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Flights to Islip Long Island

£723 Cheap flights to Islip, New York

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Islip, New York departing on 8/9. 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

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

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
11:55 - 23:22
LHR
-
ISP
40h 27m
2 stops
JetBlue Logo
07:00 - 20:45
ISP
-
LHR
32h 45m
2 stops
£723JetBlue
Tue, 8 Sep - Tue, 15 Sep
JetBlue Logo
11:55 - 23:22
LHR
-
ISP
40h 27m
2 stops
JetBlue Logo
07:00 - 20:45
ISP
-
LHR
32h 45m
2 stops
£764JetBlue
Tue, 8 Sep - Tue, 15 Sep
JetBlue Logo
12:10 - 12:40
EDI
-
ISP
29h 30m
2 stops
JetBlue Logo
07:00 - 09:20
ISP
-
EDI
21h 20m
2 stops
£781JetBlue
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
10:50 - 16:58
LHR
-
ISP
35h 08m
2 stops
Multiple Airlines Logo
10:05 - 06:45
ISP
-
LHR
15h 40m
1 stop
£858Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
08:15 - 09:53
EDI
-
ISP
30h 38m
2 stops
Multiple Airlines Logo
14:16 - 07:05
ISP
-
EDI
11h 49m
1 stop
£1,030Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
09:15 - 10:56
EDI
-
ISP
30h 41m
2 stops
Multiple Airlines Logo
14:16 - 21:35
ISP
-
EDI
26h 19m
3 stops
£1,101Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
09:00 - 10:56
EDI
-
ISP
30h 56m
3 stops
Multiple Airlines Logo
14:16 - 21:35
ISP
-
EDI
26h 19m
3 stops
£1,151Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
09:00 - 20:15
MAN
-
ISP
16h 15m
2 stops
Multiple Airlines Logo
17:43 - 09:40
ISP
-
MAN
34h 57m
1 stop
£1,178Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
09:40 - 17:41
LHR
-
ISP
13h 01m
1 stop
Multiple Airlines Logo
14:16 - 06:45
ISP
-
LHR
11h 29m
1 stop
£1,689Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
08:40 - 17:41
LHR
-
ISP
14h 01m
1 stop
Multiple Airlines Logo
10:05 - 06:30
ISP
-
LHR
15h 25m
1 stop
£1,795Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep

momondo Fare Finder

 
Locate flights to Islip Long Island that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 26 July 2026.
Use the filters below to find and compare flights to Islip, New York that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Tue 8/9

11:55-23:22

2 stops40h 27m

Islip Long Island

Tue 15/9

07:00-20:45

2 stops32h 45m

£723

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Tue 8/9

11:55-23:22

2 stops40h 27m

Islip Long Island

Tue 15/9

07:00-20:45

2 stops32h 45m

£764

EdinburghIslip

EDI - ISP

EDIISP

Edinburgh Turnhouse

Mon 7/9

12:10-12:40

2 stops29h 30m

Islip Long Island

Mon 14/9

07:00-09:20

2 stops21h 20m

£781

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Tue 8/9

10:50-16:58

2 stops35h 08m

Islip Long Island

Tue 15/9

10:05-06:45

1 stop15h 40m

£858

EdinburghIslip

EDI - ISP

EDIISP

Edinburgh Turnhouse

Mon 7/9

08:15-09:53

2 stops30h 38m

Islip Long Island

Mon 14/9

14:16-07:05

1 stop11h 49m

£1,030

EdinburghIslip

EDI - ISP

EDIISP

Edinburgh Turnhouse

Mon 7/9

09:15-10:56

2 stops30h 41m

Islip Long Island

Mon 14/9

14:16-21:35

3 stops26h 19m

£1,101

EdinburghIslip

EDI - ISP

EDIISP

Edinburgh Turnhouse

Mon 7/9

09:00-10:56

3 stops30h 56m

Islip Long Island

Mon 14/9

14:16-21:35

3 stops26h 19m

£1,151

ManchesterIslip

MAN - ISP

MANISP

Manchester

Tue 8/9

09:00-20:15

2 stops16h 15m

Islip Long Island

Tue 15/9

17:43-09:40

1 stop34h 57m

£1,178
Fastest return journey

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Tue 8/9

09:40-17:41

1 stop13h 01m

Islip Long Island

Tue 15/9

14:16-06:45

1 stop11h 29m

£1,689

LondonIslip

LHR - ISP

LHRISP

London Heathrow

Tue 8/9

08:40-17:41

1 stop14h 01m

Islip Long Island

Tue 15/9

10:05-06:30

1 stop15h 25m

£1,795

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

See travel insights to Islip, New York from

Islip, New York flights insights and trends

Explore insights for your Islip, New York flight to craft the best travel plan

How long does it take to fly to Islip, New York?

The average flight duration from United Kingdom to Islip, New York depends on which airport you fly into and out of. Flying from London Heathrow to New York John F Kennedy Intl is 7h 45m on average, while flying from Manchester to New York John F Kennedy Intl is 7h 45m on average. New York John F Kennedy Intl is the most popular airport in Islip, New York.

Cheapest flights to Islip Long Island

Find the cheapest flights to Islip Long Island from your nearest city or airport

Cheap Islip, New York flight deals and tips

Summary info about Islip, New York flight prices, duration and airlines

Best One-Way Price

£1,380

Best Round-Trip Price

£723

Fastest flight time

31h 15m
The best one-way flight price to Islip from United Kingdom in the last 5 days is £1,380 (London Heathrow to Islip Long Island).
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The best return flight price to Islip from United Kingdom in the last 5 days is £723 (London Heathrow to Islip Long Island).
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The fastest flight to Islip from United Kingdom takes 31h 15m (London Heathrow to Islip Long Island).
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Frequently asked questions about flying to Islip, New York

Is there an alternative airport near Islip, New York?

Those flying to Islip, New York could potentially find better pricing at Islip Long Island Airport (7 mi from Islip, New York city centre), Farmingdale Republic Field Airport (11 mi from Islip, New York city centre), New York LaGuardia Airport (35 mi from Islip, New York city centre), Newark Airport (51 mi from Islip, New York city centre) or New Windsor Stewart Airport (71 mi from Islip, New York city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Islip, New York?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Islip, New York is New Windsor Stewart Airport where the average price is £74. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Islip, New York?

£88 is the cheapest deal found on momondo in the last two weeks for a flight to Islip, New York. This flight is from Orlando and is 76% cheaper than most flights to Islip, New York. To find the cheapest price to Islip, New York from your area, use momondo’s Airport-to-Airport Pricing Tool.

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

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

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Islip Long Island Airport.

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

The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Islip, New York?

Book flights to Islip, New York if you plan to visit one of these locations
Riverhead
Montauk
Southampton

Why use momondo?

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

It is quick and easy to find flights to Islip 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 to Islip with flexible booking policies on momondo?

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

How can momondo help me find flights to Islip?

Once all potential Islip flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

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

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

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Find better results for your trip to Islip, New York

Popular Flights to Islip, New York

Popular routes according to searches in the past day on momondo
Edinburgh Turnhouse to Islip Long Island Flightsfrom £1,041
Manchester to Islip Long Island Flightsfrom £1,700
London to Islip Long Island Flightsfrom £1,018