LHR - ISP

£633 Find Cheap Flights from London Heathrow Airport to Islip – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Direct flights
Not available
There are currently no direct flights between London Heathrow Airport and Islip. You'll need to take a connecting flight to reach the destination.
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Flight Deals

Cheap Flights from Heathrow to Islip (LHR-ISP)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Islip

Mon, 26 Oct - Sat, 31 Oct
Multiple Airlines Logo
07:50 - 19:49LHR  London Heathrow-ISP Islip Long Island
15h 59m2 stops Dublin Boston Logan Intl
Multiple Airlines Logo
07:44 - 21:00ISP  Islip Long Island-LHR London Heathrow
33h 16m2 stops Boston Logan Intl Halifax Intl
£1,191Multiple Airlines
Mon, 26 Oct - Sat, 31 Oct
Multiple Airlines Logo
07:50 - 19:49LHR  London Heathrow-ISP Islip Long Island
15h 59m2 stops Dublin Boston Logan Intl
Multiple Airlines Logo
07:44 - 06:30ISP  Islip Long Island-LHR London Heathrow
18h 46m3 stops Boston Logan Intl Toronto Pearson Intl Ottawa
£1,200Multiple Airlines
Mon, 26 Oct - Sat, 31 Oct
Multiple Airlines Logo
11:40 - 19:45LHR  London Heathrow-ISP Islip Long Island
12h 05m1 stop Boston Logan Intl
Multiple Airlines Logo
07:44 - 08:05ISP  Islip Long Island-LHR London Heathrow
20h 21m2 stops Boston Logan Intl Dublin
£3,286Multiple Airlines
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Key details for London Heathrow Airport to Islip flights

Cheapest flight

£633
Flights from London Heathrow Airport to Islip

When to book flights from Heathrow to Islip

Are your dates flexible? Find out the best times to travel from Heathrow to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport to Islip flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from London Heathrow Airport to Islip?

    Flights from London Heathrow Airport to Islip usually depart from London Heathrow (LHR) and arrive at Islip Long Island (ISP).

  • How long is a flight from London Heathrow Airport to Islip?

    A direct flight from London Heathrow Airport to Islip takes 0h 00m, covering 3,406 miles.

  • Do I need a passport to fly from London Heathrow Airport to Islip?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from London Heathrow Airport to Islip changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £1,191 to £3,286. That means the highest observed fare was about 3x higher than the lowest one.

  • What is the time difference between London Heathrow Airport and Islip?

    Islip is 5 hours behind London Heathrow Airport (Eastern Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Islip Long Island Airport (ISP)?

    Islip Long Island Airport (ISP) hosts 5 major car hire companies, with daily rates starting from around £27 for economy cars. Top options include:
    • Budget
    • Enterprise Rent-A-Car
    • Avis
    • National
    • Empire Rent A Car

More options for your flight from Heathrow to Islip

Complete your trip to Islip with a hotel stay or car hire

Car hire in Islip