Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from London to the United States from $351

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 to the United States departing on 9/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London to the United States

Cheap round-trip flights

Norse Atlantic UK Logo
1:00 pm - 3:55 pmLGW-JFK
7h 55mnonstop
Norse Atlantic UK Logo
6:05 pm - 6:00 amJFK-LGW
6h 55mnonstop
$419Norse Atlantic UK
Find Deal
Tue, Nov 4 - Mon, Nov 10
Logo
11:30 am - 3:45 pmSTN-JFK
33h 15m3 stops
Logo
5:35 pm - 11:20 pmJFK-STN
24h 45m2 stops
$419
Find Deal
Mon, Nov 17 - Thu, Nov 20
Aer Lingus Logo
1:25 pm - 7:20 pmLHR-JFK
10h 55m1 stop
Aer Lingus Logo
4:55 pm - 9:05 amJFK-LHR
11h 10m1 stop
$419Aer Lingus
Find Deal
Tue, Sep 23 - Tue, Sep 30
Iberia Logo
8:55 am - 2:30 pmLHR-JFK
10h 35m1 stop
Iberia Logo
9:45 am - 9:40 pmJFK-LHR
6h 55mnonstop
$425Iberia
Find Deal
Tue, Sep 9 - Tue, Sep 16
British Airways Logo
3:05 pm - 6:05 pmLGW-JFK
8h 00mnonstop
British Airways Logo
8:05 pm - 8:10 amJFK-LGW
7h 05mnonstop
$436British Airways
Find Deal
Tue, Oct 7 - Thu, Oct 16
British Airways Logo
3:05 pm - 6:05 pmLGW-JFK
8h 00mnonstop
British Airways Logo
8:05 pm - 8:10 amJFK-LGW
7h 05mnonstop
$437British Airways
Find Deal
Tue, Sep 23 - Tue, Sep 30
American Airlines Logo
3:05 pm - 6:05 pmLGW-JFK
8h 00mnonstop
American Airlines Logo
8:05 pm - 8:10 amJFK-LGW
7h 05mnonstop
$444American Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
American Airlines Logo
3:05 pm - 6:05 pmLGW-JFK
8h 00mnonstop
American Airlines Logo
8:05 pm - 8:10 amJFK-LGW
7h 05mnonstop
$458American Airlines
Find Deal
Thu, Sep 11 - Thu, Sep 18
Delta Logo
11:45 am - 7:05 pmLHR-JFK
12h 20m1 stop
Delta Logo
11:25 pm - 11:25 amJFK-LHR
7h 00mnonstop
$465Delta
Find Deal
Mon, Sep 8 - Mon, Sep 15
Delta Logo
9:20 am - 7:29 pmLCY-LGA
15h 09m2 stops
Delta Logo
1:59 pm - 7:15 amLGA-LCY
12h 16m2 stops
$520Delta
Find Deal
Tue, Sep 30 - Wed, Oct 22

Icelandair flights from London to United States

Our best Icelandair deals on London to United States flight tickets
Icelandair
Nov 4
LGW11:55 amLondon Gatwick
11h 05m
1 stop
JFK6:00 pmNew York John F Kennedy Intl
Nov 13
JFK7:25 pmNew York John F Kennedy Intl
10h 30m
1 stop
LGW10:55 amLondon Gatwick
$423
Find similar
Icelandair
Jan 7
LGW11:55 amLondon Gatwick
11h 05m
1 stop
JFK6:00 pmNew York John F Kennedy Intl
Jan 22
JFK7:25 pmNew York John F Kennedy Intl
10h 30m
1 stop
LGW10:55 amLondon Gatwick
$431
Find similar
Icelandair
Nov 3
LGW11:55 amLondon Gatwick
11h 05m
1 stop
JFK6:00 pmNew York John F Kennedy Intl
Nov 27
JFK7:25 pmNew York John F Kennedy Intl
10h 30m
1 stop
LGW10:55 amLondon Gatwick
$432
Find similar

Austrian Airlines flights from London to United States

Our best Austrian Airlines deals on London to United States flight tickets
Austrian Airlines
Sep 4
LHR12:00 pmLondon Heathrow
8h 10m
EWR3:10 pmNewark
Sep 9
EWR6:55 pmNewark
7h 20m
LHR7:15 amLondon Heathrow
$456
Find similar
Austrian Airlines
Oct 9
LHR10:25 amLondon Heathrow
14h 40m
1 stop
JFK8:05 pmNew York John F Kennedy Intl
Oct 12
JFK12:45 amNew York John F Kennedy Intl
15h 55m
1 stop
LHR9:40 pmLondon Heathrow
$457
Find similar
Austrian Airlines
Oct 10
LHR6:00 amLondon Heathrow
12h 55m
1 stop
EWR1:55 pmNewark
Oct 28
EWR9:00 pmNewark
7h 25m
LHR8:25 amLondon Heathrow
$472
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London 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 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from London to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Tue 11/4

