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.

£565 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.

09:45 - 20:45

ISP

LHR

30h 00m

2 stops

08:40 - 22:30

LHR

ISP

42h 50m

2 stops

£835JetBlue

Mon, 30 Mar - Mon, 6 Apr

11:50 - 14:40

ISP

LGW

21h 50m

2 stops

14:00 - 09:13

LGW

ISP

24h 13m

1 stop

£891Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

17:15 - 16:55

ISP

LHR

42h 40m

2 stops

19:35 - 16:30

LHR

ISP

49h 55m

2 stops

£974Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

09:59 - 06:45

ISP

LHR

15h 46m

1 stop

09:40 - 18:44

LHR

ISP

14h 04m

1 stop

£1,016Multiple Airlines

Fri, 3 Apr - Fri, 10 Apr

09:59 - 06:45

ISP

LHR

15h 46m

1 stop

09:40 - 18:44

LHR

ISP

14h 04m

1 stop

£1,019Multiple Airlines

Mon, 30 Mar - Mon, 6 Apr

17:15 - 11:40

ISP

EDI

37h 25m

2 stops

19:40 - 16:30

EDI

ISP

49h 50m

2 stops

£1,102Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

17:15 - 18:40

ISP

LHR

44h 25m

2 stops

19:10 - 16:29

LHR

ISP

50h 19m

2 stops

£1,111Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

09:59 - 18:35

ISP

LGW

27h 36m

3 stops

08:40 - 18:44

LGW

ISP

15h 04m

2 stops

£1,114Multiple Airlines

Mon, 30 Mar - Mon, 6 Apr

13:07 - 20:45

ISP

LHR

26h 38m

2 stops

11:55 - 12:10

LHR

ISP

53h 15m

2 stops

£1,140JetBlue

Fri, 3 Apr - Fri, 10 Apr

09:59 - 09:45

ISP

LGW

18h 46m

2 stops

08:40 - 18:44

LGW

ISP

15h 04m

2 stops

£1,176Multiple Airlines

Mon, 30 Mar - Mon, 6 Apr

JetBlue flights from Islip, New York to United Kingdom

Our best JetBlue deals on Islip, New York to United Kingdom flight tickets

JetBlue

30 Mar

ISP09:45Islip Long Island

30h 00m

2 stops

LHR20:45London Heathrow

6 Apr

LHR08:40London Heathrow

42h 50m

2 stops

ISP22:30Islip Long Island

£835

JetBlue

3 Apr

ISP13:07Islip Long Island

26h 38m

2 stops

LHR20:45London Heathrow

10 Apr

LHR11:55London Heathrow

53h 15m

2 stops

ISP12:10Islip Long Island

£1,140

JetBlue

3 Jul

ISP15:07Islip Long Island

24h 38m

2 stops

LHR20:45London Heathrow

10 Jul

LHR08:15London Heathrow

20h 02m

2 stops

ISP23:17Islip Long Island

£1,283

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 - LHR

ISPLHR

Islip Long Island

Mon 30/3

09:45-20:45

2 stops30h 00m

London Heathrow

Mon 6/4

08:40-22:30

2 stops42h 50m

£835

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 18/4

11:50-14:40

2 stops21h 50m

London Gatwick

Sat 25/4

14:00-09:13

1 stop24h 13m

£891

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Mon 20/4

17:15-16:55

2 stops42h 40m

London Heathrow

Mon 27/4

19:35-16:30

2 stops49h 55m

£974

Fastest return journey

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Fri 3/4

09:59-06:45

1 stop15h 46m

London Heathrow

Fri 10/4

09:40-18:44

1 stop14h 04m

£1,016

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Mon 30/3

09:59-06:45

1 stop15h 46m

London Heathrow

Mon 6/4

09:40-18:44

1 stop14h 04m

£1,019

IslipEdinburgh

ISP - EDI

ISPEDI

Islip Long Island

Mon 20/4

17:15-11:40

2 stops37h 25m

Edinburgh Turnhouse

Mon 27/4

19:40-16:30

2 stops49h 50m

£1,102

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 18/4

17:15-18:40

2 stops44h 25m

London Heathrow

Sat 25/4

19:10-16:29

2 stops50h 19m

£1,111

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Mon 30/3

09:59-18:35

3 stops27h 36m

London Gatwick

Mon 6/4

08:40-18:44

2 stops15h 04m

£1,114

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Fri 3/4

13:07-20:45

2 stops26h 38m

London Heathrow

Fri 10/4

11:55-12:10

2 stops53h 15m

£1,140

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Mon 30/3

09:59-09:45

2 stops18h 46m

London Gatwick

Mon 6/4

08:40-18:44

2 stops15h 04m

£1,176

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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 41% 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	16h 41m
Direct flights	None

The fastest flight from Islip, New York to United Kingdom takes 16h 41m

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.