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Cheap flights from the United States to London from $146

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 12/3. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 pm - 11:20 amLGA-LHR
17h 35m1 stop
Multiple Airlines Logo
9:00 am - 9:33 pmLHR-LGA
17h 33m2 stops
$482Multiple Airlines
Find Deal
Wed, Nov 19 - Tue, Nov 25
Multiple Airlines Logo
10:05 am - 7:10 amJFK-LHR
16h 05m1 stop
Multiple Airlines Logo
6:00 am - 1:05 pmLHR-JFK
12h 05m1 stop
$482Multiple Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
Iberia Logo
6:25 pm - 6:20 amJFK-LHR
6h 55mnonstop
Iberia Logo
10:45 am - 7:15 pmLHR-JFK
13h 30m1 stop
$491Iberia
Find Deal
Thu, Dec 4 - Sun, Dec 14
Iberia Logo
10:15 am - 10:10 pmJFK-LHR
6h 55mnonstop
Iberia Logo
10:45 am - 7:15 pmLHR-JFK
13h 30m1 stop
$492Iberia
Find Deal
Fri, Dec 5 - Sun, Dec 14
United Airlines Logo
10:05 am - 7:10 amJFK-LHR
16h 05m1 stop
United Airlines Logo
9:00 am - 4:40 pmLHR-JFK
12h 40m1 stop
$494United Airlines
Find Deal
Fri, Dec 5 - Wed, Dec 10
United Airlines Logo
4:50 pm - 8:35 pmJFK-LHR
22h 45m2 stops
United Airlines Logo
8:30 am - 8:58 pmLHR-JFK
41h 28m2 stops
$495United Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Delta Logo
10:00 pm - 10:15 amJFK-LHR
7h 15mnonstop
Delta Logo
6:30 am - 3:45 pmLHR-JFK
14h 15m1 stop
$503Delta
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Mon, Nov 17 - Mon, Nov 24
Delta Logo
11:55 pm - 11:25 amBOS-LHR
6h 30mnonstop
Delta Logo
6:20 am - 1:40 pmLHR-BOS
12h 20m1 stop
$504Delta
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Wed, Nov 19 - Thu, Nov 27
British Airways Logo
10:15 am - 10:10 pmJFK-LHR
6h 55mnonstop
British Airways Logo
10:45 am - 7:15 pmLHR-JFK
13h 30m1 stop
$509British Airways
Find Deal
Fri, Dec 5 - Sun, Dec 14
British Airways Logo
7:50 pm - 6:45 amJFK-LHR
6h 55mnonstop
British Airways Logo
8:20 am - 12:20 pmLHR-JFK
8h 00mnonstop
$519British Airways
Find Deal
Sun, Mar 8 - Fri, Mar 20

Finnair flights from United States to London

Our best Finnair deals on United States to London flight tickets
Finnair
Nov 14
BOS7:25 pmBoston Logan Intl
6h 35m
LHR7:00 amLondon Heathrow
Dec 5
LHR1:30 pmLondon Heathrow
7h 30m
BOS4:00 pmBoston Logan Intl
$503
Find similar
Finnair
Nov 17
JFK10:15 amNew York John F Kennedy Intl
6h 55m
LHR10:10 pmLondon Heathrow
Nov 24
LHR5:00 pmLondon Heathrow
8h 05m
JFK8:05 pmNew York John F Kennedy Intl
$504
Find similar
Finnair
Dec 3
BOS7:15 pmBoston Logan Intl
6h 45m
LHR7:00 amLondon Heathrow
Dec 10
LHR1:30 pmLondon Heathrow
7h 30m
BOS4:00 pmBoston Logan Intl
$508
Find similar

