ISP - LON

$758 Find Cheap Flights from Islip to London - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$992
Typical prices: $6,213-$6,213
Multiple Airlines
Sat 1/13Fri 1/19
ISP - LHR • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Islip and London. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to London (ISP-LON)

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

Recent round-trip flight deals from Islip to London

Wed, Jan 13 - Tue, Jan 19
Multiple Airlines Logo
11:20 am - 7:30 pmISP  Islip Long Island-LHR London Heathrow
27h 10m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 pm - 9:30 pmLHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$992Multiple Airlines
Wed, Jan 13 - Tue, Jan 19
Multiple Airlines Logo
11:20 am - 7:30 pmISP  Islip Long Island-LHR London Heathrow
27h 10m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 pm - 9:30 pmLHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$993Multiple Airlines
Wed, Jan 13 - Tue, Jan 19
Multiple Airlines Logo
3:50 pm - 10:50 amISP  Islip Long Island-LHR London Heathrow
14h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 pm - 9:30 pmLHR  London Heathrow-ISP Islip Long Island
14h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$994Multiple Airlines
Mon, Mar 1 - Mon, Mar 8
Multiple Airlines Logo
10:55 am - 10:50 amISP  Islip Long Island-LHR London Heathrow
18h 55m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
8:35 pm - 9:30 pmLHR  London Heathrow-ISP Islip Long Island
29h 55m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$995Multiple Airlines
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
12:00 pm - 10:00 amISP  Islip Long Island-LGW London Gatwick
41h 00m2 stops Raleigh-Durham Orlando
Multiple Airlines Logo
2:00 pm - 5:30 pmLGW  London Gatwick-ISP Islip Long Island
32h 30m1 stop Orlando
$1,008Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
3:10 pm - 10:55 amISP  Islip Long Island-LGW London Gatwick
15h 45m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:35 pmLGW  London Gatwick-ISP Islip Long Island
16h 40m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$1,028Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
11:00 am - 10:50 amISP  Islip Long Island-LHR London Heathrow
19h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 pm - 11:35 pmLHR  London Heathrow-ISP Islip Long Island
16h 20m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$1,029Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
3:10 pm - 10:55 amISP  Islip Long Island-LGW London Gatwick
15h 45m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:35 pmLGW  London Gatwick-ISP Islip Long Island
16h 40m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$1,033Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
11:00 am - 10:50 amISP  Islip Long Island-LHR London Heathrow
19h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 pm - 11:35 pmLHR  London Heathrow-ISP Islip Long Island
16h 20m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$1,033Multiple Airlines
Mon, Mar 1 - Mon, Mar 8
Multiple Airlines Logo
4:30 pm - 10:55 amISP  Islip Long Island-LGW London Gatwick
13h 25m2 stops Baltimore/Washington Reykjavik Keflavik Intl
Multiple Airlines Logo
11:55 am - 11:50 pmLGW  London Gatwick-ISP Islip Long Island
16h 55m2 stops Reykjavik Keflavik Intl Baltimore/Washington
$1,041Multiple Airlines
Booking Insights

Price, demand and travel trends for Islip to London flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Islip to London with more confidence.

What is the cheapest Islip to London flight route?

There's little price difference between Islip to London routes. They average around $6,213 round-trip, based on KAYAK data over the past 12 months.

Find deals

Key details for Islip to London flights

Cheapest flight

$758
Flight from Islip to London Heathrow Airport

When to book flights from Islip to London

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

Your Islip to London 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?

    Flights from Islip to London usually depart from Islip Long Island (ISP) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

  • Which airports do connecting flights from Islip to London pass through?

    Most connecting flights from Islip to London pass through Orlando (MCO), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • What popular places can I visit in London?

    Some of the most popular sights in London are Hyde Park, Buckingham Palace and Trafalgar Square. These are among the most viewed places in London on KAYAK.

  • How long is a flight from Islip to London?

    A nonstop flight from Islip to London takes 0h 00m, covering 3,419 miles.

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

    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 changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $992 to $7,585. That means the highest observed fare was about 8x higher than the lowest one.

  • What is the time difference between Islip and London?

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

  • What car rental options are available in London?

    Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near London Heathrow Airport (LHR) — daily rates from around $7:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

    Near London Gatwick Airport (LGW) — daily rates from around $8:

    • GREEN MOTION
    • DRIVALIA
    • U-Save
    • Europcar
    • Alamo

    Near London City Airport (LCY) — daily rates from around $11:

    • GREEN MOTION
    • Budget
    • Hertz
    • Avis
    • Sixt

    Near London Luton Airport (LTN) — daily rates from around $11:

    • GREEN MOTION
    • DRIVALIA
    • Alamo
    • Europcar
    • Budget

    Near London Stansted Airport (STN) — daily rates from around $10:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • U-Save

Your guide to booking Islip to London flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Islip to London

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

Car rentals in London
Hotels in London
Vacations in London