Which airlines fly to London Heathrow Airport?

Virgin Atlantic, British Airways and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from Islip, New York according to our data. Virgin Atlantic is the first choice among our users, with 40% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 12 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Islip Long Island Airport to London Heathrow Airport?

Prices for flights from Islip Long Island Airport to London Heathrow Airport are refreshed on a daily basis.

How old do you have to be to fly from Islip Long Island Airport to London Heathrow Airport?

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 London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport 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.

£870 Cheap Flights from Islip, New York to London Heathrow Airport in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Islip, New York to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:00 - 09:30

ISP

LHR

22h 30m

2 stops

08:40 - 23:28

LHR

ISP

19h 48m

2 stops

£870JetBlue

Wed, 12 Aug - Wed, 19 Aug

13:35 - 20:45

ISP

LHR

26h 10m

2 stops

08:15 - 09:05

LHR

ISP

29h 50m

2 stops

£895JetBlue

Tue, 11 Aug - Sat, 22 Aug

16:58 - 06:30

ISP

LHR

32h 32m

2 stops

11:55 - 21:34

LHR

ISP

38h 39m

2 stops

£946JetBlue

Sun, 30 Aug - Sun, 6 Sep

10:05 - 21:00

ISP

LHR

29h 55m

2 stops

09:30 - 10:56

LHR

ISP

30h 26m

2 stops

£1,020Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

07:31 - 21:00

ISP

LHR

32h 29m

2 stops

08:30 - 10:56

LHR

ISP

31h 26m

3 stops

£1,024Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

14:16 - 21:00

ISP

LHR

25h 44m

2 stops

13:05 - 10:56

LHR

ISP

26h 51m

2 stops

£1,034Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

10:05 - 21:00

ISP

LHR

29h 55m

2 stops

08:30 - 10:56

LHR

ISP

31h 26m

3 stops

£1,043Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

07:31 - 06:30

ISP

LHR

17h 59m

3 stops

08:30 - 10:56

LHR

ISP

31h 26m

3 stops

£1,102Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

10:05 - 21:00

ISP

LHR

29h 55m

2 stops

07:40 - 12:30

LHR

ISP

33h 50m

3 stops

£1,103Multiple Airlines

Tue, 11 Aug - Sat, 22 Aug

09:05 - 08:05

ISP

LHR

18h 00m

2 stops

08:30 - 10:56

LHR

ISP

31h 26m

3 stops

£1,134Multiple Airlines

Sun, 30 Aug - Sun, 6 Sep

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JetBlue flights from Islip, New York to London Heathrow Airport

Our best JetBlue deals on Islip, New York to London Heathrow Airport flight tickets

JetBlue

12 Aug

ISP06:00Islip Long Island

22h 30m

2 stops

LHR09:30London Heathrow

19 Aug

LHR08:40London Heathrow

19h 48m

2 stops

ISP23:28Islip Long Island

£870

JetBlue

11 Aug

ISP13:35Islip Long Island

26h 10m

2 stops

LHR20:45London Heathrow

22 Aug

LHR08:15London Heathrow

29h 50m

2 stops

ISP09:05Islip Long Island

£895

JetBlue

30 Aug

ISP16:58Islip Long Island

32h 32m

2 stops

LHR06:30London Heathrow

6 Sept

LHR11:55London Heathrow

38h 39m

2 stops

ISP21:34Islip Long Island

£946

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 12/8

06:00-09:30

2 stops22h 30m

London Heathrow

Wed 19/8

08:40-23:28

2 stops19h 48m

£870

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Tue 11/8

13:35-20:45

2 stops26h 10m

London Heathrow

Sat 22/8

08:15-09:05

2 stops29h 50m

£895

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sun 30/8

16:58-06:30

2 stops32h 32m

London Heathrow

Sun 6/9

11:55-21:34

2 stops38h 39m

£946

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 19/8

10:05-21:00

2 stops29h 55m

London Heathrow

Wed 26/8

09:30-10:56

2 stops30h 26m

£1,020

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 19/8

07:31-21:00

2 stops32h 29m

London Heathrow

Wed 26/8

08:30-10:56

3 stops31h 26m

£1,024

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 19/8

14:16-21:00

2 stops25h 44m

London Heathrow

Wed 26/8

13:05-10:56

2 stops26h 51m

£1,034

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 19/8

10:05-21:00

2 stops29h 55m

London Heathrow

Wed 26/8

08:30-10:56

3 stops31h 26m

£1,043

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Wed 19/8

07:31-06:30

3 stops17h 59m

London Heathrow

Wed 26/8

08:30-10:56

3 stops31h 26m

£1,102

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Tue 11/8

10:05-21:00

2 stops29h 55m

London Heathrow

Sat 22/8

07:40-12:30

3 stops33h 50m

£1,103

IslipLondon

ISP - LHR

ISPLHR

Islip Long Island

Sun 30/8

09:05-08:05

2 stops18h 00m

London Heathrow

Sun 6/9

08:30-10:56

3 stops31h 26m

£1,134

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to London Heathrow Airport

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

Prices

Airlines

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Islip, New York is on a Monday. momondo users have found tickets for Monday departures for as low as £405. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £498.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Islip, New York to London Heathrow Airport in the afternoon for as low as £434. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £473 on average. Flights to London Heathrow Airport from Islip, New York in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from Islip, New York to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Islip, New York to London Heathrow Airport (ISP to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to London Heathrow Airport

Fastest flight time	32h 32m
Direct flights	None

The fastest flight from Islip, New York to London Heathrow Airport takes 32h 32m

There are no direct flights from Islip, New York to London Heathrow Airport. There are no popular flight routes from Islip, New York to London Heathrow Airport.

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Frequently asked questions about flying from Islip, New York to London Heathrow Airport

How far is Islip Long Island to London Heathrow by plane?
London Heathrow is 3412.8 mi away from Islip Long Island. 32h 32m is a normal flight duration for this route.
When did momondo last update prices for flights from Islip Long Island Airport to London Heathrow Airport?
Prices for flights from Islip Long Island Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Islip Long Island Airport to London Heathrow Airport?
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 London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport 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.

Eastbourne

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Gatwick

Milton Keynes

Luton

Stratford-upon-Avon

Southend-on-Sea

Slough

Northampton

Ipswich

Maidstone

Swindon

Folkestone

Ilford

Canterbury

Poole

Guildford

Hastings

Hayes

Chichester

Why use momondo?

Why should I use momondo to find a flight deal from Islip to London?

It is quick and easy to find Islip to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Islip to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Islip to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Islip to London?

momondo helps you find the best flight between Islip and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Islip to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Islip and alert you when they change.