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Saint Thomas Island

$219+ Cheap flights from Islip, NY (ISP) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — STT
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Islip to Saint Thomas Island

Best flights from Islip to Saint Thomas Island
Discover carefully curated flight deals from Islip to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/297:43 pmISP - STT
1 stop18h 09mMultiple Airlines
Wed 2/45:28 pmSTT - ISP
2 stops50h 10mMultiple Airlines
Deal found 12/11$613
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:42 pmISP - STT
2 stops21h 33mJetBlue
Sat 3/285:10 pmSTT - ISP
2 stops15h 42mJetBlue
Deal found 12/10$804
This Southwest deal was found by Cheapflights users on 12/10. 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 3/216:00 pmISP - STT
2 stops18h 25mSouthwest
Sat 3/281:50 pmSTT - ISP
1 stop9h 45mSouthwest
Deal found 12/10$1,359
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/14:40 pmISP - STT
1 stop17h 51mMultiple Airlines
Mon 1/512:31 pmSTT - ISP
2 stops47h 39mMultiple Airlines
Deal found 12/11$819
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/17:40 pmISP - STT
2 stops17h 20mJetBlue
Mon 1/55:28 pmSTT - ISP
2 stops16h 24mJetBlue
Deal found 12/11$1,072
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2812:30 pmISP - STT
3 stops19h 15mMultiple Airlines
Wed 2/48:00 amSTT - ISP
2 stops12h 45mMultiple Airlines
Deal found 12/11$1,279

Find flight deals from Islip to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$613
(Kiwi.com)

One-way from

$219
(Kiwi.com)

Popular in

April

Cheapest in

May

Average price

$584
Provider with most accurate pricing for Islip Long Island-Saint Thomas Island Cyril E King flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Saint Thomas Island Cyril E King flights.
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From Islip Long Island to Saint Thomas Island Cyril E King
Search Deals
One-way flight from Islip Long Island to Saint Thomas Island Cyril E King
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Saint Thomas Island 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 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Islip to Saint Thomas Island that are best for you.

Fly from

Islip

Fly to

Saint Thomas Island

Route

Depart

Return

Price

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Thu 1/29

7:43 pm-2:52 pm

1 stop18h 09m

Saint Thomas Island Cyril E King

Wed 2/4

5:28 pm-6:38 pm

2 stops50h 10m

$613

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Sat 3/21

6:42 pm-4:15 pm

2 stops21h 33m

Saint Thomas Island Cyril E King

Sat 3/28

5:10 pm-8:52 am

2 stops15h 42m

$804

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Thu 1/1

4:40 pm-11:31 am

1 stop17h 51m

Saint Thomas Island Cyril E King

Mon 1/5

12:31 pm-11:10 am

2 stops47h 39m

$819

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Thu 1/1

7:40 pm-2:00 pm

2 stops17h 20m

Saint Thomas Island Cyril E King

Mon 1/5

5:28 pm-8:52 am

2 stops16h 24m

$1,072

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Wed 1/28

12:30 pm-8:45 am

3 stops19h 15m

Saint Thomas Island Cyril E King

Wed 2/4

8:00 am-7:45 pm

2 stops12h 45m

$1,279

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Sat 3/21

6:00 pm-12:25 pm

2 stops18h 25m

Saint Thomas Island Cyril E King

Sat 3/28

1:50 pm-11:35 pm

1 stop9h 45m

$1,359

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Thu 1/29

11:55 am-4:37 pm

3 stops27h 42m

$219

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Wed 1/28

11:50 am-4:37 pm

3 stops27h 47m

$227

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Tue 1/27

12:30 pm-10:00 am

2 stops44h 30m

$1,220

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from Islip to Saint Thomas Island

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Saint Thomas Island in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Saint Thomas Island flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Saint Thomas Island flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Islip, New York-Saint Thomas Island flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Saint Thomas Island flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Islip with our price prediction graph.
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 Islip to Saint Thomas Island

What is the cheapest month to book a flight from Islip, New York to Saint Thomas Island?

Currently, March is the cheapest month in which you can book a flight from Islip, New York to Saint Thomas Island (average of $95). Flying from Islip, New York to Saint Thomas Island in November is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Islip to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Islip, New York to Saint Thomas Island?

    JetBlue can get you from Islip, New York to Saint Thomas Island in just under 21h 33m. Your travel time can differ by up to . The distance from Islip, New York to Saint Thomas Island is about 1623 mi.

  • Can I find deals for flights from Islip to Saint Thomas Island that include hotel bookings?

    Yes. In addition to deals on Islip to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Saint Thomas Island?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Saint Thomas Island.

  • Can I find deals for business class flights from Islip to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from Islip to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Saint Thomas Island?

    Currently, March is the cheapest month in which you can book a flight from Islip, New York to Saint Thomas Island (average of $95). Flying from Islip, New York to Saint Thomas Island in November is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

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