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.

$1,081 Cheap Flights from Islip to the United Kingdom in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

10:19 am - 10:00 amISP-LGW

18h 41m1 stop

2:00 pm - 11:25 amLGW-ISP

26h 25m1 stop

$1,089Multiple Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

12:20 pm - 11:55 amISP-GLA

18h 35m2 stops

6:20 am - 1:09 pmGLA-ISP

35h 49m2 stops

$1,210Multiple Airlines

Find Deal

Thu, Dec 18 - Thu, Dec 25

2:25 pm - 10:55 amISP-LGW

15h 30m2 stops

2:00 pm - 11:25 amLGW-ISP

26h 25m1 stop

$1,590Multiple Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

12:40 pm - 7:50 amISP-EDI

14h 10m2 stops

12:00 pm - 11:04 amEDI-ISP

28h 04m2 stops

$1,903Multiple Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 23

12:40 pm - 9:15 amISP-LHR

15h 35m2 stops

9:20 am - 4:15 pmLHR-ISP

11h 55m1 stop

$2,607Multiple Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

9:59 am - 7:10 amISP-LHR

16h 11m2 stops

8:50 am - 7:45 pmLHR-ISP

15h 55m2 stops

$5,521Multiple Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

9:59 am - 7:10 amISP-LHR

16h 11m3 stops

8:50 am - 7:45 pmLHR-ISP

15h 55m2 stops

$5,560Multiple Airlines

Find Deal

Mon, Dec 15 - Mon, Dec 22

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

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Mon 12/15

10:19 am-10:00 am

1 stop18h 41m

London Gatwick

Mon 12/22

2:00 pm-11:25 am

1 stop26h 25m

$1,089

IslipGlasgow

ISP - GLA

ISPGLA

Islip Long Island

Thu 12/18

12:20 pm-11:55 am

2 stops18h 35m

Glasgow Intl

Thu 12/25

6:20 am-1:09 pm

2 stops35h 49m

$1,210

IslipLondon

ISP - LGW

ISPLGW

Islip Long Island

Mon 12/15

2:25 pm-10:55 am

2 stops15h 30m

London Gatwick

Mon 12/22

2:00 pm-11:25 am

1 stop26h 25m

$1,590

IslipEdinburgh

ISP - EDI

ISPEDI

Islip Long Island

Tue 12/16

12:40 pm-7:50 am

2 stops14h 10m

Edinburgh Turnhouse

Tue 12/23

12:00 pm-11:04 am

2 stops28h 04m

$1,903

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Mon 12/15

12:40 pm-9:15 am

2 stops15h 35m

London Heathrow

Mon 12/22

9:20 am-4:15 pm

1 stop11h 55m

$2,607

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Mon 12/15

9:59 am-7:10 am

2 stops16h 11m

London Heathrow

Mon 12/22

8:50 am-7:45 pm

2 stops15h 55m

$5,521

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Mon 12/15

9:59 am-7:10 am

3 stops16h 11m

London Heathrow

Mon 12/22

8:50 am-7:45 pm

2 stops15h 55m

$5,560

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 Delta 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 44% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 22 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

Direct flights	None

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 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.