What is the cheapest airline that flies from United States to London Heathrow?

United Airlines, TAP AIR PORTUGAL, and Lufthansa are the most popular carriers operating from United States to London Heathrow

How many flights depart from United States to London Heathrow Airport on average per week?

2,260 flights are operational weekly from United States to London Heathrow Airport as of December 2025. The most popular departure day for this route is Thu, with 15% of flights per week taking off on this day.

What is the most punctual flight time for the United States to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

How long does it take to fly to London Heathrow Airport?

On average, it takes 6h 30m to fly from United States to London Heathrow Airport if you fly out of Boston (the most popular airport in United States) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of New York and into London Heathrow Airport, then the flight time is around 6h 50m.

What airlines fly to London Heathrow Airport?

British Airways, United Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from United States according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 24 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to London flights?

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

How many flights depart from United States to London Heathrow Airport on average per day?

As of December 2025, there are 322 flights per day flying from United States to London Heathrow Airport. The most common time of day flights depart is 5:00PM, with 71% of flights taking off in the evening.

How often are flights from the United States to London delayed?

Historically, on average around 17% of flights between United States and London have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

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

As of December 2025, there are 22 operators available to choose from 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.

$167 Cheap Flights from United States to London Heathrow Airport in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from the United States to London

Round-trip

One-way

Last minute

Direct

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

Enter your travel dates to find the best prices.

5:55 pm - 2:05 pm

EWR

LHR

15h 10m1 stop

6:00 am - 1:55 pm

LHR

EWR

12h 55m1 stop

$493Austrian Airlines

Wed, Feb 11 - Mon, Feb 16

9:35 pm - 9:30 am

EWR

LHR

6h 55mnonstop

10:40 am - 2:50 pm

LHR

EWR

8h 10mnonstop

$494British Airways

Wed, Feb 25 - Mon, Mar 9

2:47 pm - 9:20 am

EWR

LHR

13h 33m1 stop

12:05 pm - 8:30 pm

LHR

EWR

13h 25m1 stop

$495United Airlines

Wed, Dec 31 - Mon, Jan 12

3:30 pm - 7:10 am

EWR

LHR

10h 40m1 stop

12:05 pm - 8:30 pm

LHR

EWR

13h 25m1 stop

$498United Airlines

Wed, Dec 31 - Sat, Jan 17

8:00 pm - 7:50 am

BOS

LHR

6h 50mnonstop

11:45 am - 6:30 pm

LHR

BOS

11h 45m1 stop

$507Delta

Wed, Dec 31 - Sun, May 10

8:20 am - 8:10 pm

JFK

LHR

6h 50mnonstop

6:30 am - 1:15 pm

LHR

JFK

11h 45m1 stop

$507Delta

Wed, Dec 31 - Sun, Feb 15

1:30 pm - 6:25 am

BOS

LHR

11h 55m1 stop

9:40 am - 1:25 pm

LHR

BOS

7h 45mnonstop

$509Virgin Atlantic

Mon, Jan 12 - Sun, Mar 22

6:30 pm - 10:50 am

ORD

LHR

10h 20m1 stop

1:05 pm - 6:15 pm

LHR

ORD

11h 10m1 stop

$558Icelandair

Thu, Jan 8 - Tue, Apr 28

6:30 pm - 10:50 am

ORD

LHR

10h 20m1 stop

12:15 pm - 5:20 pm

LHR

ORD

11h 05m1 stop

$564Icelandair

Tue, Feb 3 - Thu, Feb 12

10:20 pm - 10:50 am

IAD

LHR

7h 30mnonstop

8:55 am - 4:35 pm

LHR

IAD

12h 40m1 stop

$584Virgin Atlantic

Tue, Jan 6 - Thu, Jan 15

British Airways flights from United States to London Heathrow Airport

Our best British Airways deals on United States to London Heathrow Airport flight tickets

British Airways

Feb 25

EWR9:35 pmNewark

6h 55m

LHR9:30 amLondon Heathrow

Mar 1

LHR10:40 amLondon Heathrow

8h 10m

EWR1:50 pmNewark

$494

Find similar

British Airways

Mar 17

EWR7:35 pmNewark

6h 55m

LHR6:30 amLondon Heathrow

Mar 31

LHR9:15 amLondon Heathrow

12h 17m

1 stop

EWR4:32 pmNewark

$500

Find similar

British Airways

Mar 3

EWR6:35 pmNewark

6h 55m

LHR6:30 amLondon Heathrow

Mar 9

LHR10:40 amLondon Heathrow

8h 10m

EWR2:50 pmNewark

$505

Find similar

United Airlines flights from United States to London Heathrow Airport

Our best United Airlines deals on United States to London Heathrow Airport flight tickets

