Cheap flights from the United Kingdom to Islip, New York

LHR — ISP
10 Dec — 17 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from United Kingdom to Islip

Popular in

July

Cheapest in

February

Average price

£497
Highest demand for flights based on searches. 15% potential increase in price (£66 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in November 2026

Related info for your journey

  • What airport do you fly into for flights to Islip from United Kingdom?

    Located just 7.2 mi from the city center, Islip Long Island (ISP) is the airport most travelers will use when flying to Islip from United Kingdom.

  • What are the most popular routes from United Kingdom to Islip, New York?

  • Can I find deals for flights from United Kingdom to Islip that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Islip flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Islip.

  • Can I find deals for business class flights from United Kingdom to Islip?

    Yes. Cheapflights offers flight deals from United Kingdom to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for United Kingdom to Islip

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