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ISP - LON

$3,015 Find cheap flights from Islip, New York to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to London departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/9
Sun 6/16

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to London, as well as popular online travel agencies
In the last 7 days travelers have searched 43,895,468 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Islip to London (ISP-LON)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:05 pm - 6:55 amISP-LHR
11h 50m1 stop
4:05 pm - 2:54 pmLHR-ISP
27h 49m2 stops
$3,015
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Thu, Aug 15 - Sun, Aug 18

Flights from Islip to London - Travel Insights & Trends

Get data-powered insights and trends into flights from Islip to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Islip, New York to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Islip, New York to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Islip, New York to London is February, where tickets cost $555 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $807 and $775 respectively.

How far in advance should I book a flight from Islip, New York to London?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Islip, New York to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Islip, New York to London, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 30 days before departure.

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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to London

  • What is the cheapest flight from Islip, New York to London?

    In the last 3 days, the lowest price for a flight from Islip, New York to London was $3,015 for a round-trip ticket.

  • Do I need a passport to fly between Islip and London?

    A passport is required to fly from Islip to London.

  • Which aircraft models fly most regularly from Islip to London?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Islip with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Islip - London Flights

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Islip (undefined)United States

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London - Islip

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