logo]()
$336
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:00 am -
1 stop9h 58m
Thu 10/15:43 pm -
1 stop8h 09m
Deal found 9/9![Frontier logo]()
$350
This Priceline deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:39 pm -
1 stop25h 24m
Tue 9/225:43 pm -
1 stop15h 52m
Deal found 9/7![Frontier logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:57 am -
1 stop14h 01m
Mon 9/2811:52 am -
2 stops28h 53m
Deal found 9/7![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:39 am -
1 stop30h 51m
Mon 10/193:02 pm -
2 stops18h 16m
Deal found 9/8![Multiple Airlines logo]()
$375
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:20 am -
1 stop10h 10m
Sun 10/256:25 pm -
1 stop7h 28m
Deal found 9/9![Frontier logo]()
$376
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:35 am -
2 stops9h 10m
Mon 10/193:10 pm -
2 stops9h 15m
Deal found 9/8![Southwest logo]()
$382
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 am -
1 stop9h 58m
Mon 9/215:43 pm -
1 stop8h 09m
Deal found 9/7![Frontier logo]()
$386
Best flights from Puerto Rico to IslipDiscover carefully curated flight deals from Puerto Rico to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Puerto Rico to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:57 am -
1 stop14h 01m
Mon 9/2811:52 am -
2 stops28h 53m
Deal found 9/7![Multiple Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:35 am -
2 stops9h 10m
Mon 10/193:10 pm -
2 stops9h 15m
Deal found 9/8![Southwest logo]()
$382
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:20 am -
1 stop10h 10m
Sun 10/256:25 pm -
1 stop7h 28m
Deal found 9/11![Frontier logo]()
$426
This JetBlue deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:32 pm -
1 stop8h 50m
Tue 9/297:00 am -
1 stop6h 37m
Deal found 9/7![JetBlue logo]()
$736
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:55 am -
1 stop14h 36m
Tue 11/1012:00 pm -
2 stops21h 15m
Deal found 9/10![Multiple Airlines logo]()
$375
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:45 am -
1 stop12h 40m
Tue 11/106:05 am -
1 stop6h 25m
Deal found 9/10![Southwest logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:57 am -
1 stop14h 01m
Sat 9/2612:00 pm -
2 stops21h 35m
Deal found 9/7![Multiple Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:05 am -
2 stops9h 25m
Mon 9/281:15 pm -
2 stops10h 40m
Deal found 9/7![Southwest logo]()
$519
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:30 am -
2 stops10h 40m
Sat 9/265:30 am -
2 stops11h 10m
Deal found 9/7![Southwest logo]()
$656
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/16:10 am -
2 stops11h 05m
Mon 1/412:25 pm -
1 stop11h 40m
Deal found 9/8![Southwest logo]()
$716
Last-minute flights from Puerto Rico to IslipDiscover last-minute flight deals from Puerto Rico to Islip. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to Islip. Data last updated September 12, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:39 pm -
1 stop25h 24m
Tue 9/225:43 pm -
1 stop15h 52m
Deal found 9/7![Frontier logo]()
$366
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 am -
1 stop9h 58m
Mon 9/215:43 pm -
1 stop8h 09m
Deal found 9/7![Frontier logo]()
$386
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:00 am -
1 stop9h 58m
Thu 10/15:43 pm -
1 stop8h 09m
Deal found 9/9![Frontier logo]()
$350
This Priceline deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:42 pm -
1 stop22h 16m
Sat 9/265:43 pm -
1 stop15h 52m
Deal found 9/7![Frontier logo]()
$336
This Priceline deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:57 am -
1 stop14h 01m
Mon 9/286:48 pm -
1 stop21h 57m
Deal found 9/7![Frontier logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:57 am -
1 stop14h 01m
Mon 9/2811:52 am -
2 stops28h 53m
Deal found 9/7![Multiple Airlines logo]()
$368
This Priceline deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:42 pm -
1 stop22h 48m
Mon 10/196:55 pm -
1 stop22h 42m
Deal found 9/8![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:39 am -
1 stop30h 51m
Mon 10/193:02 pm -
2 stops18h 16m
Deal found 9/8![Multiple Airlines logo]()
$375
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:35 am -
2 stops9h 10m
Mon 10/193:10 pm -
2 stops9h 15m
Deal found 9/8![Southwest logo]()
$382
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:20 am -
1 stop10h 10m
Sun 10/256:25 pm -
1 stop7h 28m
Deal found 9/9![Frontier logo]()
$376
One-way flights from Puerto Rico to IslipSearch for one-way flight options from Puerto Rico to Islip. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Puerto Rico to Islip. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:39 am -
1 stop6h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:23 am -
1 stop11h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$172
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:20 am -
1 stop10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:59 am -
2 stops15h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$233
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:17 am -
1 stop9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$253
This JetBlue deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:01 am -
1 stop10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![JetBlue logo]()
$264
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:15 am -
2 stops12h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:59 am -
2 stops17h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$281
This JetBlue deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:30 am -
1 stop7h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![JetBlue logo]()
$308
Find flight deals from Puerto Rico to Islip
Keep the following information in mind while searching for Puerto Rico to Islip flight deals. Data was last updated September 12, 2026.
Round-trip from | $284 (Priceline) |
|---|---|
One-way from | $142 (Frontier) |
Popular in | August |
Cheapest in | February |
Average price | $274 |
Cheapflights Fare Finder
Customize your flight search to find flights from Puerto Rico to Islip 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, Cheapflights users made 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from Puerto Rico to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Thu 11/5
11:20 am-5:31 pm
1 stop7h 11m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$198
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Tue 10/6
12:59 am-4:58 pm
2 stops15h 59m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$233
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Wed 10/7
5:01 am-3:36 pm
1 stop10h 35m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Fri 10/16
12:59 am-5:30 pm
2 stops16h 31m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$284
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Thu 10/22
12:59 am-6:00 pm
2 stops17h 01m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$300
Quickest round-trip
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Tue 11/3
8:00 am-1:38 pm
1 stop6h 38m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$308
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Sat 10/31
6:00 am-1:12 pm
1 stop7h 12m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$308
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Wed 11/4
6:01 am-1:38 pm
1 stop8h 37m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$308
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Mon 11/9
7:23 am-5:56 pm
1 stop11h 33m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$322
San JuanIslip
SJU San Juan Luis Munoz Marin Intl - ISP Islip Long Island
SJUISP
San Juan Luis Munoz Marin Intl
Sun 11/1
8:00 am-1:38 pm
1 stop6h 38m
Islip Long Island
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$346
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from Puerto Rico to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Puerto Rico with our price prediction graph.
SJU-ISP
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Puerto Rico to Islip
PR0-ISP
SJU-ISP
No data available for this route at this time. Please check back soon.
Related info for your journey
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