Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Heathrow Airport to New York from $609

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to New York departing on 9/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from London Heathrow Airport to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
8:15 am - 3:36 pm
LHR
-
ISP
36h 21m
2 stops
JetBlue Logo
4:26 pm - 6:30 am
ISP
-
LHR
33h 04m
2 stops
$1,009JetBlue
Tue, Sep 15 - Tue, Sep 22
JetBlue Logo
8:15 am - 11:22 pm
LHR
-
ISP
20h 07m
2 stops
JetBlue Logo
7:00 am - 8:45 pm
ISP
-
LHR
32h 45m
2 stops
$1,097JetBlue
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
8:40 am - 10:56 am
LHR
-
ISP
31h 16m
1 stop
Multiple Airlines Logo
7:05 am - 6:30 am
ISP
-
LHR
18h 25m
1 stop
$1,188Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
8:15 am - 8:59 pm
LHR
-
ISP
17h 44m
2 stops
Multiple Airlines Logo
7:05 am - 6:30 am
ISP
-
LHR
18h 25m
1 stop
$1,225Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
8:15 am - 8:59 pm
LHR
-
ISP
17h 44m
2 stops
Multiple Airlines Logo
9:05 am - 9:30 am
ISP
-
LHR
19h 25m
2 stops
$1,281Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
8:30 am - 10:56 am
LHR
-
ISP
31h 26m
3 stops
Multiple Airlines Logo
7:05 am - 11:50 am
ISP
-
LHR
23h 45m
2 stops
$1,328Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
7:30 pm - 5:41 pm
LHR
-
ISP
27h 11m
2 stops
Multiple Airlines Logo
6:48 pm - 9:50 am
ISP
-
LHR
34h 02m
1 stop
$1,403Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:30 am - 10:56 am
LHR
-
ISP
31h 26m
3 stops
Multiple Airlines Logo
7:05 am - 9:35 am
ISP
-
LHR
21h 30m
3 stops
$1,419Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
8:50 pm - 8:59 pm
LHR
-
ISP
29h 09m
3 stops
Multiple Airlines Logo
9:05 am - 11:55 am
ISP
-
LHR
21h 50m
2 stops
$1,448Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
9:30 am - 10:30 am
LHR
-
ISP
30h 00m
2 stops
Multiple Airlines Logo
9:05 am - 9:15 am
ISP
-
LHR
19h 10m
1 stop
$1,515Multiple Airlines
Sat, Sep 12 - Sat, Sep 19

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

JetBlue flights from London Heathrow Airport to Islip, New York

Our best JetBlue deals on London Heathrow Airport to Islip, New York flight tickets
JetBlue
Sep 15
LHR8:15 amLondon Heathrow
36h 21m
2 stops
ISP3:36 pmIslip Long Island
Sep 22
ISP4:26 pmIslip Long Island
33h 04m
2 stops
LHR6:30 amLondon Heathrow
$1,009
JetBlue
Sep 12
LHR8:15 amLondon Heathrow
20h 07m
2 stops
ISP11:22 pmIslip Long Island
Sep 19
ISP7:00 amIslip Long Island
32h 45m
2 stops
LHR8:45 pmLondon Heathrow
$1,097

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 2, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Tue 9/15

8:15 am-3:36 pm

2 stops36h 21m

Islip Long Island

Tue 9/22

4:26 pm-6:30 am

2 stops33h 04m

$1,009

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sat 9/12

8:15 am-11:22 pm

2 stops20h 07m

Islip Long Island

Sat 9/19

7:00 am-8:45 pm

2 stops32h 45m

$1,097

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sun 9/13

8:40 am-10:56 am

1 stop31h 16m

Islip Long Island

Sun 9/20

7:05 am-6:30 am

1 stop18h 25m

$1,188
Quickest round-trip

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sun 9/13

8:15 am-8:59 pm

2 stops17h 44m

Islip Long Island

Sun 9/20

7:05 am-6:30 am

1 stop18h 25m

$1,225

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sun 9/13

8:15 am-8:59 pm

2 stops17h 44m

Islip Long Island

Sun 9/20

9:05 am-9:30 am

2 stops19h 25m

$1,281

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sun 9/13

8:30 am-10:56 am

3 stops31h 26m

Islip Long Island

Sun 9/20

7:05 am-11:50 am

2 stops23h 45m

$1,328

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Mon 9/14

7:30 pm-5:41 pm

2 stops27h 11m

Islip Long Island

Mon 9/21

6:48 pm-9:50 am

1 stop34h 02m

$1,403

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sun 9/13

8:30 am-10:56 am

3 stops31h 26m

Islip Long Island

Sun 9/20

7:05 am-9:35 am

3 stops21h 30m

$1,419

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sat 9/12

8:50 pm-8:59 pm

3 stops29h 09m

Islip Long Island

Sat 9/19

9:05 am-11:55 am

2 stops21h 50m

$1,448

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Sat 9/12

9:30 am-10:30 am

2 stops30h 00m

Islip Long Island

Sat 9/19

9:05 am-9:15 am

1 stop19h 10m

$1,515

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

See travel insights to New York from

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

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 Islip, New York?

British Airways, Virgin Atlantic and Lufthansa are the top three most popular airlines that fly to Islip, New York from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 16 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

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

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

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

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

Fastest flight time

20h 07m

Direct flights

None
The fastest flight from London Heathrow Airport to Islip, New York takes 20h 07m
There are no direct flights from London Heathrow Airport to Islip, New York. There are no popular flight routes from London Heathrow Airport to Islip, New York.
Search flight deals

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

  • How far is London Heathrow to Islip Long Island by plane?

    A flight from London Heathrow to Islip Long Island will travel around 3412.8 mi. In terms of flight time, this usually takes a little over 20h 07m.

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

    Prices for flights from London Heathrow Airport to Islip Long Island Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Southampton
Sag Harbor
Amagansett

Why use momondo?

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

It is quick and easy to find London to Islip 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 Islip that suits you.

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

momondo does allow users to show only those flights to Islip from London which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Islip.

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

Of course. momondo tracks the price of London to Islip flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 9/1
Tue 9/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States