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Cheap flights from the United States to London from $145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to London departing on 9/22. 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 the United States to London

Recent round-trip flight deals from the United States to London

LEVEL Logo
11:45 pm - 6:00 pmJFK-LHR
13h 15m1 stop
LEVEL Logo
9:55 am - 10:00 pmLHR-JFK
17h 05m1 stop
$425LEVEL
Find Deal
Sun, Nov 9 - Sat, Nov 22
LEVEL Logo
11:45 pm - 9:10 amJFK-LHR
28h 25m1 stop
LEVEL Logo
9:55 am - 10:00 pmLHR-JFK
17h 05m1 stop
$426LEVEL
Find Deal
Sun, Nov 9 - Thu, Nov 20
British Airways Logo
9:50 am - 9:40 pmJFK-LHR
6h 50mnonstop
British Airways Logo
5:00 pm - 7:55 pmLHR-JFK
7h 55mnonstop
$445British Airways
Find Deal
Tue, Oct 14 - Tue, Oct 21
Iberia Logo
9:50 am - 9:40 pmJFK-LHR
6h 50mnonstop
Iberia Logo
7:05 pm - 9:59 pmLHR-JFK
7h 54mnonstop
$446Iberia
Find Deal
Tue, Oct 14 - Tue, Oct 21
British Airways Logo
7:30 pm - 7:45 amJFK-LHR
7h 15mnonstop
British Airways Logo
4:20 pm - 7:25 pmLHR-JFK
8h 05mnonstop
$447British Airways
Find Deal
Sun, Oct 5 - Sat, Oct 11
Iberia Logo
8:40 pm - 6:15 pmJFK-LHR
16h 35m1 stop
Iberia Logo
2:10 pm - 5:05 pmLHR-JFK
7h 55mnonstop
$450Iberia
Find Deal
Fri, Oct 10 - Sun, Oct 12
Delta Logo
1:10 pm - 6:20 amBOS-LHR
12h 10m1 stop
Delta Logo
6:20 am - 4:20 pmLHR-BOS
15h 00m1 stop
$463Delta
Find Deal
Tue, Nov 11 - Thu, Nov 13
Delta Logo
9:00 pm - 7:50 amBOS-LHR
6h 50mnonstop
Delta Logo
6:20 am - 1:40 pmLHR-BOS
12h 20m1 stop
$479Delta
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
2:15 pm - 5:55 amLGA-LHR
11h 40m1 stop
United Airlines Logo
1:25 pm - 7:03 pmLHR-LGA
10h 38m1 stop
$486United Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
United Airlines Logo
7:05 pm - 9:35 amLGA-LHR
9h 30m1 stop
United Airlines Logo
1:25 pm - 7:02 pmLHR-LGA
10h 37m1 stop
$489United Airlines
Find Deal
Tue, Oct 21 - Sun, Jan 25

Aer Lingus flights from United States to London Heathrow Airport

Our best Aer Lingus deals on United States to London Heathrow Airport flight tickets
Aer Lingus
Oct 23
BOS6:35 pmBoston Logan Intl
9h 30m
1 stop
LHR9:05 amLondon Heathrow
Nov 2
LHR10:00 amLondon Heathrow
11h 50m
1 stop
BOS4:50 pmBoston Logan Intl
$456
Find similar
Aer Lingus
Oct 15
JFK6:25 pmNew York John F Kennedy Intl
9h 40m
1 stop
LHR9:05 amLondon Heathrow
Oct 22
LHR9:50 amLondon Heathrow
12h 00m
1 stop
JFK4:50 pmNew York John F Kennedy Intl
$458
Find similar
Aer Lingus
Oct 13
JFK4:55 pmNew York John F Kennedy Intl
10h 05m
1 stop
LHR8:00 amLondon Heathrow
Oct 20
LHR9:50 amLondon Heathrow
12h 00m
1 stop
JFK4:50 pmNew York John F Kennedy Intl
$459
Find similar

