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Cheap flights from London Heathrow Airport to the United States from £260

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 the United States departing on 9/2. 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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Find the cheapest flights from London Heathrow Airport to the United States

Cheap return flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
08:15 - 20:10LHR-BOS
16h 55m1 stop
TAP AIR PORTUGAL Logo
18:05 - 17:30BOS-LHR
18h 25m1 stop
£340TAP AIR PORTUGAL
Find Deal
gio, 4 dic - lun, 8 dic
TAP AIR PORTUGAL Logo
12:25 - 20:10LHR-BOS
12h 45m1 stop
TAP AIR PORTUGAL Logo
18:05 - 12:40BOS-LHR
13h 35m1 stop
£341TAP AIR PORTUGAL
Find Deal
ven, 5 dic - lun, 8 dic
Finnair Logo
17:05 - 09:19LHR-LGA
20h 14m1 stop
Finnair Logo
13:00 - 06:30LGA-LHR
13h 30m1 stop
£436Finnair
Find Deal
mar, 10 mar - mar, 17 mar
Virgin Atlantic Logo
06:30 - 12:45LHR-LAX
13h 15m1 stop
Virgin Atlantic Logo
16:05 - 10:30LAX-LHR
10h 25mdirect
£439Virgin Atlantic
Find Deal
lun, 23 mar - dom, 5 apr
Lufthansa Logo
07:40 - 14:50LHR-SFO
15h 10m1 stop
Lufthansa Logo
17:25 - 12:00SFO-LHR
10h 35mdirect
£444Lufthansa
Find Deal
mer, 26 nov - mar, 2 dic
Virgin Atlantic Logo
09:00 - 20:04LHR-LGA
16h 04m2 stops
Virgin Atlantic Logo
16:30 - 06:50LGA-LHR
9h 20m1 stop
£445Virgin Atlantic
Find Deal
lun, 8 dic - lun, 15 dic
Lufthansa Logo
07:40 - 15:15LHR-LAX
15h 35m1 stop
Lufthansa Logo
08:40 - 06:40LAX-LHR
14h 00m1 stop
£446Lufthansa
Find Deal
mer, 3 dic - mer, 10 dic
Finnair Logo
14:45 - 23:21LHR-LGA
13h 36m1 stop
Finnair Logo
15:50 - 06:30LGA-LHR
9h 40m1 stop
£448Finnair
Find Deal
mer, 12 nov - mer, 19 nov
British Airways Logo
11:45 - 19:21LHR-LGA
12h 36m1 stop
British Airways Logo
16:05 - 06:30LGA-LHR
9h 25m1 stop
£449British Airways
Find Deal
lun, 9 feb - mar, 24 feb
British Airways Logo
16:05 - 18:50LHR-LAS
10h 45mdirect
British Airways Logo
20:55 - 14:50LAS-LHR
9h 55mdirect
£510British Airways
Find Deal
mer, 4 feb - lun, 9 feb

Lufthansa flights from London Heathrow Airport to United States

Our best Lufthansa deals on London Heathrow Airport to United States flight tickets
Lufthansa
26 Nov
LHR07:40London Heathrow
15h 10m
1 stop
SFO14:50San Francisco
2 Dec
SFO17:25San Francisco
10h 35m
LHR12:00London Heathrow
£444
Find similar
Lufthansa
3 Dec
LHR07:40London Heathrow
15h 35m
1 stop
LAX15:15Los Angeles
10 Dec
LAX08:40Los Angeles
14h 00m
1 stop
LHR06:40London Heathrow
£446
Find similar
Lufthansa
12 Nov
LHR06:35London Heathrow
16h 40m
1 stop
LAX15:15Los Angeles
11 Dec
LAX19:00Los Angeles
10h 30m
LHR13:30London Heathrow
£464
Find similar

TAP AIR PORTUGAL flights from London Heathrow Airport to United States

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to United States flight tickets
TAP AIR PORTUGAL
4 Dec
LHR08:15London Heathrow
16h 55m
1 stop
BOS20:10Boston Logan Intl
8 Dec
BOS18:05Boston Logan Intl
18h 25m
1 stop
LHR17:30London Heathrow
£340
Find similar
TAP AIR PORTUGAL
5 Dec
LHR12:25London Heathrow
12h 45m
1 stop
BOS20:10Boston Logan Intl
8 Dec
BOS18:05Boston Logan Intl
13h 35m
1 stop
LHR12:40London Heathrow
£341
Find similar
TAP AIR PORTUGAL
1 Apr
LHR08:00London Heathrow
17h 45m
1 stop
BOS20:45Boston Logan Intl
9 Apr
BOS22:45Boston Logan Intl
15h 05m
1 stop
LHR18:50London Heathrow
£342
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to United States 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 31 ottobre 2025.
Use the filters below to find and compare flights from London Heathrow Airport to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

