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£47+ 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 18/12. 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
21 Dec — 28 Dec1
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 21 November 2025.

Cheapest airline

Spirit Airlines
On average, Spirit Airlines currently has the cheapest one-way flight from Islip Long Island (avg. price of £146).
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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 21 November 2025.

Thu 18/1210:55ISP - BOS
1 stop6h 20mSouthwest
Thu 25/1209:05BOS - ISP
1 stop6h 15mSouthwest
Deal found 18/11£250
Tue 13/106:00ISP - BOS
2 stops11h 10mSouthwest
Wed 14/115:20BOS - ISP
1 stop6h 35mSouthwest
Deal found 20/11£254
Thu 8/112:40ISP - ATL
1 stop4h 40mSouthwest
Sat 10/112:15ATL - ISP
2 stops9h 35mSouthwest
Deal found 19/11£265
Thu 8/106:00ISP - BOS
2 stops11h 10mSouthwest
Sun 18/105:30BOS - ISP
2 stops10h 45mSouthwest
Deal found 18/11£273
Sun 11/105:55ISP - ATL
2 stops10h 00mSouthwest
Wed 14/106:10ATL - ISP
2 stops10h 05mSouthwest
Deal found 19/11£278
Thu 18/1205:50ISP - ATL
2 stops9h 55mSouthwest
Sat 20/1218:45ATL - ISP
1 stop5h 10mSouthwest
Deal found 19/11£282
Thu 18/1205:50ISP - ATL
2 stops9h 55mSouthwest
Thu 25/1206:15ATL - ISP
2 stops9h 05mSouthwest
Deal found 20/11£286
Fri 12/1210:55ISP - BOS
2 stops11h 35mSouthwest
Tue 16/1205:30BOS - ISP
2 stops9h 50mSouthwest
Deal found 19/11£288
Tue 23/1205:40ISP - BOS
1 stop6h 50mSouthwest
Thu 25/1209:05BOS - ISP
1 stop6h 15mSouthwest
Deal found 20/11£297
Sun 21/1214:45ISP - ATL
2 stops7h 20mSouthwest
Thu 25/1206:15ATL - ISP
2 stops9h 05mSouthwest
Deal found 20/11£304
Tue 23/1205:40ISP - BOS
1 stop6h 50mSouthwest
Sat 27/1220:10BOS - ISP
1 stop3h 45mSouthwest
Deal found 19/11£304
Sat 4/406:00ISP - ATL
1 stop5h 55mSouthwest
Wed 8/407:10ATL - ISP
1 stop6h 40mSouthwest
Deal found 18/11£311

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 21 November 2025. 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 18/12

10:55-17:15

1 stop6h 20m

Boston Logan Intl

Thu 25/12

09:05-15:20

1 stop6h 15m

£250

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 13/1

15:45-22:05

1 stop6h 20m

Boston Logan Intl

Wed 14/1

09:35-16:15

1 stop6h 40m

£250

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Thu 8/1

12:40-17:20

1 stop4h 40m

Atlanta Hartsfield-Jackson

Sat 10/1

12:15-21:50

2 stops9h 35m

£265

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Thu 8/1

06:00-17:10

2 stops11h 10m

Boston Logan Intl

Sun 18/1

05:30-16:15

2 stops10h 45m

£273

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Sun 11/1

05:55-15:55

2 stops10h 00m

Atlanta Hartsfield-Jackson

Wed 14/1

06:10-16:15

2 stops10h 05m

£278

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Thu 18/12

05:50-15:45

2 stops9h 55m

Atlanta Hartsfield-Jackson

Sat 20/12

18:45-23:55

1 stop5h 10m

£282

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Sun 21/12

14:45-22:05

2 stops7h 20m

Atlanta Hartsfield-Jackson

Thu 25/12

15:50-22:05

1 stop6h 15m

£282

IslipAtlanta

ISP - ATL

ISPATL

Islip Long Island

Thu 18/12

05:50-15:45

2 stops9h 55m

Atlanta Hartsfield-Jackson

Thu 25/12

06:15-15:20

2 stops9h 05m

£286

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Fri 12/12

10:55-22:30

2 stops11h 35m

Boston Logan Intl

Tue 16/12

05:30-15:20

2 stops9h 50m

£288

IslipBoston

ISP - BOS

ISPBOS

Islip Long Island

Tue 23/12

05:40-12:30

1 stop6h 50m

Boston Logan Intl

Thu 25/12

09:05-15:20

1 stop6h 15m

£297

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 45 results
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Best time to book a flight from Islip

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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

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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 21 November 2025.

  • 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.

  • 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.

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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.

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