Which layover airport has the shortest travel time from New York John F Kennedy Intl Airport to London Heathrow Airport?

Flights connecting via Shannon (SNN) have the shortest average one-way travel time: 9h 37m.

What airlines fly to London Heathrow Airport?

British Airways, Virgin Atlantic and Delta are the top three most popular airlines that fly to London Heathrow Airport from New York John F Kennedy Intl Airport according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 19 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

How often are flights from New York to London delayed?

Historically, on average around 14% of flights between New York and London have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

What is the most punctual flight time for New York to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Which airport is the most popular layover for flights between New York John F Kennedy Intl Airport and London Heathrow Airport?

Reykjavik (KEF) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from New York John F Kennedy Intl Airport to London Heathrow Airport?

Brussels (BRU) has the shortest average layover time for this route: 1h 30m.

Which airline has the best punctuality record on New York to London flights?

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

What is the cheapest airline that flies from New York John F Kennedy Intl to London Heathrow?

Air Canada, Icelandair, and Virgin Atlantic are the most popular carriers operating from New York John F Kennedy Intl to London Heathrow

Which layover airport offers the lowest fares from New York John F Kennedy Intl Airport to London Heathrow Airport?

Flights via Shannon (SNN) offer the lowest average round-trip price of $490.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

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

The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$151 Cheap Flights from New York John F Kennedy Intl Airport to London Heathrow Airport in 2025/26

Q: How many flights depart from New York John F Kennedy Intl Airport to London Heathrow Airport on average per day?

As of November 2025, 94 flights take off from New York John F Kennedy Intl Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 9:00PM, with 84% of daily flights taking off in the evening.

Q: How many flights depart from New York John F Kennedy Intl Airport to London Heathrow Airport on average per week?

664 flights are operational weekly from New York John F Kennedy Intl Airport to London Heathrow Airport as of November 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

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7:01 pm - 6:55 amJFK-LHR

6h 54mnonstop

8:00 pm - 10:55 pmLHR-JFK

7h 55mnonstop

$488Virgin Atlantic

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vie., nov. 28 - sáb., feb. 28

10:05 am - 7:10 amJFK-LHR

16h 05m1 stop

6:00 am - 2:15 pmLHR-JFK

13h 15m1 stop

$489Multiple Airlines

Find Deal

jue., ene. 8 - sáb., ene. 17

9:50 pm - 9:40 amJFK-LHR

6h 50mnonstop

11:25 am - 7:15 pmLHR-JFK

12h 50m1 stop

$490Iberia

Find Deal

sáb., ene. 24 - sáb., ene. 31

9:35 pm - 9:35 amJFK-LHR

7h 00mnonstop

10:20 am - 7:05 pmLHR-JFK

13h 45m1 stop

$491Finnair

Find Deal

sáb., ene. 10 - sáb., ene. 17

9:50 pm - 9:40 amJFK-LHR

6h 50mnonstop

11:25 am - 7:15 pmLHR-JFK

12h 50m1 stop

$492Iberia

Find Deal

mié., dic. 3 - jue., dic. 11

9:00 pm - 11:25 amJFK-LHR

9h 25m1 stop

12:10 pm - 7:29 pmLHR-JFK

12h 19m1 stop

$493Aer Lingus

Find Deal

mié., ene. 7 - jue., ene. 22

9:00 pm - 1:25 pmJFK-LHR

11h 25m1 stop

7:50 am - 1:55 pmLHR-JFK

11h 05m1 stop

$494Aer Lingus

Find Deal

jue., ene. 8 - lun., ene. 12

10:05 am - 7:10 amJFK-LHR

16h 05m1 stop

12:05 pm - 8:58 pmLHR-JFK

37h 53m2 stops

$495Multiple Airlines

Find Deal

lun., dic. 1 - vie., dic. 5

6:00 pm - 6:20 amJFK-LHR

7h 20mnonstop

6:20 am - 4:00 pmLHR-JFK

14h 40m1 stop

$496Virgin Atlantic

Find Deal

vie., dic. 5 - dom., dic. 7

2:30 pm - 7:00 amJFK-LHR

11h 30m1 stop

6:15 am - 1:15 pmLHR-JFK

12h 00m1 stop

$497American Airlines

Find Deal

mié., dic. 3 - mié., dic. 10

JetBlue flights from New York John F Kennedy Intl Airport to London Heathrow Airport

Our best JetBlue deals on New York John F Kennedy Intl Airport to London Heathrow Airport flight tickets

JetBlue

Dec 3

JFK9:40 amNew York John F Kennedy Intl

7h 00m

LHR9:40 pmLondon Heathrow

Dec 6

LHR8:05 amLondon Heathrow

8h 11m

JFK11:16 amNew York John F Kennedy Intl

$501

Find similar

JetBlue

Nov 18

JFK9:40 amNew York John F Kennedy Intl

7h 00m

LHR9:40 pmLondon Heathrow

Nov 25

LHR7:25 amLondon Heathrow

8h 04m

JFK10:29 amNew York John F Kennedy Intl

$502

Find similar

JetBlue

Nov 26

JFK4:30 pmNew York John F Kennedy Intl

9h 25m

1 stop

LHR6:55 amLondon Heathrow

Dec 3

LHR7:25 amLondon Heathrow

8h 12m

JFK10:37 amNew York John F Kennedy Intl

$507

Find similar

Finnair flights from New York John F Kennedy Intl Airport to London Heathrow Airport

Our best Finnair deals on New York John F Kennedy Intl Airport to London Heathrow Airport flight tickets

Finnair

Jan 24

JFK6:25 pmNew York John F Kennedy Intl

6h 55m

LHR6:20 amLondon Heathrow

Jan 31

LHR10:20 amLondon Heathrow

13h 45m

1 stop

JFK7:05 pmNew York John F Kennedy Intl

$490

Find similar

Finnair

Jan 10

JFK9:35 pmNew York John F Kennedy Intl

7h 00m

LHR9:35 amLondon Heathrow

Jan 17

LHR10:20 amLondon Heathrow

13h 45m

1 stop

JFK7:05 pmNew York John F Kennedy Intl

$491

Find similar

Finnair

Apr 2

JFK6:10 pmNew York John F Kennedy Intl

7h 10m

LHR6:20 amLondon Heathrow

May 5

LHR8:25 amLondon Heathrow

7h 45m

JFK11:10 amNew York John F Kennedy Intl

$526

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from New York John F Kennedy Intl Airport to London Heathrow Airport that are best for you.

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Fly to

Route

Depart

Return

Price

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

vie. 11/28

7:01 pm-6:55 am

Nonstop6h 54m

London Heathrow

sáb. 2/28

8:00 pm-10:55 pm

Nonstop7h 55m

$488

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

jue. 1/8

10:05 am-7:10 am

1 stop16h 05m

London Heathrow

sáb. 1/17

6:00 am-2:15 pm

1 stop13h 15m

$489

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

sáb. 1/24

9:50 pm-9:40 am

Nonstop6h 50m

London Heathrow

sáb. 1/31

11:25 am-7:15 pm

1 stop12h 50m

$490

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

sáb. 1/10

9:35 pm-9:35 am

Nonstop7h 00m

London Heathrow

sáb. 1/17

10:20 am-7:05 pm

1 stop13h 45m

$491

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

mié. 12/3

9:50 pm-9:40 am

Nonstop6h 50m

London Heathrow

jue. 12/11

11:25 am-7:15 pm

1 stop12h 50m

$492

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

mié. 1/7

9:00 pm-11:25 am

1 stop9h 25m

London Heathrow

jue. 1/22

12:10 pm-7:29 pm

1 stop12h 19m

$493

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

jue. 1/8

9:00 pm-1:25 pm

1 stop11h 25m

London Heathrow

lun. 1/12

7:50 am-1:55 pm

1 stop11h 05m

$494

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

lun. 12/1

10:05 am-7:10 am

1 stop16h 05m

London Heathrow

vie. 12/5

12:05 pm-8:58 pm

2 stops37h 53m

$495

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

vie. 12/5

6:00 pm-6:20 am

Nonstop7h 20m

London Heathrow

dom. 12/7

6:20 am-4:00 pm

1 stop14h 40m

$496

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

mié. 12/3

2:30 pm-7:00 am

1 stop11h 30m

London Heathrow

mié. 12/10

6:15 am-1:15 pm

1 stop12h 00m

$497

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How to get the cheapest flight ticket from New York John F Kennedy Intl Airport 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

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Other information

What is the typical price of a round-trip flight between New York John F Kennedy Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of September is, on average, the cheapest month to fly to London Heathrow Airport from New York John F Kennedy Intl Airport, with most prices found around $540. If you’re not able to fly to London Heathrow Airport in September, then October is your next best option. Flight prices from New York John F Kennedy Intl Airport to London Heathrow Airport during October average around $540.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $643. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $683.

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 at noon. momondo users have found flights departing from New York John F Kennedy Intl Airport to London Heathrow Airport at noon for as low as $586. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $693.

What is the cheapest New York John F Kennedy Intl to London Heathrow flight route?

Fly from New York John F Kennedy Intl to London Heathrow for the best New York John F Kennedy Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from New York John F Kennedy Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $610 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from New York John F Kennedy Intl Airport for as low as $570 on momondo.

What cabin class options are available on New York John F Kennedy Intl to London Heathrow flights?

There are 4 cabin classes available to choose from on New York John F Kennedy Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on New York John F Kennedy Intl Airport to London Heathrow Airport flights?

No. A direct flight is the cheapest option for a flight between New York John F Kennedy Intl Airport to London Heathrow Airport.

How have New York John F Kennedy Intl Airport to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for New York John F Kennedy Intl Airport to London Heathrow Airport flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from New York John F Kennedy Intl Airport to London Heathrow Airport

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

Estimated round-trip price

Cheap New York John F Kennedy Intl Airport to London Heathrow Airport (JFK to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New York John F Kennedy Intl Airport to London Heathrow Airport

Best Price Found	$264
Fastest flight time	6h 50m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from New York John F Kennedy Intl Airport in the past 72 hours is $264. The best round-trip flight deal from New York John F Kennedy Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is $519.

The fastest flight from New York John F Kennedy Intl Airport to London Heathrow Airport takes 6h 50m

Direct flights go from New York John F Kennedy Intl Airport to London Heathrow Airport every day.

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How far is New York John F Kennedy Intl to London Heathrow by plane?
There are 3440.0 mi between New York John F Kennedy Intl and London Heathrow. A reasonable flight in good conditions will take 6h 50m.
When did momondo last update prices for flights from New York John F Kennedy Intl Airport to London Heathrow Airport?
Prices for flights from New York John F Kennedy Intl Airport to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from New York John F Kennedy Intl Airport to London Heathrow Airport?
The number of operators available for flights from New York John F Kennedy Intl Airport to London Heathrow Airport is 19 as of November 2025.
How old do you have to be to fly from New York John F Kennedy Intl Airport to London Heathrow 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 New York John F Kennedy Intl Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from New York John F Kennedy Intl Airport to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from New York John F Kennedy Intl Airport to London Heathrow Airport is Boeing 777-300ER, representing 19.43% of all bookings. The subsequent popular models are Boeing 777 at 18.09%, Boeing 787-9 Dreamliner at 14.79%, and Boeing 777-200/200ER at 12.43%.
What is the most popular airline from New York John F Kennedy Intl Airport to London Heathrow Airport?
Based on momondo bookings for flights between New York John F Kennedy Intl Airport and London Heathrow Airport, the leading airline is British Airways, making up 38% of the total bookings. Other popular airlines include Virgin Atlantic with 17%, Delta with 15%, and Iberia with 9%.

Best airlines flying from New York John F Kennedy Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from New York John F Kennedy Intl Airport to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $251	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
TAP AIR PORTUGAL	PriceFrom $293	Free Cancellation	Rating 7.1 2,059 reviews	Search TAP AIR PORTUGAL flights
SWISS	PriceFrom $330	Free Cancellation	Rating 7.5 1,784 reviews	Search SWISS flights
British Airways	PriceFrom $394	Free Cancellation	Rating 6.7 7,521 reviews	Search British Airways flights
Norse Atlantic UK	PriceFrom $395	Free Cancellation	Rating 7.2 51 reviews	Search Norse Atlantic UK flights
Virgin Atlantic	PriceFrom $400	Free Cancellation	Rating 7.5 673 reviews	Search Virgin Atlantic flights
KLM	PriceFrom $400	Free Cancellation	Rating 7.7 1,411 reviews	Search KLM flights
Air France	PriceFrom $400	Free Cancellation	Rating 7.4 1,487 reviews	Search Air France flights
Delta	PriceFrom $402	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Aer Lingus	PriceFrom $423	Free Cancellation	Rating 7.2 1,370 reviews	Search Aer Lingus flights

Alaska Airlines Flights From New York John F Kennedy Intl Airport to London Heathrow Airport
Alaska Airlines operates around 73 flights from New York John F Kennedy Intl Airport to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been $987, but momondo users have found Alaska Airlines deals from New York John F Kennedy Intl Airport to London Heathrow Airport from as low as $543 round-trip. Alaska Airlines has been scored 8.0/10 in 11,288 reviews.
Delta Flights From New York John F Kennedy Intl Airport to London Heathrow Airport
Another popular option for New York John F Kennedy Intl Airport to London Heathrow Airport flights is Delta (7.9/10, 8,007 ratings). Delta flies from New York John F Kennedy Intl Airport to London Heathrow Airport around 44 times per week, with deals starting from $402 round-trip and rising to an average price of around $647.

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Stratford-upon-Avon

Crawley

Brentwood

Chelmsford

Salisbury

Wembley

Folkestone

Romford

Ilford

Cobham

Swindon

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

All flight searches from New York to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from New York to London?

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 New York to London.

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

Yes. momondo can track prices for New York to London 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.

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New York John F Kennedy Intl Airport flight routes

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Cheap flights from New York John F Kennedy Intl Airport to London from $151

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JetBlue flights from New York John F Kennedy Intl Airport to London Heathrow Airport

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Finnair flights from New York John F Kennedy Intl Airport to London Heathrow Airport

Our best Finnair deals on New York John F Kennedy Intl Airport to London Heathrow Airport flight tickets

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How to get the cheapest flight ticket from New York John F Kennedy Intl Airport 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

What is the typical price of a round-trip flight between New York John F Kennedy Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $643. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $683.

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

What is the cheapest New York John F Kennedy Intl to London Heathrow flight route?

Fly from New York John F Kennedy Intl to London Heathrow for the best New York John F Kennedy Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on New York John F Kennedy Intl to London Heathrow flights?

There are 4 cabin classes available to choose from on New York John F Kennedy Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on New York John F Kennedy Intl Airport to London Heathrow Airport flights?

No. A direct flight is the cheapest option for a flight between New York John F Kennedy Intl Airport to London Heathrow Airport.

How have New York John F Kennedy Intl Airport to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for New York John F Kennedy Intl Airport to London Heathrow Airport flights are approximately 22% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from New York John F Kennedy Intl to London Heathrow?

Air Canada, Icelandair, and Virgin Atlantic are the most popular carriers operating from New York John F Kennedy Intl to London Heathrow

What airlines fly to London Heathrow Airport?

How often are flights from New York to London delayed?

Historically, on average around 14% of flights between New York and London have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

What is the most punctual flight time for New York to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on New York to London flights?

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between New York John F Kennedy Intl Airport and London Heathrow Airport?

Reykjavik (KEF) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from New York John F Kennedy Intl Airport to London Heathrow Airport?

Flights via Shannon (SNN) offer the lowest average round-trip price of $490.

Which layover airport has the shortest travel time from New York John F Kennedy Intl Airport to London Heathrow Airport?

Flights connecting via Shannon (SNN) have the shortest average one-way travel time: 9h 37m.

Which layover airport has the shortest connection time from New York John F Kennedy Intl Airport to London Heathrow Airport?

Brussels (BRU) has the shortest average layover time for this route: 1h 30m.

How many flights depart from New York John F Kennedy Intl Airport to London Heathrow Airport on average per day?

As of November 2025, 94 flights take off from New York John F Kennedy Intl Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 9:00PM, with 84% of daily flights taking off in the evening.

How many flights depart from New York John F Kennedy Intl Airport to London Heathrow Airport on average per week?

664 flights are operational weekly from New York John F Kennedy Intl Airport to London Heathrow Airport as of November 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

When to book flights from New York John F Kennedy Intl Airport to London Heathrow Airport

Cheap New York John F Kennedy Intl Airport to London Heathrow Airport (JFK to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New York John F Kennedy Intl Airport to London Heathrow Airport

Best Price Found

Fastest flight time

Direct flights

How far is New York John F Kennedy Intl to London Heathrow by plane?

When did momondo last update prices for flights from New York John F Kennedy Intl Airport to London Heathrow Airport?

How many operators does momondo search for flights from New York John F Kennedy Intl Airport to London Heathrow Airport?

How old do you have to be to fly from New York John F Kennedy Intl Airport to London Heathrow Airport?

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

What is the most popular plane model from New York John F Kennedy Intl Airport to London Heathrow Airport?

What is the most popular airline from New York John F Kennedy Intl Airport to London Heathrow Airport?

Best airlines flying from New York John F Kennedy Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from New York John F Kennedy Intl Airport to London Heathrow Airport with momondo

Alaska Airlines Flights From New York John F Kennedy Intl Airport to London Heathrow Airport

Delta Flights From New York John F Kennedy Intl Airport to London Heathrow Airport

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