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.

£390 Cheap Flights from Islip to the United Kingdom in 2026

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Find the cheapest flights from Islip, New York to the United Kingdom

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:38 - 10:00

ISP

LGW

35h 22m

1 stop

13:00 - 10:05

LGW

ISP

26h 05m

2 stops

£685Multiple Airlines

Tue, 5 May - Tue, 12 May

17:38 - 10:00

ISP

LGW

35h 22m

1 stop

13:00 - 10:05

LGW

ISP

26h 05m

2 stops

£698Multiple Airlines

Tue, 5 May - Tue, 12 May

11:00 - 10:00

ISP

LGW

18h 00m

1 stop

14:00 - 10:05

LGW

ISP

25h 05m

1 stop

£756Multiple Airlines

Sat, 9 May - Sat, 16 May

16:07 - 23:55

ISP

LGW

26h 48m

2 stops

14:00 - 11:00

LGW

ISP

26h 00m

1 stop

£757Multiple Airlines

Mon, 4 May - Mon, 11 May

11:00 - 10:00

ISP

LGW

18h 00m

1 stop

10:55 - 16:10

LGW

ISP

34h 15m

2 stops

£804Multiple Airlines

Sat, 9 May - Sat, 16 May

18:40 - 15:00

ISP

LHR

39h 20m

2 stops

08:50 - 17:44

LHR

ISP

37h 54m

2 stops

£925Multiple Airlines

Tue, 5 May - Tue, 12 May

18:40 - 17:20

ISP

LHR

41h 40m

2 stops

07:40 - 17:44

LHR

ISP

39h 04m

2 stops

£951Multiple Airlines

Wed, 6 May - Wed, 13 May

17:25 - 21:45

ISP

LHR

47h 20m

2 stops

19:35 - 16:30

LHR

ISP

49h 55m

2 stops

£961Multiple Airlines

Mon, 4 May - Mon, 11 May

09:59 - 06:45

ISP

LHR

15h 46m

1 stop

09:40 - 19:45

LHR

ISP

15h 05m

1 stop

£1,014Multiple Airlines

Tue, 5 May - Tue, 12 May

09:59 - 06:45

ISP

LHR

15h 46m

1 stop

09:40 - 16:10

LHR

ISP

11h 30m

1 stop

£1,028Multiple Airlines

Sat, 9 May - Sat, 16 May

momondo Fare Finder

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

Cheapest return flight

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Tue 5/5

17:38-10:00

1 stop35h 22m

London Gatwick

Tue 12/5

13:00-10:05

2 stops26h 05m

£685

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Tue 5/5

17:38-10:00

1 stop35h 22m

London Gatwick

Tue 12/5

13:00-10:05

2 stops26h 05m

£698

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 9/5

11:00-10:00

1 stop18h 00m

London Gatwick

Sat 16/5

14:00-10:05

1 stop25h 05m

£756

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Mon 4/5

16:07-23:55

2 stops26h 48m

London Gatwick

Mon 11/5

14:00-11:00

1 stop26h 00m

£757

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 9/5

11:00-10:00

1 stop18h 00m

London Gatwick

Sat 16/5

10:55-16:10

2 stops34h 15m

£804

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Tue 5/5

18:40-15:00

2 stops39h 20m

London Heathrow

Tue 12/5

08:50-17:44

2 stops37h 54m

£925

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 6/5

18:40-17:20

2 stops41h 40m

London Heathrow

Wed 13/5

07:40-17:44

2 stops39h 04m

£951

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Mon 4/5

17:25-21:45

2 stops47h 20m

London Heathrow

Mon 11/5

19:35-16:30

2 stops49h 55m

£961

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Tue 5/5

09:59-06:45

1 stop15h 46m

London Heathrow

Tue 12/5

09:40-19:45

1 stop15h 05m

£1,014

Fastest return journey

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 9/5

09:59-06:45

1 stop15h 46m

London Heathrow

Sat 16/5

09:40-16:10

1 stop11h 30m

£1,028

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 40% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 14 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 00m
Direct flights	None

The fastest flight from Islip, New York to United Kingdom takes 14h 00m

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.

Search flight deals

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.