gio 4/12

08:15-20:10

1 stop16h 55m

Boston Logan Intl

lun 8/12

18:05-17:30

1 stop18h 25m

£340

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

ven 5/12

12:25-20:10

1 stop12h 45m

Boston Logan Intl

lun 8/12

18:05-12:40

1 stop13h 35m

£341

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

mar 10/3

17:05-09:19

1 stop20h 14m

New York LaGuardia

mar 17/3

13:00-06:30

1 stop13h 30m

£436

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

lun 23/3

06:30-12:45

1 stop13h 15m

Los Angeles

dom 5/4

16:05-10:30

Nonstop10h 25m

£439

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

mer 26/11

07:40-14:50

1 stop15h 10m

San Francisco

mar 2/12

17:25-12:00

Nonstop10h 35m

£444

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

lun 8/12

09:00-20:04

2 stops16h 04m

New York LaGuardia

lun 15/12

16:30-06:50

1 stop9h 20m

£445

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

mer 3/12

07:40-15:15

1 stop15h 35m

Los Angeles

mer 10/12

08:40-06:40

1 stop14h 00m

£446

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

mer 12/11

14:45-23:21

1 stop13h 36m

New York LaGuardia

mer 19/11

15:50-06:30

1 stop9h 40m

£448

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

lun 9/2

11:45-19:21

1 stop12h 36m

New York LaGuardia

mar 24/2

16:05-06:30

1 stop9h 25m

£449

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

mer 4/2

16:05-18:50

Nonstop10h 45m

Las Vegas Harry Reid Intl

lun 9/2

20:55-14:50

Nonstop9h 55m

£510

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to the United States from

How to get the cheapest flight ticket from London Heathrow Airport to United States

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 United States?

The month of March is, on average, the cheapest month to fly to United States from London Heathrow Airport, with most prices found around £387. If you are unable to visit United States during the month of March, then departing from London Heathrow Airport during the month September is also very affordable. Most momondo users find prices during this month for around £389.

What is the cheapest day to depart on your flight to United States?

According to our data, Wednesday is the cheapest day to fly to United States from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was £482. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to United States for around £548.

What is the cheapest time of day to depart on your flight to United States?

Our most recent data shows that the best time of day to fly to United States is in the morning. Flights from London Heathrow Airport to United States during this time can be as low as £492. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £612 on average. Flights to United States from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London Heathrow to United States flight route?

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

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around £452 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from London Heathrow Airport for as low as £411 on momondo.

What cabin class options are available on London Heathrow to United States flights?

There are 4 cabin classes available to choose from on London Heathrow to United States 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 London Heathrow Airport to United States flights?

You could potentially save up to 1% on your flight if you consider stops on a London Heathrow Airport to United States flight.

Cheap London Heathrow Airport to United States flight deals and tips

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

Best price found

£300

Fastest flight time

7h 25m

Direct flights

Every day

Airports in United States

2 airports
The best one-way flight to United States from London Heathrow Airport in the past 72 hours is £300. The best return flight deal from London Heathrow Airport to United States found on momondo in the last 72 hours is £424.
The fastest flight from London Heathrow Airport to United States takes 7h 25m
Direct flights go from London Heathrow Airport to United States every day.
There are 2 airports near United States: Boston Logan Intl (BOS), New York John F Kennedy Intl (JFK)
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to United States?

    Prices for flights from London Heathrow Airport to United States were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to United States?

  • How old do you have to be to fly from London Heathrow Airport to United States?

    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 United States.

  • What documentation or ID do you need to fly to United States?

    The required travel and health documents for your United States 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 United States. 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 London Heathrow Airport to United States?

Best airlines flying from London Heathrow Airport to United States

Compare and see reviews for airlines that fly from London Heathrow Airport to United States with momondo
Airline
Rating
Free Cancellation
Price
Norse Atlantic UKPriceFrom £216Free CancellationRating
7.2
51 reviews
Search Norse Atlantic UK flights
JetBluePriceFrom £242Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
DeltaPriceFrom £242Free CancellationRating
7.9
7,993 reviews
Search Delta flights
TAP AIR PORTUGALPriceFrom £288Free CancellationRating
7.1
2,037 reviews
Search TAP AIR PORTUGAL flights
Air CanadaPriceFrom £290Free CancellationRating
7.1
10,378 reviews
Search Air Canada flights
SWISSPriceFrom £297Free CancellationRating
7.5
1,775 reviews
Search SWISS flights
United AirlinesPriceFrom £301Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom £302Free CancellationRating
7.4
1,546 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom £308Free CancellationRating
7.2
1,361 reviews
Search Aer Lingus flights
IcelandairPriceFrom £319Free CancellationRating
7.1
562 reviews
Search Icelandair flights

Why use momondo?

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

Finding the right flight to United States from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United States quick and easy, saving you time and money.

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

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

How can momondo help me find flights from London to United States?

momondo provides multiple filters to help you find the best flight to United States from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to United States 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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Find better results for your trip to the United States

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