฿3,845+ 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 16/5. 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 — PDX
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags

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 10 April 2026. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Tue 5/5

12:30-23:00

2 stops13h 30m

Portland

Tue 12/5

23:55-13:50

2 stops10h 55m

฿12,592
Fastest return journey

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Wed 10/6

09:00-15:25

1 stop9h 25m

Portland

Sun 14/6

21:20-08:20

1 stop8h 00m

฿15,251

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Thu 7/5

16:30-00:10

2 stops10h 40m

Portland

Thu 14/5

23:55-16:30

2 stops13h 35m

฿16,629

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Tue 21/4

12:30-22:00

2 stops12h 30m

Portland

Sat 25/4

08:00-23:20

2 stops12h 20m

฿19,128

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Thu 23/4

12:30-22:40

2 stops13h 10m

Portland

Mon 27/4

06:25-20:25

2 stops11h 00m

฿19,128

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Sun 5/7

06:00-14:05

2 stops11h 05m

Portland

Sun 5/7

21:20-08:20

1 stop8h 00m

฿19,833

IslipPortland

ISP - PDX

ISPPDX

Islip Long Island

Tue 21/4

12:30-22:00

2 stops12h 30m

Portland

Thu 23/4

08:05-23:30

2 stops12h 25m

฿26,176

IslipPhuket City

ISP - HKT

ISPHKT

Islip Long Island

Sat 23/5

09:59-17:20

2 stops44h 21m

Phuket City

Sat 30/5

16:10-19:45

3 stops38h 35m

฿197,460

IslipPhuket City

ISP - HKT

ISPHKT

Islip Long Island

Wed 20/5

12:30-10:50

2 stops35h 20m

Phuket City

Wed 27/5

21:20-19:45

2 stops33h 25m

฿209,796

IslipPhuket City

ISP - HKT

ISPHKT

Islip Long Island

Sun 24/5

12:30-10:50

2 stops35h 20m

Phuket City

Sat 30/5

03:20-19:45

2 stops27h 25m

฿210,212

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 12 resultsSorted by cheapest first
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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 is the cheapest month to book a flight from Islip, New York?

Currently, June is the cheapest month in which you can book a flight from Islip, New York (average of ฿6,023). Flying from Islip, New York in December will prove the most costly (average of ฿8,266). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Direct flights from New York

Book a direct flight from one of these other cities located in New York.
Direct flights from Rochester
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Direct flights from Buffalo
Direct flights from Albany

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 10 April 2026.

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

    The most selected flight destinations from Islip, New York for the current month are Orlando Airport, West Palm Beach, Tampa. While Orlando Airport, West Palm Beach, Tampa are the top choices made by travellers year-round.

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

    At the present moment the cheapest month to fly from Islip, New York is currently June; with December being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • 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 simply makes it quick and affordable to book flights from Islip by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

    Users can book flights with no change fees policies with our dedicated filters. Book flights from Islip flexibly with Cheapflights today.

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

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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Fly with Cheapflights

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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 simply makes it quick and affordable to book flights from Islip by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Islip with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Islip flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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