TAP AIR PORTUGAL flights from United States to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on United States to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
Nov 10
JFK10:00 pmNew York John F Kennedy Intl
19h 40m
1 stop
LHR10:40 pmLondon Heathrow
Nov 18
LHR6:00 amLondon Heathrow
19h 05m
1 stop
JFK8:05 pmNew York John F Kennedy Intl
$427
Find similar
TAP AIR PORTUGAL
Oct 23
JFK10:05 pmNew York John F Kennedy Intl
19h 50m
1 stop
LHR10:55 pmLondon Heathrow
Nov 20
LHR6:30 pmLondon Heathrow
30h 35m
1 stop
JFK8:05 pmNew York John F Kennedy Intl
$428
Find similar
TAP AIR PORTUGAL
Nov 10
JFK10:00 pmNew York John F Kennedy Intl
18h 35m
1 stop
LHR9:35 pmLondon Heathrow
Nov 18
LHR8:15 amLondon Heathrow
16h 50m
1 stop
JFK8:05 pmNew York John F Kennedy Intl
$429
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from the United States 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

Sun 11/9

11:45 pm-6:00 pm

1 stop13h 15m

London Heathrow

Sat 11/22

9:55 am-10:00 pm

1 stop17h 05m

$425

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 11/9

11:45 pm-9:10 am

1 stop28h 25m

London Heathrow

Thu 11/20

9:55 am-10:00 pm

1 stop17h 05m

$426

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 10/14

9:50 am-9:40 pm

Nonstop6h 50m

London Heathrow

Tue 10/21

5:00 pm-7:55 pm

Nonstop7h 55m

$445

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 10/14

9:50 am-9:40 pm

Nonstop6h 50m

London Heathrow

Tue 10/21

7:05 pm-9:59 pm

Nonstop7h 54m

$446

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 10/5

7:30 pm-7:45 am

Nonstop7h 15m

London Heathrow

Sat 10/11

4:20 pm-7:25 pm

Nonstop8h 05m

$447

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 10/10

8:40 pm-6:15 pm

1 stop16h 35m

London Heathrow

Sun 10/12

2:10 pm-5:05 pm

Nonstop7h 55m

$450

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 11/11

1:10 pm-6:20 am

1 stop12h 10m

London Heathrow

Thu 11/13

6:20 am-4:20 pm

1 stop15h 00m

$463

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/29

9:00 pm-7:50 am

Nonstop6h 50m

London Heathrow

Wed 11/5

6:20 am-1:40 pm

1 stop12h 20m

$479

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 10/27

2:15 pm-5:55 am

1 stop11h 40m

London Heathrow

Wed 11/5

1:25 pm-7:03 pm

1 stop10h 38m

$486

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Tue 10/21

7:05 pm-9:35 am

1 stop9h 30m

London Heathrow

Sun 1/25

1:25 pm-7:02 pm

1 stop10h 37m

$489

Flights are sorted by cheapest round-trip 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 United States 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?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from United States, with most prices found around $541. If you’re not able to fly to London Heathrow Airport in October, then August is your next best option. Flight prices from United States to London Heathrow Airport during August average around $562.

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 $632. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $676.

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 in the morning. momondo users have found flights departing from United States to London Heathrow Airport in the morning for as low as $581. 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 $691.

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

Fly from New York John F Kennedy Intl to London Heathrow for the best United States - 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 United States when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $609 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 United States for as low as $558 on momondo.

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

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

You could potentially save up to 15% on your flight if you consider stops on a United States to London Heathrow Airport flight.

Cheap United States to London Heathrow Airport flight deals and tips

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

Best Price Found

$254

Fastest flight time

6h 30m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from United States in the past 72 hours is $254. The best round-trip flight deal from United States to London Heathrow Airport found on momondo in the last 72 hours is $514.
The fastest flight from United States to London Heathrow Airport takes 6h 30m
Direct flights go from United States to London Heathrow Airport every day.
Search flight deals

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

    Prices for flights from United States to London Heathrow Airport are updated daily.

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

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

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

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United States to London Heathrow Airport?

Best airlines flying from United States to London Heathrow Airport

Compare and see reviews for airlines that fly from United States to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $51Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
LufthansaPriceFrom $197Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $203Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
WestJetPriceFrom $272Free CancellationRating
7.2
3,093 reviews
Search WestJet flights
SWISSPriceFrom $283Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
TAP AIR PORTUGALPriceFrom $293Free CancellationRating
7.1
1,975 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom $322Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom $340Free CancellationRating
7.4
1,468 reviews
Search Air France flights
Air CanadaPriceFrom $354Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Norse Atlantic UKPriceFrom $363Free CancellationRating
7.1
49 reviews
Search Norse Atlantic UK flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Salisbury
Brentwood
Ilford
Folkestone
Colchester
Swindon
Stratford-upon-Avon
Watford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to London. momondo saves you time and could save you money on your trip.

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

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

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

momondo helps you find the best flight between United States and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of United States to London 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 London Heathrow Airport trip

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