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.

£370 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.

16:20 - 14:40ISP Islip Long Island-LGW London Gatwick

17h 20m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

36h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£727Multiple Airlines

Tue, 6 Oct - Tue, 13 Oct

16:05 - 10:55ISP Islip Long Island-LGW London Gatwick

13h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl

11:55 - 23:30LGW London Gatwick-ISP Islip Long Island

16h 35m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£732Multiple Airlines

Tue, 1 Dec - Fri, 11 Dec

16:05 - 19:30ISP Islip Long Island-LHR London Heathrow

22h 25m2 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

Tue, 3 Nov - Tue, 10 Nov

16:20 - 14:40ISP Islip Long Island-LGW London Gatwick

17h 20m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

36h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£733Multiple Airlines

Tue, 6 Oct - Tue, 13 Oct

16:20 - 11:55ISP Islip Long Island-LHR London Heathrow

14h 35m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

30h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£734Multiple Airlines

Tue, 6 Oct - Tue, 13 Oct

16:20 - 14:40ISP Islip Long Island-LGW London Gatwick

17h 20m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

36h 00m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£734Multiple Airlines

Tue, 6 Oct - Tue, 13 Oct

11:00 - 11:55ISP Islip Long Island-LHR London Heathrow

19h 55m2 stops Baltimore/Washington Reykjavik Keflavik Intl

12:15 - 23:40LHR London Heathrow-ISP Islip Long Island

15h 25m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£770Multiple Airlines

Fri, 23 Oct - Fri, 30 Oct

11:20 - 10:50ISP Islip Long Island-LHR London Heathrow

18h 30m2 stops Baltimore/Washington Reykjavik Keflavik Intl

20:35 - 21:30LHR London Heathrow-ISP Islip Long Island

29h 55m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£771Multiple Airlines

Thu, 14 Jan - Mon, 18 Jan

12:30 - 10:50ISP Islip Long Island-LHR London Heathrow

17h 20m2 stops Baltimore/Washington Reykjavik Keflavik Intl

12:15 - 23:30LHR London Heathrow-ISP Islip Long Island

16h 15m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£772Multiple Airlines

Tue, 1 Dec - Fri, 11 Dec

15:10 - 11:55ISP Islip Long Island-LHR London Heathrow

39h 45m2 stops Baltimore/Washington Reykjavik Keflavik Intl

20:35 - 23:40LHR London Heathrow-ISP Islip Long Island

31h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£772Multiple Airlines

Thu, 22 Oct - Thu, 29 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

10:55 - 14:40ISP Islip Long Island-LGW London Gatwick

22h 45m2 stops Baltimore/Washington Reykjavik Keflavik Intl

11:55 - 23:30LGW London Gatwick-ISP Islip Long Island

16h 35m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£837Multiple Airlines

Tue, 15 Sep - Mon, 2 Nov

16:05 - 20:20ISP Islip Long Island-LHR London Heathrow

23h 15m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

14h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,305Multiple Airlines

Fri, 11 Sep - Fri, 18 Sep

16:05 - 20:20ISP Islip Long Island-LHR London Heathrow

23h 15m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

14h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,337Multiple Airlines

Fri, 11 Sep - Fri, 18 Sep

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

14h 50m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

29h 45m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,337Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

12:35 - 11:55ISP Islip Long Island-LHR London Heathrow

18h 20m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

14h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,381Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

16:05 - 20:20ISP Islip Long Island-LHR London Heathrow

23h 15m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

29h 45m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,382Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

16:05 - 20:20ISP Islip Long Island-LHR London Heathrow

23h 15m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

29h 45m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,425Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

16:05 - 20:20ISP Islip Long Island-LHR London Heathrow

23h 15m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

14h 05m2 stops Reykjavik Keflavik Intl Baltimore/Washington

£1,648Multiple Airlines

Fri, 11 Sep - Fri, 18 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

Tue 6/10

16:20-14:40

2 stops17h 20m

London Gatwick

Tue 13/10

15:40-22:40

2 stops36h 00m

£727

Fastest return journey

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Tue 1/12

16:05-10:55

2 stops13h 50m

London Gatwick

Fri 11/12

11:55-23:30

2 stops16h 35m

£732

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Tue 3/11

16:05-19:30

2 stops22h 25m

London Heathrow

Tue 10/11

12:15-21:40

2 stops14h 25m

£733

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Tue 6/10

16:20-14:40

2 stops17h 20m

London Gatwick

Tue 13/10

15:40-22:40

2 stops36h 00m

£733

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Tue 6/10

16:20-11:55

2 stops14h 35m

London Heathrow

Tue 13/10

21:25-22:40

2 stops30h 15m

£734

IslipLondon

ISP Islip Long Island - LGW London Gatwick

ISPLGW

Islip Long Island

Tue 6/10

16:20-14:40

2 stops17h 20m

London Gatwick

Tue 13/10

15:40-22:40

2 stops36h 00m

£734

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Fri 23/10

11:00-11:55

2 stops19h 55m

London Heathrow

Fri 30/10

12:15-23:40

2 stops15h 25m

£770

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Thu 14/1

11:20-10:50

2 stops18h 30m

London Heathrow

Mon 18/1

20:35-21:30

2 stops29h 55m

£771

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Tue 1/12

12:30-10:50

2 stops17h 20m

London Heathrow

Fri 11/12

12:15-23:30

2 stops16h 15m

£772

IslipLondon

ISP Islip Long Island - LHR London Heathrow

ISPLHR

Islip Long Island

Thu 22/10

15:10-11:55

2 stops39h 45m

London Heathrow

Thu 29/10

20:35-23:40

2 stops31h 05m

£772

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 35% 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

Best price found	£370
Fastest flight time	15h 35m
Direct flights	None

The best one-way flight to United Kingdom from Islip, New York in the past 72 hours is £370. The best return flight deal from Islip, New York to United Kingdom found on momondo in the last 72 hours is £727.

The fastest flight from Islip, New York to United Kingdom takes 15h 35m

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.