ISP - LHR

£564 Find Cheap Flights from Islip to London Heathrow Airport – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£738
Typical prices: £4,620-£4,620
Multiple Airlines
Sat 13/1Fri 19/1
ISP - LHR • 2 stops
Direct flights
Not available
There are currently no direct flights between Islip and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
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We hope you enjoy your trip to London Heathrow Airport!
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Flight Deals

Cheap Flights from Islip to Heathrow (ISP-LHR)

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

Recent return flight deals from Islip to Heathrow

Wed, 13 Jan - Tue, 19 Jan
Multiple Airlines Logo
11:20 - 19:30ISP  Islip Long Island-LHR London Heathrow
27h 10m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 21:30LHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£738Multiple Airlines
Wed, 13 Jan - Tue, 19 Jan
Multiple Airlines Logo
11:20 - 19:30ISP  Islip Long Island-LHR London Heathrow
27h 10m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 21:30LHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£738Multiple Airlines
Wed, 11 Nov - Mon, 16 Nov
Multiple Airlines Logo
16:05 - 19:30ISP  Islip Long Island-LHR London Heathrow
22h 25m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
20:35 - 21:45LHR  London Heathrow-ISP Islip Long Island
30h 10m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£739Multiple Airlines
Fri, 30 Oct - Fri, 6 Nov
Multiple Airlines Logo
11:00 - 10:50ISP  Islip Long Island-LHR London Heathrow
19h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 23:35LHR  London Heathrow-ISP Islip Long Island
16h 20m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£765Multiple Airlines
Fri, 30 Oct - Fri, 6 Nov
Multiple Airlines Logo
11:00 - 10:50ISP  Islip Long Island-LHR London Heathrow
19h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 23:35LHR  London Heathrow-ISP Islip Long Island
16h 20m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£768Multiple Airlines
Thu, 7 Jan - Thu, 21 Jan
Multiple Airlines Logo
15:50 - 19:30ISP  Islip Long Island-LHR London Heathrow
22h 40m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 21:30LHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£769Multiple Airlines
Wed, 14 Oct - Wed, 21 Oct
Multiple Airlines Logo
12:50 - 11:55ISP  Islip Long Island-LHR London Heathrow
18h 05m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
21:25 - 23:40LHR  London Heathrow-ISP Islip Long Island
31h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£772Multiple Airlines
Thu, 7 Jan - Wed, 20 Jan
Multiple Airlines Logo
15:50 - 10:50ISP  Islip Long Island-LHR London Heathrow
14h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 21:30LHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£775Multiple Airlines
Sat, 24 Oct - Wed, 28 Oct
Multiple Airlines Logo
15:50 - 11:50ISP  Islip Long Island-LHR London Heathrow
15h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 22:40LHR  London Heathrow-ISP Islip Long Island
14h 25m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£776Multiple Airlines
Thu, 15 Oct - Mon, 19 Oct
Multiple Airlines Logo
15:10 - 20:20ISP  Islip Long Island-LHR London Heathrow
24h 10m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
21:25 - 22:40LHR  London Heathrow-ISP Islip Long Island
30h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
£776Multiple Airlines
Useful Info

Key details for Islip to London Heathrow Airport flights

Cheapest flight

£564
Flights from Islip to London Heathrow Airport

When to book flights from Islip to Heathrow

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

Your Islip to London Heathrow Airport 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 Islip to London Heathrow Airport?

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

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park, Tower Bridge, and Royal Albert Hall. These are among the most viewed places in London Heathrow Airport on KAYAK.

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

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

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

    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 Islip to London Heathrow Airport 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 £738 to £4,078. That means the highest observed fare was about 6x higher than the lowest one.

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

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

  • Which car hire options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car hire companies, with daily rates starting from around £5 for economy cars. Top options include:
    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

Your guide to booking Islip to London Heathrow Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
    - Hilton London Heathrow Airport

More options for your flight from Islip to Heathrow

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

Car hire in London
Hotels in London
Holidays in London