£89+ Cheap flights from Islip, New York

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ISP — AXA
10 Mar — 17 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Islip

Discover essential information about flights departing from Islip, including flight schedules, destinations, airlines operating at the Islip airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 8 February 2026.

Cheapest airline

Spirit Airlines

Good round-trip deal

£161 or less
On average, Spirit Airlines currently has the cheapest one-way flight from Islip Long Island (avg. price of £85).
Search Deals
Price to beat on a round-trip flight from Islip Long Island.
Search Deals

Find flights from Islip

Enter your travel dates to find the best prices.

Cheapest flights from Islip
Explore the most affordable flight options available from Islip. Find the lowest fares based on data from user searches, with prices last updated on 8 February 2026.

Thu 9/416:30
ISP
-
BOS
1 stop3h 35m
Southwest
Mon 13/416:45
BOS
-
ISP
1 stop3h 40m
Southwest
Deal found 6/2£240
Wed 8/412:30
ISP
-
ATL
2 stops8h 30m
Southwest
Wed 15/410:10
ATL
-
ISP
2 stops8h 20m
Southwest
Deal found 6/2£242
Tue 10/312:20
ISP
-
BOS
2 stops9h 05m
Southwest
Wed 11/312:00
BOS
-
ISP
2 stops10h 40m
Southwest
Deal found 7/2£247
Fri 20/314:00
ISP
-
BOS
1 stop7h 05m
Southwest
Mon 23/317:25
BOS
-
ISP
1 stop6h 30m
Southwest
Deal found 7/2£258
Wed 8/406:30
ISP
-
ATL
1 stop4h 20m
Southwest
Fri 10/416:30
ATL
-
ISP
1 stop3h 55m
Southwest
Deal found 6/2£259
Sat 7/306:00
ISP
-
ATL
2 stops10h 00m
Southwest
Mon 9/315:40
ATL
-
ISP
2 stops8h 15m
Southwest
Deal found 7/2£262
Sat 7/306:00
ISP
-
BOS
1 stop10h 10m
Southwest
Mon 9/307:00
BOS
-
ISP
1 stop4h 40m
Southwest
Deal found 6/2£266
Tue 3/315:45
ISP
-
ATL
1 stop4h 20m
Southwest
Mon 9/319:30
ATL
-
ISP
1 stop4h 25m
Southwest
Deal found 6/2£267
Wed 8/712:25
ISP
-
BOS
1 stop5h 20m
Southwest
Sat 11/705:10
BOS
-
ISP
1 stop9h 40m
Southwest
Deal found 6/2£273
Sat 7/306:00
ISP
-
BOS
1 stop10h 10m
Southwest
Sat 14/313:10
BOS
-
ISP
1 stop10h 25m
Southwest
Deal found 6/2£278
Fri 27/213:10
ISP
-
BOS
1 stop5h 15m
Southwest
Sun 1/305:35
BOS
-
ISP
1 stop6h 50m
Southwest
Deal found 5/2£281
Sat 28/312:15
ISP
-
ATL
1 stop8h 25m
Southwest
Mon 30/314:50
ATL
-
ISP
1 stop7h 50m
Southwest
Deal found 5/2£284

Find flights from Islip within your budget

 
Find flights departing from Islip that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 8 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

The Valley

Route

Depart

Return

Price

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Thu 9/4

16:30-20:05

1 stop3h 35m

Boston Logan Intl

Mon 13/4

16:45-20:25

1 stop3h 40m

£240

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Wed 8/4

06:30-13:15

2 stops6h 45m

Atlanta Hartsfield-Jackson

Wed 15/4

15:15-22:40

2 stops7h 25m

£242

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 10/3

12:20-21:25

2 stops9h 05m

Boston Logan Intl

Wed 11/3

12:00-22:40

2 stops10h 40m

£247

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Sat 21/3

06:00-11:55

1 stop5h 55m

Boston Logan Intl

Tue 24/3

19:10-22:50

1 stop3h 40m

£255

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Wed 8/4

06:30-10:50

1 stop4h 20m

Atlanta Hartsfield-Jackson

Fri 10/4

16:30-20:25

1 stop3h 55m

£259

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Sat 7/3

06:00-16:00

2 stops10h 00m

Atlanta Hartsfield-Jackson

Mon 9/3

15:40-23:55

2 stops8h 15m

£262

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Tue 3/3

15:45-20:05

1 stop4h 20m

Atlanta Hartsfield-Jackson

Mon 9/3

19:30-23:55

1 stop4h 25m

£267

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Wed 8/7

12:25-17:45

1 stop5h 20m

Boston Logan Intl

Sat 11/7

05:10-14:50

1 stop9h 40m

£273

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Sat 7/3

06:00-16:10

1 stop10h 10m

Boston Logan Intl

Sat 14/3

13:10-23:35

1 stop10h 25m

£278

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Fri 27/2

13:10-18:25

1 stop5h 15m

Boston Logan Intl

Sun 1/3

05:35-12:25

1 stop6h 50m

£281

Flights are sorted by cheapest return flights first.

Deals found on 7/2

Showing 1-10 of 49 results
1
2
3
...
5

Best time to book a flight from Islip

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

Travel insights for flights from Islip

Get recent, data-driven insights about flights from Islip including ideal travel times, pricing trends, and more.

What are popular destinations to fly to from Islip, New York?

If you’re flying from Islip, New York, these routes are more frequently taken by airlines Orlando (30 flights per day), West Palm Beach (26 flights per day) and Baltimore (18 flights per day).

Fort Lauderdale
Fort Lauderdale
From £161

What is the cheapest place to fly to from Islip, New York?

The cheapest city to fly to from Islip, New York is Fort Lauderdale, with prices starting at £161. Explore other affordable destinations below.

Fort Lauderdale
Fort Lauderdale
From £161

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Related info for your journey

Access useful and relevant information related to your journey from Islip. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 8 February 2026.

  • What are the most popular destinations to fly to from Islip, New York?

    This month, the top selected destinations from Islip, New York are Orlando Airport, West Palm Beach, Fort Lauderdale. Throughout the year, Orlando Airport, West Palm Beach, Fort Lauderdale are some of the top choices made by users flying from Islip, New York.

  • What is the cheapest flight from Islip, New York to anywhere?

    Users have flown out of Islip, New York for as low as £161 to Fort Lauderdale (prices may vary depending on the airline and departure time). On average, users have booked flights for £229 to fly from Islip, New York.

  • How does Cheapflights help users find flights from Islip?

    Cheapflights makes it easy to find flights from Islip by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

  • Why should you use Cheapflights to find cheap flight tickets from Islip?

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Islip for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Islip with no change fees?

    Need flexible booking options for your flight from Islip ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Islip become cheaper?

    Not ready to book yet? You can track prices for flights from Islip on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Islip?

Cheapflights makes it easy to find flights from Islip by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Islip?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Islip for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Islip with no change fees?

Need flexible booking options for your flight from Islip ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Islip become cheaper?

Not ready to book yet? You can track prices for flights from Islip on Cheapflights with our Price Alerts feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.