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Cheap flights from North America to London from £118

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from North America to London departing on 14/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Iberia Logo
20:40 - 18:15JFK-LHR
16h 35m1 stop
Iberia Logo
08:55 - 14:30LHR-JFK
10h 35m1 stop
£309Iberia
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Fri, 3 Oct - Sun, 5 Oct
Iberia Logo
16:50 - 09:30JFK-LHR
11h 40m1 stop
Iberia Logo
08:55 - 11:00LHR-JFK
31h 05m1 stop
£309Iberia
Find Deal
Fri, 26 Sep - Sun, 28 Sep
Virgin Atlantic Logo
22:45 - 10:30BOS-LHR
6h 45mdirect
Virgin Atlantic Logo
09:00 - 20:20LHR-BOS
16h 20m1 stop
£339Virgin Atlantic
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Tue, 23 Sep - Thu, 25 Sep
Lufthansa Logo
22:00 - 17:40BOS-LHR
14h 40m1 stop
Lufthansa Logo
10:50 - 17:40LHR-BOS
11h 50m1 stop
£341Lufthansa
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Sun, 28 Sep - Tue, 30 Sep
Air Canada Logo
19:05 - 09:35LGA-LHR
9h 30m1 stop
Air Canada Logo
13:25 - 19:02LHR-LGA
10h 37m1 stop
£356Air Canada
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Wed, 22 Oct - Mon, 3 Nov
Air Canada Logo
19:05 - 09:35LGA-LHR
9h 30m1 stop
Air Canada Logo
09:30 - 14:47LHR-LGA
10h 17m1 stop
£357Air Canada
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Mon, 22 Sep - Tue, 30 Sep
Virgin Atlantic Logo
16:00 - 08:05LGA-LHR
11h 05m1 stop
Virgin Atlantic Logo
09:40 - 15:25LHR-LGA
10h 45m1 stop
£365Virgin Atlantic
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Thu, 11 Sep - Thu, 18 Sep
Lufthansa Logo
17:45 - 09:35LGA-LHR
10h 50m1 stop
Lufthansa Logo
15:50 - 22:34LHR-LGA
11h 44m1 stop
£370Lufthansa
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Mon, 6 Oct - Mon, 13 Oct
British Airways Logo
13:00 - 06:20BOS-LHR
12h 20m1 stop
British Airways Logo
09:15 - 19:50LHR-BOS
15h 35m1 stop
£370British Airways
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Thu, 25 Sep - Fri, 10 Oct
British Airways Logo
19:48 - 12:15LGA-LHR
11h 27m1 stop
British Airways Logo
11:40 - 08:38LHR-LGA
25h 58m1 stop
£376British Airways
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Sat, 6 Sep - Tue, 25 Nov

Scandinavian Airlines flights from North America to London Heathrow Airport

Our best Scandinavian Airlines deals on North America to London Heathrow Airport flight tickets
Scandinavian Airlines
11 Oct
JFK18:55New York John F Kennedy Intl
17h 45m
1 stop
LHR17:40London Heathrow
13 Oct
LHR07:05London Heathrow
13h 35m
1 stop
JFK15:40New York John F Kennedy Intl
£315
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Scandinavian Airlines
5 Dec
JFK17:35New York John F Kennedy Intl
35h 00m
2 stops
LHR09:35London Heathrow
7 Dec
LHR18:40London Heathrow
26h 05m
1 stop
JFK15:45New York John F Kennedy Intl
£317
Find similar
Scandinavian Airlines
11 Oct
JFK17:10New York John F Kennedy Intl
19h 30m
2 stops
LHR17:40London Heathrow
13 Oct
LHR07:05London Heathrow
13h 35m
1 stop
JFK15:40New York John F Kennedy Intl
£327
Find similar

Aer Lingus flights from North America to London Heathrow Airport

Our best Aer Lingus deals on North America to London Heathrow Airport flight tickets
Aer Lingus
8 Oct
JFK16:55New York John F Kennedy Intl
10h 05m
1 stop
LHR08:00London Heathrow
20 Oct
LHR09:50London Heathrow
12h 00m
1 stop
JFK16:50New York John F Kennedy Intl
£341
Find similar
Aer Lingus
22 Sept
JFK18:25New York John F Kennedy Intl
9h 40m
1 stop
LHR09:05London Heathrow
5 Oct
LHR09:50London Heathrow
12h 00m
1 stop
JFK16:50New York John F Kennedy Intl
£342
Find similar
Aer Lingus
1 Oct
JFK18:25New York John F Kennedy Intl
9h 40m
1 stop
LHR09:05London Heathrow
15 Dec
LHR10:00London Heathrow
11h 25m
1 stop
JFK16:25New York John F Kennedy Intl
£343
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momondo Fare Finder

 
Customise your flight search to find flights from North America to London Heathrow Airport 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 279,928 searches. Data last updated 27 August 2025.
Use the filters below to find and compare flights from North America to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 3/10

20:40-18:15

1 stop16h 35m

London Heathrow

Sun 5/10

08:55-14:30

1 stop10h 35m

£309

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 26/9

16:50-09:30

1 stop11h 40m

London Heathrow

Sun 28/9

08:55-11:00

1 stop31h 05m

£309

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 23/9

22:45-10:30

Nonstop6h 45m

London Heathrow

Thu 25/9

09:00-20:20

1 stop16h 20m

£339

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 28/9

22:00-17:40

1 stop14h 40m

London Heathrow

Tue 30/9

10:50-17:40

1 stop11h 50m

£341

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 22/10

19:05-09:35

1 stop9h 30m

London Heathrow

Mon 3/11

13:25-19:02

1 stop10h 37m

£356

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 22/9

19:05-09:35

1 stop9h 30m

London Heathrow

Tue 30/9

09:30-14:47

1 stop10h 17m

£357

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 11/9

16:00-08:05

1 stop11h 05m

London Heathrow

Thu 18/9

09:40-15:25

1 stop10h 45m

£365

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 6/10

17:45-09:35

1 stop10h 50m

London Heathrow

Mon 13/10

15:50-22:34

1 stop11h 44m

£370

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 25/9

13:00-06:20

1 stop12h 20m

London Heathrow

Fri 10/10

09:15-19:50

1 stop15h 35m

£370

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 6/9

19:48-12:15

1 stop11h 27m

London Heathrow

Tue 25/11

11:40-08:38

1 stop25h 58m

£376

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from North America 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 cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from North America to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £405. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from North America averaging around £422.

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 North America is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £430. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £491.

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 midday. momondo users have found flights departing from North America to London Heathrow Airport at midday for as low as £414. 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 afternoon when prices are £474 on average. Flights to London Heathrow Airport from North America in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest North America to London Heathrow flight route?

Fly from New York John F Kennedy Intl to London Heathrow for the best North America - 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 North America when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £454 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from North America for as low as £414 on momondo.

What cabin class options are available on North America to London Heathrow flights?

There are 4 cabin classes available to choose from on North America 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 North America to London Heathrow Airport flights?

You could potentially save up to 12% on your flight if you consider stops on a North America to London Heathrow Airport flight.

Cheap North America to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from North America to London Heathrow Airport

Best price found

£165

Fastest flight time

6h 30m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from North America in the past 72 hours is £165. The best return flight deal from North America to London Heathrow Airport found on momondo in the last 72 hours is £351.
The fastest flight from North America to London Heathrow Airport takes 6h 30m
Direct flights go from North America to London Heathrow Airport every day.
Search flight deals

  • When did momondo last update prices for flights from North America to London Heathrow Airport?

    Prices for flights from North America to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from North America to London Heathrow Airport?

  • How old do you have to be to fly from North America to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North America to London Heathrow Airport.

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

    The required travel and health documents for your London Heathrow 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 London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from North America to London Heathrow Airport?

Best airlines flying from North America to London Heathrow Airport

Compare and see reviews for airlines that fly from North America to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom £229Free CancellationRating
7.4
1,469 reviews
Search Air France flights
Virgin AtlanticPriceFrom £275Free CancellationRating
7.4
661 reviews
Search Virgin Atlantic flights
KLMPriceFrom £286Free CancellationRating
7.8
1,384 reviews
Search KLM flights
DeltaPriceFrom £293Free CancellationRating
7.9
7,977 reviews
Search Delta flights
JetBluePriceFrom £294Free CancellationRating
7.2
2,919 reviews
Search JetBlue flights
Scandinavian AirlinesPriceFrom £303Free CancellationRating
7.4
1,480 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom £306Free CancellationRating
6.7
7,310 reviews
Search British Airways flights
LufthansaPriceFrom £318Free CancellationRating
6.8
7,363 reviews
Search Lufthansa flights
United AirlinesPriceFrom £344Free CancellationRating
7.4
8,945 reviews
Search United Airlines flights
IcelandairPriceFrom £360Free CancellationRating
7.0
533 reviews
Search Icelandair flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Maidstone
Northampton
Slough
Gatwick
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Swanage
Colchester
Poole
Worthing
Salisbury
Dartford

Why use momondo?

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

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 London from North America.

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

Yes. All flights to London from North America on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from North America 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 North America to London.

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

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

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