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.

£561 Cheap Flights from Islip, New York to the United Kingdom in 2026

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

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:52 - 10:00ISP Islip Long Island-LGW London Gatwick

17h 08m2 stops Raleigh-Durham Orlando

14:00 - 16:58LGW London Gatwick-ISP Islip Long Island

31h 58m1 stop Orlando

£632Multiple Airlines

Mon, 28 Sep - Mon, 5 Oct

12:00 - 10:00ISP Islip Long Island-LGW London Gatwick

41h 00m2 stops Raleigh-Durham Orlando

14:00 - 16:58LGW London Gatwick-ISP Islip Long Island

31h 58m1 stop Orlando

£646Multiple Airlines

Sat, 26 Sep - Sat, 3 Oct

17:43 - 10:00ISP Islip Long Island-LGW London Gatwick

35h 17m1 stop Orlando

14:00 - 16:58LGW London Gatwick-ISP Islip Long Island

31h 58m1 stop Orlando

£668Multiple Airlines

Thu, 10 Sep - Wed, 16 Sep

17:43 - 10:00ISP Islip Long Island-LGW London Gatwick

35h 17m1 stop Orlando

14:00 - 16:58LGW London Gatwick-ISP Islip Long Island

31h 58m1 stop Orlando

£683Multiple Airlines

Sat, 26 Sep - Sat, 3 Oct

17:43 - 07:55ISP Islip Long Island-LGW London Gatwick

33h 12m2 stops Orlando Ottawa

14:00 - 16:58LGW London Gatwick-ISP Islip Long Island

31h 58m1 stop Orlando

£710Multiple Airlines

Thu, 10 Sep - Wed, 16 Sep

12:25 - 19:30ISP Islip Long Island-LHR London Heathrow

26h 05m2 stops Baltimore/Washington Reykjavik Keflavik Intl

12:15 - 21:40LHR London Heathrow-ISP Islip Long Island

14h 25m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£733Multiple Airlines

Sun, 8 Nov - Tue, 17 Nov

12:30 - 19:30ISP Islip Long Island-LHR London Heathrow

26h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl

20:35 - 21:40LHR London Heathrow-ISP Islip Long Island

30h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£734Multiple Airlines

Wed, 4 Nov - Mon, 9 Nov

12:50 - 11:55ISP Islip Long Island-LHR London Heathrow

18h 05m2 stops Baltimore/Washington Reykjavik Keflavik Intl

20:35 - 23:35LHR London Heathrow-ISP Islip Long Island

31h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£734Multiple Airlines

Wed, 21 Oct - Thu, 29 Oct

15:20 - 11:45ISP Islip Long Island-LGW London Gatwick

15h 25m2 stops Baltimore/Washington Reykjavik Keflavik Intl

15:40 - 22:10LGW London Gatwick-ISP Islip Long Island

35h 30m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£744Multiple Airlines

Wed, 9 Sep - Thu, 17 Sep

15:20 - 20:20ISP Islip Long Island-LHR London Heathrow

24h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl

21:25 - 22:10LHR London Heathrow-ISP Islip Long Island

29h 45m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£745Multiple Airlines

Wed, 9 Sep - Thu, 17 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:55 - 11:55ISP Islip Long Island-LHR London Heathrow

18h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl

21:25 - 22:40LHR London Heathrow-ISP Islip Long Island

30h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,554Multiple Airlines

Wed, 19 Aug - Sat, 12 Sep

15:20 - 14:40ISP Islip Long Island-LGW London Gatwick

18h 20m2 stops Baltimore/Washington Reykjavik Keflavik Intl

15:40 - 22:10LGW London Gatwick-ISP Islip Long Island

35h 30m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,596Multiple Airlines

Wed, 19 Aug - Thu, 3 Sep

15:20 - 11:55ISP Islip Long Island-LHR London Heathrow

15h 35m2 stops Baltimore/Washington Reykjavik Keflavik Intl

21:25 - 22:10LHR London Heathrow-ISP Islip Long Island

29h 45m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,596Multiple Airlines

Wed, 19 Aug - Thu, 3 Sep

16:05 - 11:55ISP Islip Long Island-LHR London Heathrow

14h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl

13:05 - 22:05LHR London Heathrow-ISP Islip Long Island

14h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,799Multiple Airlines

Mon, 17 Aug - Mon, 24 Aug

16:05 - 11:55ISP Islip Long Island-LHR London Heathrow

14h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl

13:05 - 22:05LHR London Heathrow-ISP Islip Long Island

14h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,800Multiple Airlines

Mon, 17 Aug - Mon, 24 Aug

16:05 - 11:55ISP Islip Long Island-LHR London Heathrow

14h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl

13:05 - 22:05LHR London Heathrow-ISP Islip Long Island

14h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,807Multiple Airlines

Mon, 17 Aug - Mon, 24 Aug

16:05 - 11:55ISP Islip Long Island-LHR London Heathrow

14h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl

21:25 - 22:05LHR London Heathrow-ISP Islip Long Island

29h 40m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,808Multiple Airlines

Mon, 17 Aug - Sun, 23 Aug

10:20 - 11:55ISP Islip Long Island-LHR London Heathrow

20h 35m2 stops Baltimore/Washington Reykjavik Keflavik Intl

13:05 - 22:05LHR London Heathrow-ISP Islip Long Island

14h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,904Multiple Airlines

Mon, 17 Aug - Mon, 24 Aug

10:20 - 11:45ISP Islip Long Island-LGW London Gatwick

20h 25m2 stops Baltimore/Washington Reykjavik Keflavik Intl

15:40 - 22:05LGW London Gatwick-ISP Islip Long Island

35h 25m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£2,029Multiple Airlines

Mon, 17 Aug - Sun, 23 Aug

10:55 - 11:55ISP Islip Long Island-LHR London Heathrow

20h 00m2 stops Baltimore/Washington Reykjavik Keflavik Intl

13:05 - 22:10LHR London Heathrow-ISP Islip Long Island

14h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£2,457Multiple Airlines

Wed, 19 Aug - Mon, 7 Sep

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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 Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Mon 28/9

11:52-10:00

2 stops17h 08m

London Gatwick

Mon 5/10

14:00-16:58

1 stop31h 58m

£632

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Sat 26/9

12:00-10:00

2 stops41h 00m

London Gatwick

Sat 3/10

14:00-16:58

1 stop31h 58m

£646

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Thu 10/9

17:43-10:00

1 stop35h 17m

London Gatwick

Wed 16/9

14:00-16:58

1 stop31h 58m

£668

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Sat 26/9

17:43-10:00

1 stop35h 17m

London Gatwick

Sat 3/10

14:00-16:58

1 stop31h 58m

£683

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Thu 10/9

17:43-07:55

2 stops33h 12m

London Gatwick

Wed 16/9

14:00-16:58

1 stop31h 58m

£710

Fastest return journey

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Sun 8/11

12:25-19:30

2 stops26h 05m

London Heathrow

Tue 17/11

12:15-21:40

2 stops14h 25m

£733

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Wed 4/11

12:30-19:30

2 stops26h 00m

London Heathrow

Mon 9/11

20:35-21:40

2 stops30h 05m

£734

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Wed 21/10

12:50-11:55

2 stops18h 05m

London Heathrow

Thu 29/10

20:35-23:35

2 stops31h 00m

£734

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Wed 9/9

15:20-11:45

2 stops15h 25m

London Gatwick

Thu 17/9

15:40-22:10

2 stops35h 30m

£744

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Wed 9/9

15:20-20:20

2 stops24h 00m

London Heathrow

Thu 17/9

21:25-22:10

2 stops29h 45m

£745

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 36% 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	12h 49m
Direct flights	None

The fastest flight from Islip, New York to United Kingdom takes 12h 49m

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

Frequently asked questions about flying from Islip, New York to the 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.