Brussels Airlines flights from United States to London

Our best Brussels Airlines deals on United States to London flight tickets
Brussels Airlines
Nov 9
JFK6:25 pmNew York John F Kennedy Intl
17h 40m
1 stop
LHR5:05 pmLondon Heathrow
Nov 22
LHR6:50 amLondon Heathrow
11h 30m
1 stop
JFK1:20 pmNew York John F Kennedy Intl
$529
Find similar
Brussels Airlines
Nov 14
BOS8:40 pmBoston Logan Intl
19h 40m
2 stops
LHR9:20 pmLondon Heathrow
Nov 22
LHR6:50 amLondon Heathrow
13h 02m
2 stops
BOS2:52 pmBoston Logan Intl
$542
Find similar

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 November 6, 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

LGA - LHR

LGALHR

New York LaGuardia

Wed 11/19

12:45 pm-11:20 am

1 stop17h 35m

London Heathrow

Tue 11/25

9:00 am-9:33 pm

2 stops17h 33m

$482

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 12/5

10:05 am-7:10 am

1 stop16h 05m

London Heathrow

Fri 12/12

6:00 am-1:05 pm

1 stop12h 05m

$482

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 12/4

6:25 pm-6:20 am

Nonstop6h 55m

London Heathrow

Sun 12/14

10:45 am-7:15 pm

1 stop13h 30m

$491

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 12/5

10:15 am-10:10 pm

Nonstop6h 55m

London Heathrow

Sun 12/14

10:45 am-7:15 pm

1 stop13h 30m

$492

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 12/5

10:05 am-7:10 am

1 stop16h 05m

London Heathrow

Wed 12/10

9:00 am-4:40 pm

1 stop12h 40m

$494

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 12/5

4:50 pm-8:35 pm

2 stops22h 45m

London Heathrow

Sun 12/7

8:30 am-8:58 pm

2 stops41h 28m

$495

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 11/17

10:00 pm-10:15 am

Nonstop7h 15m

London Heathrow

Mon 11/24

6:30 am-3:45 pm

1 stop14h 15m

$503

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/19

11:55 pm-11:25 am

Nonstop6h 30m

London Heathrow

Thu 11/27

6:20 am-1:40 pm

1 stop12h 20m

$504

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 12/5

10:15 am-10:10 pm

Nonstop6h 55m

London Heathrow

Sun 12/14

10:45 am-7:15 pm

1 stop13h 30m

$509

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 3/8

7:50 pm-6:45 am

Nonstop6h 55m

London Heathrow

Fri 3/20

8:20 am-12:20 pm

Nonstop8h 00m

$519

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 September is another great option to travel to London, with average flight prices from United States averaging around $506.

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 Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $633. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $675. 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 $673. 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 $612 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?

No. A direct flight is the cheapest option for a flight between United States to London.

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

$99

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 $99. The best round-trip flight deal from United States to London found on momondo in the last 72 hours is $401.
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)
Search flight deals

  • 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
2,907 reviews
Search JetBlue flights
Scandinavian AirlinesPriceFrom $213Free CancellationRating
7.4
1,561 reviews
Search Scandinavian Airlines flights
WestJetPriceFrom $272Free CancellationRating
7.2
3,154 reviews
Search WestJet flights
SWISSPriceFrom $290Free CancellationRating
7.5
1,779 reviews
Search SWISS flights
TAP AIR PORTUGALPriceFrom $293Free CancellationRating
7.1
2,046 reviews
Search TAP AIR PORTUGAL flights
Norse Atlantic UKPriceFrom $349Free CancellationRating
7.2
51 reviews
Search Norse Atlantic UK flights
PLAYPriceFrom $380Free CancellationRating
7.0
103 reviews
Search PLAY flights
Air CanadaPriceFrom $382Free CancellationRating
7.1
10,413 reviews
Search Air Canada flights
KLMPriceFrom $387Free CancellationRating
7.7
1,405 reviews
Search KLM flights
Air FrancePriceFrom $391Free CancellationRating
7.4
1,484 reviews
Search Air France flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Wembley
Folkestone
Romford
Ilford
Cobham
Stansted
Harrow
Watford

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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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
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport