What is the cheapest flight from Islip to London?

In the last 3 days, the lowest price for a flight from Islip to London was £746 for a one-way ticket and £758 for a return. Visit our flight page for the latest deals!>/a>

Which airports will I be using when flying from Islip to London?

When flying out of Islip you will be using Islip Long Island. You will be landing at one of these airports: London Gatwick or London Heathrow. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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 return ticket. You could then fly to London with an airline and back to Islip with another airline. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

What are the most popular airlines flying to London?

The most popular airline among KAYAK users flying to London is Virgin Atlantic, followed by British Airways and United Airlines.

£746 CHEAP FLIGHTS from Islip to London (ISP - LON)

ISP - LON

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Cheapest return fare

£758

Multiple Airlines

Fri 31/7Thu 20/8

ISP - LGW • 2 stops

Cheapest one-way flight

£746

Multiple Airlines

Mon 1/6

ISP - LHR • 2 stops

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to London!

Flight Deals

Cheap Flights from Islip to London (ISP-LON)

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

Round-trip

One-way

Recent return flight deals from Islip to London

Fri, 31 Jul - Thu, 20 Aug

14:28 - 10:00

ISP

LGW

38h 32m

2 stops

14:00 - 10:03

LGW

ISP

25h 03m

1 stop

£758Multiple Airlines

Thu, 11 Jun - Thu, 18 Jun

21:52 - 10:00

ISP

LGW

31h 08m

1 stop

14:00 - 20:57

LGW

ISP

35h 57m

1 stop

£769Multiple Airlines

Fri, 31 Jul - Thu, 20 Aug

10:48 - 10:00

ISP

LGW

18h 12m

1 stop

14:00 - 10:03

LGW

ISP

25h 03m

1 stop

£823Multiple Airlines

Thu, 11 Jun - Thu, 18 Jun

21:52 - 10:45

ISP

LGW

31h 53m

2 stops

14:00 - 20:57

LGW

ISP

35h 57m

1 stop

£835Multiple Airlines

Mon, 15 Jun - Mon, 22 Jun

21:52 - 10:00

ISP

LGW

31h 08m

1 stop

14:00 - 15:56

LGW

ISP

30h 56m

1 stop

£844Multiple Airlines

Thu, 18 Jun - Thu, 25 Jun

21:52 - 10:00

ISP

LGW

31h 08m

1 stop

14:00 - 20:57

LGW

ISP

35h 57m

1 stop

£845Multiple Airlines

Mon, 15 Jun - Mon, 22 Jun

21:52 - 10:00

ISP

LGW

31h 08m

1 stop

14:00 - 15:56

LGW

ISP

30h 56m

1 stop

£862Multiple Airlines

Thu, 27 Aug - Sun, 30 Aug

12:35 - 11:55

ISP

LHR

18h 20m

2 stops

13:05 - 22:35

LHR

ISP

14h 30m

2 stops

£907Multiple Airlines

Fri, 31 Jul - Thu, 20 Aug

17:00 - 09:35

ISP

LGW

35h 35m

2 stops

12:20 - 21:34

LGW

ISP

38h 14m

2 stops

£916JetBlue

Fri, 31 Jul - Thu, 20 Aug

17:00 - 06:30

ISP

LHR

32h 30m

2 stops

08:15 - 21:34

LHR

ISP

42h 19m

2 stops

£971JetBlue

Booking Insights

Cheapest flight	£746

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 return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

What is the cheapest flight from Islip to London?
In the last 3 days, the lowest price for a flight from Islip to London was £746 for a one-way ticket and £758 for a return.
Which airports will I be using when flying from Islip to London?
When flying out of Islip you will be using Islip Long Island. You will be landing at one of these airports: London Gatwick or London Heathrow.
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 return 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.

Everything you need to know for your flight from Islip to London

Airports

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Islip (ISP)

ISP - LON

£746 Find Cheap Flights from Islip to London

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

Everything you should know

Cheap Flights from Islip to London (ISP-LON)

Recent return flight deals from Islip to London

Recent one-way flight deals from Islip to London

Good to know - Cheap tickets from Islip to London

When to book flights from Islip to London

FAQs for booking flights from Islip to London

What is the cheapest flight from Islip to London?

In the last 3 days, the lowest price for a flight from Islip to London was £746 for a one-way ticket and £758 for a return.

Which airports will I be using when flying from Islip to London?

When flying out of Islip you will be using Islip Long Island. You will be landing at one of these airports: London Gatwick or London Heathrow.

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 return 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.

Everything you need to know for your flight from Islip to London

Information on your arrival and departure airports

Cabin class types available on flights from Islip to London

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

Find direct flights to and from Islip and London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight