Cheap flights from the United States to London from $142

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 11/19. 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
Norse Atlantic UK Logo
6:20 pm - 6:20 amJFK-LGW
7h 00mnonstop
Norse Atlantic UK Logo
1:00 pm - 4:50 pmLGW-JFK
7h 50mnonstop
$425Norse Atlantic UK
Find Deal
Tue, Oct 21 - Wed, Oct 29
British Airways Logo
9:50 am - 9:40 pmJFK-LHR
6h 50mnonstop
British Airways Logo
7:40 pm - 10:30 pmLHR-JFK
7h 50mnonstop
$445British Airways
Find Deal
Tue, Oct 14 - Tue, Oct 21
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
United Airlines Logo
6:55 am - 9:00 pmJFK-LHR
33h 05m2 stops
United Airlines Logo
2:25 pm - 3:40 pmLHR-JFK
29h 15m1 stop
$473United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
5:45 pm - 9:35 amLGA-LHR
10h 50m1 stop
United Airlines Logo
4:40 pm - 11:43 pmLHR-LGA
12h 03m1 stop
$478United Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
Delta Logo
10:45 pm - 10:30 amBOS-LHR
6h 45mnonstop
Delta Logo
6:20 am - 1:40 pmLHR-BOS
12h 20m1 stop
$479Delta
Find Deal
Wed, Oct 22 - Wed, Nov 5
Iberia Logo
8:10 pm - 7:50 amBOS-LHR
6h 40mnonstop
Iberia Logo
8:55 am - 11:25 amLHR-BOS
7h 30mnonstop
$482Iberia
Find Deal
Wed, Oct 1 - Tue, Oct 7
British Airways Logo
9:25 pm - 9:30 amEWR-LHR
7h 05mnonstop
British Airways Logo
4:35 pm - 7:25 pmLHR-EWR
7h 50mnonstop
$520British Airways
Find Deal
Tue, Sep 30 - Mon, Oct 6

TAP AIR PORTUGAL flights from United States to London

Our best TAP AIR PORTUGAL deals on United States to London flight tickets
TAP AIR PORTUGAL
Sep 20
JFK10:05 pmNew York John F Kennedy Intl
18h 55m
1 stop
LHR10:00 pmLondon Heathrow
Sep 30
LHR11:20 amLondon Heathrow
13h 45m
1 stop
JFK8:05 pmNew York John F Kennedy Intl
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
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

Virgin Atlantic flights from United States to London

Our best Virgin Atlantic deals on United States to London flight tickets
Virgin Atlantic
Oct 23
JFK8:10 amNew York John F Kennedy Intl
6h 50m
LHR8:00 pmLondon Heathrow
Oct 27
LHR8:00 pmLondon Heathrow
7h 55m
JFK11:55 pmNew York John F Kennedy Intl
Virgin Atlantic
Oct 23
JFK2:40 pmNew York John F Kennedy Intl
11h 05m
1 stop
LHR6:45 amLondon Heathrow
Oct 27
LHR8:00 pmLondon Heathrow
7h 55m
JFK11:55 pmNew York John F Kennedy Intl
Virgin Atlantic
Oct 15
JFK6:00 pmNew York John F Kennedy Intl
7h 25m
LHR6:25 amLondon Heathrow
Oct 22
LHR6:30 pmLondon Heathrow
7h 55m
JFK9:25 pmNew York John F Kennedy Intl

momondo Fare Finder

 
Customize your flight search to find flights from United States to London 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 17, 2025.
Use the filters below to find and compare flights from the United States to London 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 - LGW

JFKLGW

New York John F Kennedy Intl

Tue 10/21

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Wed 10/29

1:00 pm-4:50 pm

Nonstop7h 50m

$425

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

7:40 pm-10:30 pm

Nonstop7h 50m

$445

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

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 10/24

6:55 am-9:00 pm

2 stops33h 05m

London Heathrow

Sun 10/26

2:25 pm-3:40 pm

1 stop29h 15m

$473

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 10/17

5:45 pm-9:35 am

1 stop10h 50m

London Heathrow

Mon 10/20

4:40 pm-11:43 pm

1 stop12h 03m

$478

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/22

10:45 pm-10:30 am

Nonstop6h 45m

London Heathrow

Wed 11/5

6:20 am-1:40 pm

1 stop12h 20m

$479

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/1

8:10 pm-7:50 am

Nonstop6h 40m

London Heathrow

Tue 10/7

8:55 am-11:25 am

Nonstop7h 30m

$482

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 9/30

9:25 pm-9:30 am

Nonstop7h 05m

London Heathrow

Mon 10/6

4:35 pm-7:25 pm

Nonstop7h 50m

$520

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

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?

The cheapest month to fly to London from United States is in January. Flight prices, which tend to average around $414, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from United States averaging around $416.

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

The cheapest day to depart from United States to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $624. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $670. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from United States at noon is the least expensive time of day to depart. momondo users have found prices as low as $500 when looking at flights departing at noon. Flights to London are more costly in the evening, with an average ticket price of $665. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest United States to London flight route?

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

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

You are more likely to see cheaper flights to London from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 from United States for as low as $558 on momondo.

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

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

You could potentially save up to 2% on your flight if you consider stops on a United States to London flight.

Cheap United States to London flight deals and tips

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

Best Price Found

$138

Fastest flight time

6h 30m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from United States in the past 72 hours is $138. The best round-trip flight deal from United States to London found on momondo in the last 72 hours is $418.
The fastest flight from United States to London takes 6h 30m
Direct flights go from United States to London every day.
There is 1 airport near London: London Heathrow (LHR)
  • When did momondo last update prices for flights from United States to London?

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

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

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

    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.

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

    The necessary travel and health documents for your London 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?

Best airlines flying from United States to London

Compare and see reviews for airlines that fly from United States to London with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $45Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
LufthansaPriceFrom $197Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $203Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
WestJetPriceFrom $272Free CancellationRating
7.2
3,095 reviews
Search WestJet flights
SWISSPriceFrom $283Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
TAP AIR PORTUGALPriceFrom $293Free CancellationRating
7.1
1,977 reviews
Search TAP AIR PORTUGAL flights
Air FrancePriceFrom $340Free CancellationRating
7.4
1,468 reviews
Search Air France flights
Norse Atlantic UKPriceFrom $346Free CancellationRating
7.1
49 reviews
Search Norse Atlantic UK flights
Air CanadaPriceFrom $354Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
KLMPriceFrom $365Free CancellationRating
7.8
1,386 reviews
Search KLM 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
Brentwood
Ilford
Folkestone
Colchester
Watford
Wembley
Richmond
Croydon

Why use momondo?

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

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?

Once all potential United States to London 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 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.

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1 adult
Fri 10/17
Fri 10/24

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London