1:00 pm-3:55 pm

Nonstop7h 55m

New York John F Kennedy Intl

Mon 11/10

6:05 pm-6:00 am

Nonstop6h 55m

$419

LondonNew York

STN - JFK

STNJFK

London Stansted

Mon 11/17

11:30 am-3:45 pm

3 stops33h 15m

New York John F Kennedy Intl

Thu 11/20

5:35 pm-11:20 pm

2 stops24h 45m

$419

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Tue 9/23

1:25 pm-7:20 pm

1 stop10h 55m

New York John F Kennedy Intl

Tue 9/30

4:55 pm-9:05 am

1 stop11h 10m

$419

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Tue 9/9

8:55 am-2:30 pm

1 stop10h 35m

New York John F Kennedy Intl

Tue 9/16

9:45 am-9:40 pm

Nonstop6h 55m

$425

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Tue 10/7

3:05 pm-6:05 pm

Nonstop8h 00m

New York John F Kennedy Intl

Thu 10/16

8:05 pm-8:10 am

Nonstop7h 05m

$436

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Tue 9/23

3:05 pm-6:05 pm

Nonstop8h 00m

New York John F Kennedy Intl

Tue 9/30

8:05 pm-8:10 am

Nonstop7h 05m

$437

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Wed 9/24

3:05 pm-6:05 pm

Nonstop8h 00m

New York John F Kennedy Intl

Tue 9/30

8:05 pm-8:10 am

Nonstop7h 05m

$444

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Thu 9/11

3:05 pm-6:05 pm

Nonstop8h 00m

New York John F Kennedy Intl

Thu 9/18

8:05 pm-8:10 am

Nonstop7h 05m

$458

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 9/8

11:45 am-7:05 pm

1 stop12h 20m

New York John F Kennedy Intl

Mon 9/15

11:25 pm-11:25 am

Nonstop7h 00m

$465

LondonNew York

LCY - LGA

LCYLGA

London City

Tue 9/30

9:20 am-7:29 pm

2 stops15h 09m

New York LaGuardia

Wed 10/22

1:59 pm-7:15 am

2 stops12h 16m

$520

Flights are sorted by cheapest round-trip 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 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?

In general, September is the cheapest month to fly from London to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $479. If you aren’t able to travel during the month of September, then book flights to United States from London during March instead. Flights to United States in March, while not as cheap as those in September, still average around $484.

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. The lowest ticket price found for a Wednesday departure recently was $572. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $691. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

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

The cheapest time of day to fly to United States is at noon when flights can be purchased for as low as $616. Try not to purchase tickets in the evening because they tend to be around $655. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London to United States flight route?

Fly from London Gatwick to Miami for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $590 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from London for as low as $527 on momondo.

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

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

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

Cheap London to United States flight deals and tips

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

Best Price Found

$212

Fastest flight time

7h 34m

Direct flights

Every day

Airports in United States

2 airports
The best one-way flight to United States from London in the past 72 hours is $212. The best round-trip flight deal from London to United States found on momondo in the last 72 hours is $432.
The fastest flight from London to United States takes 7h 34m
Direct flights go from London to United States every day.
There are 2 airports near United States: Newark (EWR), New York John F Kennedy Intl (JFK)
Search flight deals

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

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

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

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

Best airlines flying from London to United States

Compare and see reviews for airlines that fly from London to United States with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $187Free CancellationRating
7.2
2,920 reviews
Search JetBlue flights
Norse Atlantic UKPriceFrom $313Free CancellationRating
7.2
47 reviews
Search Norse Atlantic UK flights
Scandinavian AirlinesPriceFrom $341Free CancellationRating
7.4
1,481 reviews
Search Scandinavian Airlines flights
PLAYPriceFrom $352Free CancellationRating
7.0
103 reviews
Search PLAY flights
DeltaPriceFrom $355Free CancellationRating
7.9
7,977 reviews
Search Delta flights
TAP AIR PORTUGALPriceFrom $384Free CancellationRating
7.1
1,963 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $401Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
Aer LingusPriceFrom $412Free CancellationRating
7.2
1,239 reviews
Search Aer Lingus flights
IcelandairPriceFrom $414Free CancellationRating
7.0
534 reviews
Search Icelandair flights
KLMPriceFrom $428Free CancellationRating
7.8
1,382 reviews
Search KLM flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to United States. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo helps you find the best flight between London and United States 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 London to United States right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to United States now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United States and let you know when they change.

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 9/2
Tue 9/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $38
Flights to Los Angelesfrom $45
Flights to Miamifrom $52
Flights to Chicagofrom $46
Flights to Orlandofrom $39
Flights to Las Vegasfrom $38
Flights to San Franciscofrom $38
Flights to Washington, D.C.from $38
Flights to Bostonfrom $58
Flights to Atlantafrom $38
Flights to Dallasfrom $52
Flights to Seattlefrom $85