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 were last updated today.

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 travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$994 Cheap Flights from Islip, New York to the United Kingdom in 2026

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

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:00 pm - 6:30 am

ISP

LHR

35h 30m

2 stops

8:15 am - 1:05 pm

LHR

ISP

57h 50m

2 stops

$1,341JetBlue

Fri, Oct 2 - Sun, Oct 11

3:02 pm - 2:40 pm

ISP

LGW

18h 38m

2 stops

2:00 pm - 9:33 am

LGW

ISP

24h 33m

1 stop

$1,436Multiple Airlines

Fri, Oct 2 - Sun, Oct 11

10:43 am - 10:00 am

ISP

LGW

18h 17m

1 stop

8:10 pm - 10:56 am

LGW

ISP

43h 46m

2 stops

$1,461Multiple Airlines

Sat, Jul 11 - Sat, Jul 18

5:29 pm - 9:35 am

ISP

LHR

11h 06m

1 stop

9:50 am - 6:35 pm

LHR

ISP

13h 45m

2 stops

$1,497Multiple Airlines

Fri, Oct 2 - Sun, Oct 11

10:43 am - 10:00 am

ISP

LGW

18h 17m

1 stop

9:15 pm - 10:56 am

LGW

ISP

42h 41m

2 stops

$1,505Multiple Airlines

Sat, Jul 11 - Sat, Jul 18

7:00 am - 7:10 am

ISP

LHR

19h 10m

1 stop

8:10 pm - 10:56 am

LHR

ISP

19h 46m

1 stop

$1,533Multiple Airlines

Fri, Oct 2 - Sun, Oct 11

1:45 pm - 12:40 pm

ISP

LHR

17h 55m

2 stops

7:40 am - 10:41 am

LHR

ISP

32h 01m

2 stops

$1,564Multiple Airlines

Sat, Jul 11 - Sat, Jul 18

1:45 pm - 8:55 pm

ISP

LHR

26h 10m

2 stops

8:50 am - 10:41 am

LHR

ISP

30h 51m

2 stops

$1,565Multiple Airlines

Sat, Jul 11 - Sat, Jul 18

1:45 pm - 1:55 pm

ISP

LHR

19h 10m

2 stops

6:10 pm - 10:41 am

LHR

ISP

45h 31m

2 stops

$1,578Multiple Airlines

Sat, Jul 11 - Sat, Jul 18

9:00 am - 11:55 am

ISP

LHR

21h 55m

2 stops

7:40 am - 12:30 pm

LHR

ISP

33h 50m

3 stops

$1,736Multiple Airlines

Sat, Jul 11 - Sat, Jul 18

JetBlue flights from Islip, New York to United Kingdom

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

JetBlue

Oct 2

ISP2:00 pmIslip Long Island

35h 30m

2 stops

LHR6:30 amLondon Heathrow

Oct 11

LHR8:15 amLondon Heathrow

57h 50m

2 stops

ISP1:05 pmIslip Long Island

$1,341

JetBlue

Jun 10

ISP12:25 pmIslip Long Island

37h 05m

2 stops

LHR6:30 amLondon Heathrow

Jun 19

LHR8:15 amLondon Heathrow

29h 59m

2 stops

ISP9:14 amIslip Long Island

$1,480

JetBlue

Jun 4

ISP2:35 pmIslip Long Island

34h 55m

2 stops

LHR6:30 amLondon Heathrow

Jun 11

LHR8:15 amLondon Heathrow

31h 25m

2 stops

ISP10:40 amIslip Long Island

$1,659

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 round-trip

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Fri 10/2

2:00 pm-6:30 am

2 stops35h 30m

London Heathrow

Sun 10/11

8:15 am-1:05 pm

2 stops57h 50m

$1,341

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Fri 10/2

3:02 pm-2:40 pm

2 stops18h 38m

London Gatwick

Sun 10/11

2:00 pm-9:33 am

1 stop24h 33m

$1,436

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 7/11

10:43 am-10:00 am

1 stop18h 17m

London Gatwick

Sat 7/18

8:10 pm-10:56 am

2 stops43h 46m

$1,461

Quickest round-trip

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Fri 10/2

5:29 pm-9:35 am

1 stop11h 06m

London Heathrow

Sun 10/11

9:50 am-6:35 pm

2 stops13h 45m

$1,497

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Sat 7/11

10:43 am-10:00 am

1 stop18h 17m

London Gatwick

Sat 7/18

9:15 pm-10:56 am

2 stops42h 41m

$1,505

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Fri 10/2

7:00 am-7:10 am

1 stop19h 10m

London Heathrow

Sun 10/11

8:10 pm-10:56 am

1 stop19h 46m

$1,533

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 7/11

1:45 pm-12:40 pm

2 stops17h 55m

London Heathrow

Sat 7/18

7:40 am-10:41 am

2 stops32h 01m

$1,564

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 7/11

1:45 pm-8:55 pm

2 stops26h 10m

London Heathrow

Sat 7/18

8:50 am-10:41 am

2 stops30h 51m

$1,565

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 7/11

1:45 pm-1:55 pm

2 stops19h 10m

London Heathrow

Sat 7/18

6:10 pm-10:41 am

2 stops45h 31m

$1,578

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sat 7/11

9:00 am-11:55 am

2 stops21h 55m

London Heathrow

Sat 7/18

7:40 am-12:30 pm

3 stops33h 50m

$1,736

Flights are sorted by cheapest round-trip flights first.

Sorted 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

What airlines fly to United Kingdom?

British Airways, United Airlines and Aer Lingus are the top three most popular airlines that fly to United Kingdom from Islip, New York according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 23 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 54m
Direct flights	None

The fastest flight from Islip, New York to United Kingdom takes 14h 54m

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 were last updated today.
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 travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek 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?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Islip.

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?

Yes. momondo can track prices for Islip to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.