United Airlines

Dec 31

EWR10:40 pmNewark

7h 25m

LHR11:05 amLondon Heathrow

Jan 12

LHR12:05 pmLondon Heathrow

13h 25m

1 stop

EWR8:30 pmNewark

$495

Find similar

United Airlines

Dec 6

EWR9:10 amNewark

7h 10m

LHR9:20 pmLondon Heathrow

Dec 9

LHR9:00 amLondon Heathrow

16h 30m

1 stop

EWR8:30 pmNewark

$496

Find similar

United Airlines

Dec 31

EWR3:30 pmNewark

10h 40m

1 stop

LHR7:10 amLondon Heathrow

Jan 17

LHR12:05 pmLondon Heathrow

13h 25m

1 stop

EWR8:30 pmNewark

$498

Find similar

momondo Fare Finder

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

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 2/11

5:55 pm-2:05 pm

1 stop15h 10m

London Heathrow

Mon 2/16

6:00 am-1:55 pm

1 stop12h 55m

$493

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 2/25

9:35 pm-9:30 am

Nonstop6h 55m

London Heathrow

Mon 3/9

10:40 am-2:50 pm

Nonstop8h 10m

$494

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 12/31

2:47 pm-9:20 am

1 stop13h 33m

London Heathrow

Mon 1/12

12:05 pm-8:30 pm

1 stop13h 25m

$495

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 12/31

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

Sat 1/17

12:05 pm-8:30 pm

1 stop13h 25m

$498

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 12/31

8:00 pm-7:50 am

Nonstop6h 50m

London Heathrow

Sun 5/10

11:45 am-6:30 pm

1 stop11h 45m

$507

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 12/31

8:20 am-8:10 pm

Nonstop6h 50m

London Heathrow

Sun 2/15

6:30 am-1:15 pm

1 stop11h 45m

$507

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 1/12

1:30 pm-6:25 am

1 stop11h 55m

London Heathrow

Sun 3/22

9:40 am-1:25 pm

Nonstop7h 45m

$509

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 1/8

6:30 pm-10:50 am

1 stop10h 20m

London Heathrow

Tue 4/28

1:05 pm-6:15 pm

1 stop11h 10m

$558

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 2/3

6:30 pm-10:50 am

1 stop10h 20m

London Heathrow

Thu 2/12

12:15 pm-5:20 pm

1 stop11h 05m

$564

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 1/6

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Thu 1/15

8:55 am-4:35 pm

1 stop12h 40m

$584

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Other information

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 $537. If you’re not able to fly to London Heathrow Airport in October, then September is your next best option. Flight prices from United States to London Heathrow Airport during September average around $543.

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 $649. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $692.

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 at noon. momondo users have found flights departing from United States to London Heathrow Airport at noon for as low as $586. 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 Newark 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 $565 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.

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	$259
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 $259. The best round-trip flight deal from United States to London Heathrow Airport found on momondo in the last 72 hours is $531.

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?
As of December 2025, there are 22 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from United States to London Heathrow Airport is Boeing 777, representing 22.05% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 14.77%, Boeing 777-300ER at 12.21%, and Boeing 777-200/200ER at 9.27%.

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
JetBlue	PriceFrom $51	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Scandinavian Airlines	PriceFrom $213	Free Cancellation	Rating 7.4 1,592 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $293	Free Cancellation	Rating 7.1 2,081 reviews	Search TAP AIR PORTUGAL flights
SWISS	PriceFrom $300	Free Cancellation	Rating 7.5 1,804 reviews	Search SWISS flights
Virgin Atlantic	PriceFrom $331	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Norse Atlantic UK	PriceFrom $363	Free Cancellation	Rating 7.2 51 reviews	Search Norse Atlantic UK flights
Lufthansa	PriceFrom $370	Free Cancellation	Rating 6.8 7,612 reviews	Search Lufthansa flights
Air Canada	PriceFrom $382	Free Cancellation	Rating 7.1 10,500 reviews	Search Air Canada flights
KLM	PriceFrom $388	Free Cancellation	Rating 7.7 1,430 reviews	Search KLM flights
Delta	PriceFrom $397	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Stratford-upon-Avon

Crawley

Brentwood

Salisbury

Wembley

Romford

Watford

Ilford

Cobham

Folkestone

Uxbridge

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

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

Sat 1/3

Sat 1/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $328

Flights to London City Airportfrom $440

Flights to London Stansted Airportfrom $342

Flights to London Luton Airportfrom $358

Flights to London Southend Airportfrom $394

Flights to Glasgow Intl Airportfrom $396

Flights to Belfast Intl Airportfrom $441

Flights to Belfast City Airportfrom $489

Cheap flights from the United States to London from $167

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 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United States to London

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

Recent one-way flight deals from the United States to London

Recent last minute flight deals from the United States to London

Recent direct flight deals from the United States to London

British Airways flights from United States to London Heathrow Airport

Our best British Airways deals on United States to London Heathrow Airport flight tickets

United Airlines flights from United States to London Heathrow Airport

Our best United Airlines deals on United States to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from the United States to London Heathrow Airport that are best for you.

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?

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 $649. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $692.

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

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

Fly from Newark 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?

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.

What is the cheapest airline that flies from United States to London Heathrow?

United Airlines, TAP AIR PORTUGAL, and Lufthansa are the most popular carriers operating from United States to London Heathrow

What airlines fly to London Heathrow Airport?

How often are flights from the United States to London delayed?

Historically, on average around 17% of flights between United States and London have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

What is the most punctual flight time for the United States to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to London flights?

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

How many flights depart from United States to London Heathrow Airport on average per day?

As of December 2025, there are 322 flights per day flying from United States to London Heathrow Airport. The most common time of day flights depart is 5:00PM, with 71% of flights taking off in the evening.

How many flights depart from United States to London Heathrow Airport on average per week?

2,260 flights are operational weekly from United States to London Heathrow Airport as of December 2025. The most popular departure day for this route is Thu, with 15% of flights per week taking off on this day.

How long does it take to fly to London Heathrow Airport?

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

Fastest flight time

Direct flights

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

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?

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

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

Traveling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Heathrow Airport 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo