Where is Islip (ISP)?

Islip is in USA. Long Island Mac Arthur (ISP) is the main commercial airport with 16 non-stop destinations.

How do you calculate the cheapest month?

We pull 6 months of forward fare data from the affiliate-network month-matrix API for each route, find the lowest price per calendar month, then identify which month is cheapest across multiple major-market origins. Cached daily.

Cheapest month to fly to Islip (ISP)

Compare 6 months of forward fares to Islip, USA from London, New York, and Dubai.

Last updated July 26, 2026 · By Flightmaps Editorial

Limited price data

We don't currently have forward fare coverage for the major routes into Islip (ISP). Try the airport page for full route options:

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Frequently asked questions

Where is Islip (ISP)?

Islip is in USA. Long Island Mac Arthur (ISP) is the main commercial airport with 16 non-stop destinations.
How do you calculate the cheapest month?

We pull 6 months of forward fare data from the affiliate-network month-matrix API for each route, find the lowest price per calendar month, then identify which month is cheapest across multiple major-market origins. Cached daily.

Related guides for Islip

Sibling pages — airport overview, country aggregations, visa context.