Cheap flights from Islip, New York to the United Kingdom from £234

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to the United Kingdom departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

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Multiple Airlines Logo
19:56 - 10:00ISP-LGW
33h 04m1 stop
Multiple Airlines Logo
14:00 - 08:55LGW-ISP
23h 55m1 stop
£461Multiple Airlines
Find Deal
Sat, 10 Jan - Sat, 17 Jan
Multiple Airlines Logo
19:56 - 06:00ISP-LGW
29h 04m2 stops
Multiple Airlines Logo
14:00 - 19:03LGW-ISP
34h 03m1 stop
£482Multiple Airlines
Find Deal
Sat, 10 Jan - Sat, 17 Jan
Multiple Airlines Logo
09:59 - 07:50ISP-EDI
16h 51m2 stops
Multiple Airlines Logo
09:00 - 19:45EDI-ISP
15h 45m2 stops
£1,123Multiple Airlines
Find Deal
Fri, 9 Jan - Fri, 16 Jan
Multiple Airlines Logo
07:25 - 08:30ISP-LHR
20h 05m2 stops
Multiple Airlines Logo
15:30 - 19:45LHR-ISP
33h 15m2 stops
£1,390Multiple Airlines
Find Deal
Sat, 27 Dec - Mon, 29 Dec
Multiple Airlines Logo
07:25 - 08:30ISP-LHR
20h 05m2 stops
Multiple Airlines Logo
09:55 - 19:45LHR-ISP
38h 50m3 stops
£1,398Multiple Airlines
Find Deal
Sat, 27 Dec - Mon, 29 Dec
Multiple Airlines Logo
09:59 - 10:35ISP-LGW
19h 36m3 stops
Multiple Airlines Logo
20:05 - 19:45LGW-ISP
28h 40m3 stops
£1,592Multiple Airlines
Find Deal
Sat, 27 Dec - Mon, 29 Dec
Multiple Airlines Logo
12:30 - 10:55ISP-LGW
17h 25m2 stops
Multiple Airlines Logo
21:25 - 19:45LGW-ISP
27h 20m3 stops
£1,612Multiple Airlines
Find Deal
Sat, 27 Dec - Mon, 29 Dec
Multiple Airlines Logo
09:59 - 10:55ISP-LGW
19h 56m2 stops
Multiple Airlines Logo
16:35 - 19:45LGW-ISP
32h 10m2 stops
£1,690Multiple Airlines
Find Deal
Sat, 27 Dec - Mon, 29 Dec
Multiple Airlines Logo
12:30 - 07:45ISP-LHR
14h 15m2 stops
Multiple Airlines Logo
09:20 - 16:10LHR-ISP
11h 50m1 stop
£2,001Multiple Airlines
Find Deal
Sat, 10 Jan - Sat, 17 Jan
Multiple Airlines Logo
12:30 - 15:30ISP-LHR
22h 00m2 stops
Multiple Airlines Logo
09:20 - 16:10LHR-ISP
11h 50m1 stop
£2,169Multiple Airlines
Find Deal
Sat, 27 Dec - Mon, 29 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Islip, New York to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 27 November 2025.
Use the filters below to find and compare flights from Islip, New York to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 10/1

19:56-10:00

1 stop33h 04m

London Gatwick

Sat 17/1

14:00-08:55

1 stop23h 55m

£461

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 10/1

19:56-06:00

2 stops29h 04m

London Gatwick

Sat 17/1

14:00-19:03

1 stop34h 03m

£482

IslipEdinburgh

ISP - EDI

ISPEDI

Islip Long Island

Fri 9/1

09:59-07:50

2 stops16h 51m

Edinburgh Turnhouse

Fri 16/1

09:00-19:45

2 stops15h 45m

£1,123

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 27/12

07:25-08:30

2 stops20h 05m

London Heathrow

Mon 29/12

15:30-19:45

2 stops33h 15m

£1,390

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 27/12

07:25-08:30

2 stops20h 05m

London Heathrow

Mon 29/12

09:55-19:45

3 stops38h 50m

£1,398

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 27/12

09:59-10:35

3 stops19h 36m

London Gatwick

Mon 29/12

20:05-19:45

3 stops28h 40m

£1,592

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 27/12

12:30-10:55

2 stops17h 25m

London Gatwick

Mon 29/12

21:25-19:45

3 stops27h 20m

£1,612

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 27/12

09:59-10:55

2 stops19h 56m

London Gatwick

Mon 29/12

16:35-19:45

2 stops32h 10m

£1,690

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 10/1

12:30-07:45

2 stops14h 15m

London Heathrow

Sat 17/1

09:20-16:10

1 stop11h 50m

£2,001

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 27/12

12:30-15:30

2 stops22h 00m

London Heathrow

Mon 29/12

09:20-16:10

1 stop11h 50m

£2,169

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Islip, New York to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Which airlines fly to United Kingdom?

Virgin Atlantic, British Airways and Aer Lingus are the top three most popular airlines that fly to United Kingdom from Islip, New York according to our data. Virgin Atlantic is the first choice among our users, with 39% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 13 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Cheap Islip, New York to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to United Kingdom

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from Islip, New York to United Kingdom takes 14h 05m
There are no direct flights from Islip, New York to United Kingdom. There are no popular flight routes from Islip, New York to United Kingdom.
  • When did momondo last update prices for flights from Islip Long Island Airport to United Kingdom?

    Prices for flights from Islip Long Island Airport to United Kingdom refresh daily.

  • How old do you have to be to fly from Islip Long Island Airport to United Kingdom?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Islip to United Kingdom?

Finding the right flight to United Kingdom from Islip is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

Can I find flights from Islip to United Kingdom with flexible booking policies on momondo?

Yes. All flights to United Kingdom from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Islip to United Kingdom?

momondo provides multiple filters to help you find the best flight to United Kingdom from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Islip to United Kingdom right now. Can momondo alert me if prices change?

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Islip and alert you when they change.

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1 adult
Sat 27/12
Sat 3/1

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