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Cheap flights from Islip, New York to Saint Thomas Island from $853

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Saint Thomas Island departing on 7/10. 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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0 bags

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Find the cheapest flights from Islip, New York to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
6:00 am - 3:17 pm
ISP
-
STT
33h 17m
2 stops
JetBlue Logo
4:27 pm - 11:26 pm
STT
-
ISP
30h 59m
2 stops
$853JetBlue
Fri, Jul 10 - Fri, Jul 24
Multiple Airlines Logo
6:00 am - 3:17 pm
ISP
-
STT
33h 17m
2 stops
Multiple Airlines Logo
5:40 pm - 9:14 am
STT
-
ISP
15h 34m
2 stops
$861Multiple Airlines
Fri, Jul 10 - Fri, Jul 24
JetBlue Logo
6:00 am - 3:17 pm
ISP
-
STT
33h 17m
2 stops
JetBlue Logo
4:27 pm - 11:26 pm
STT
-
ISP
30h 59m
2 stops
$863JetBlue
Fri, Jul 10 - Fri, Jul 24
Multiple Airlines Logo
6:00 am - 3:17 pm
ISP
-
STT
33h 17m
2 stops
Multiple Airlines Logo
5:40 pm - 9:14 am
STT
-
ISP
15h 34m
2 stops
$943Multiple Airlines
Fri, Jul 10 - Fri, Jul 24
Multiple Airlines Logo
7:25 am - 2:03 pm
ISP
-
STT
6h 38m
1 stop
Multiple Airlines Logo
4:27 pm - 11:26 pm
STT
-
ISP
30h 59m
2 stops
$945Multiple Airlines
Fri, Jul 10 - Fri, Jul 24
Multiple Airlines Logo
7:25 am - 2:03 pm
ISP
-
STT
6h 38m
1 stop
Multiple Airlines Logo
5:40 pm - 9:14 am
STT
-
ISP
15h 34m
2 stops
$973Multiple Airlines
Fri, Jul 10 - Fri, Jul 24
Multiple Airlines Logo
7:25 am - 2:03 pm
ISP
-
STT
6h 38m
1 stop
Multiple Airlines Logo
4:27 pm - 11:26 pm
STT
-
ISP
30h 59m
2 stops
$980Multiple Airlines
Fri, Jul 10 - Fri, Jul 24
Multiple Airlines Logo
7:25 am - 2:03 pm
ISP
-
STT
6h 38m
1 stop
Multiple Airlines Logo
12:57 pm - 9:14 am
STT
-
ISP
20h 17m
2 stops
$1,020Multiple Airlines
Fri, Jul 10 - Fri, Jul 24

JetBlue flights from Islip, New York to Saint Thomas Island

Our best JetBlue deals on Islip, New York to Saint Thomas Island flight tickets
JetBlue
Jul 10
ISP6:00 amIslip Long Island
33h 17m
2 stops
STT3:17 pmSaint Thomas Island Cyril E King
Jul 24
STT4:27 pmSaint Thomas Island Cyril E King
30h 59m
2 stops
ISP11:26 pmIslip Long Island
$853
JetBlue
Jul 10
ISP6:00 amIslip Long Island
33h 17m
2 stops
STT3:17 pmSaint Thomas Island Cyril E King
Jul 24
STT4:27 pmSaint Thomas Island Cyril E King
30h 59m
2 stops
ISP11:26 pmIslip Long Island
$863

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York 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, momondo users made 832,500 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from Islip, New York to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

6:00 am-3:17 pm

2 stops33h 17m

Saint Thomas Island Cyril E King

Fri 7/24

4:27 pm-11:26 pm

2 stops30h 59m

$853

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

6:00 am-3:17 pm

2 stops33h 17m

Saint Thomas Island Cyril E King

Fri 7/24

5:40 pm-9:14 am

2 stops15h 34m

$861

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

6:00 am-3:17 pm

2 stops33h 17m

Saint Thomas Island Cyril E King

Fri 7/24

4:27 pm-11:26 pm

2 stops30h 59m

$863

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

6:00 am-3:17 pm

2 stops33h 17m

Saint Thomas Island Cyril E King

Fri 7/24

5:40 pm-9:14 am

2 stops15h 34m

$943

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

7:25 am-2:03 pm

1 stop6h 38m

Saint Thomas Island Cyril E King

Fri 7/24

4:27 pm-11:26 pm

2 stops30h 59m

$945
Quickest round-trip

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

7:25 am-2:03 pm

1 stop6h 38m

Saint Thomas Island Cyril E King

Fri 7/24

5:40 pm-9:14 am

2 stops15h 34m

$973

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

7:25 am-2:03 pm

1 stop6h 38m

Saint Thomas Island Cyril E King

Fri 7/24

4:27 pm-11:26 pm

2 stops30h 59m

$980

IslipSaint Thomas Island

ISP - STT

ISPSTT

Islip Long Island

Fri 7/10

7:25 am-2:03 pm

1 stop6h 38m

Saint Thomas Island Cyril E King

Fri 7/24

12:57 pm-9:14 am

2 stops20h 17m

$1,020

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Islip, New York to Saint Thomas Island

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 day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Islip, New York is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $383. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Islip, New York to Saint Thomas Island for around $522.

When to book flights from Islip, New York to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Saint Thomas Island (ISP to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Saint Thomas Island

Fastest flight time

33h 17m

Direct flights

None
The fastest flight from Islip, New York to Saint Thomas Island takes 33h 17m
There are no direct flights from Islip, New York to Saint Thomas Island. There are no popular flight routes from Islip, New York to Saint Thomas Island.
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Frequently asked questions about flying from Islip, New York to Saint Thomas Island

  • How far is Islip Long Island to Saint Thomas Island Cyril E King by plane?

    Islip Long Island and Saint Thomas Island Cyril E King are 1621.8 mi apart from one another. Flights usually cover this in 33h 17m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Islip Long Island Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Islip Long Island Airport to Saint Thomas Island Cyril E King Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Islip Long Island Airport to Saint Thomas Island Cyril E King Airport?

    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 Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Saint Thomas Island?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Islip to Saint Thomas Island. momondo saves you time and could save you money on your trip.

Can I find flights from Islip to Saint Thomas Island with flexible booking policies on momondo?

Flights from Islip to Saint Thomas Island with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Islip to Saint Thomas Island?

Once you have performed a search for Islip to Saint Thomas Island flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Islip to Saint Thomas Island right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Saint Thomas Island from Islip. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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