How long is the flight from USA to London Heathrow Airport?

Scandinavian Airlines, Icelandair, and United Airlines can get you from USA to London Heathrow Airport in just under 6h 55m. Your travel time can differ by up to 13h 20m. The distance between USA and London Heathrow Airport is about 3454 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?

For one-way options, check prices for Delta. According to our data, you can fly for as low as £65. Users have also found prices from £83 and £95 on TAP AIR PORTUGAL and JetBlue, respectively.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from USA to London Heathrow Airport?

The most popular flight routes from USA to London Heathrow Airport are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and Washington, D.C. Dulles Intl - London Heathrow.

What are the cheapest flights from USA to London Heathrow Airport?

The cheapest flight price from USA to London Heathrow Airport is £229. On average you can expect to pay £1,392. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £340.

What are the most reliable airlines from USA to London Heathrow Airport?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from USA to London Heathrow Airport on time: SAUDIA (92%), Air Canada (90%), Austrian Airlines (90%).

What are the most popular airlines that fly from USA to London Heathrow Airport?

The most popular airlines flying from USA to London Heathrow Airport are British Airways, Virgin Atlantic and United Airlines. Something to consider prior to booking your flight.

Can I find deals for flights from USA to Heathrow that include hotel bookings?

Yes. In addition to deals on USA to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from USA to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Heathrow.

Can I find deals for business class flights from USA to Heathrow?

Yes. Cheapflights offers flight deals from USA to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£151+ Cheap Flights from the United States to London Heathrow Airport

Cheap flight deals from USA to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from USA to Heathrow
Explore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2026.

Fri 9/1018:55 -

2 stops37h 00m

Mon 12/1010:20 -

2 stops34h 20m

Deal found 23/8£391

Thu 1/1018:55 -

2 stops33h 40m

Sun 4/1006:40 -

2 stops15h 20m

Deal found 24/8£392

Fri 2/1018:55 -

2 stops33h 00m

Mon 5/1006:40 -

1 stop15h 20m

Deal found 23/8£392

Sat 3/1020:30 -

1 stop10h 25m

Fri 9/1006:20 -

1 stop12h 20m

Deal found 21/8£393

Fri 25/922:00 -

Nonstop7h 20m

Sat 3/1009:50 -

1 stop12h 05m

Deal found 21/8£394

Fri 23/1018:55 -

1 stop34h 25m

Mon 26/1006:40 -

2 stops14h 05m

Deal found 23/8£399

Fri 18/917:10 -

2 stops35h 10m

Mon 21/906:40 -

2 stops38h 00m

Deal found 23/8£400

Fri 13/1117:35 -

2 stops14h 20m

Sun 15/1106:40 -

1 stop14h 05m

Deal found 22/8£403

Fri 16/1020:30 -

1 stop10h 25m

Sun 18/1020:50 -

2 stops21h 50m

Deal found 21/8£405

Fri 4/1219:30 -

2 stops30h 05m

Mon 7/1206:40 -

1 stop18h 20m

Deal found 21/8£436

Thu 5/1119:30 -

2 stops30h 05m

Sun 8/1106:40 -

1 stop18h 20m

Deal found 22/8£436

Fri 2/1019:10 -

2 stops33h 45m

Mon 5/1006:40 -

1 stop18h 10m

Deal found 21/8£438

Best flights from USA to Heathrow
Discover carefully curated flight deals from USA to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Tue 3/1117:35 -

2 stops20h 15m

Tue 10/1107:05 -

2 stops13h 35m

Deal found 22/8£478

Sun 1/1119:40 -

1 stop10h 10m

Sun 8/1112:15 -

1 stop11h 15m

Deal found 23/8£508

Tue 24/1109:25 -

Nonstop6h 55m

Wed 25/1107:30 -

1 stop11h 25m

Deal found 25/8£565

Tue 15/909:35 -

Nonstop6h 50m

Sun 20/920:05 -

1 stop29h 10m

Deal found 21/8£589

Tue 10/1120:05 -

Nonstop7h 05m

Sun 15/1110:20 -

1 stop13h 45m

Deal found 23/8£592

Mon 7/919:05 -

Nonstop6h 40m

Sat 12/911:45 -

1 stop11h 45m

Deal found 22/8£598

Sat 5/920:15 -

Nonstop7h 35m

Sat 19/914:45 -

1 stop11h 00m

Deal found 24/8£598

Thu 17/918:00 -

Nonstop7h 20m

Mon 21/906:15 -

1 stop11h 40m

Deal found 22/8£598

Thu 1/1021:30 -

1 stop18h 55m

Thu 15/1006:30 -

1 stop19h 05m

Deal found 21/8£667

Mon 2/1118:55 -

Nonstop7h 10m

Sun 8/1113:50 -

Nonstop8h 15m

Deal found 20/8£690

Tue 22/916:25 -

Nonstop8h 20m

Tue 13/1007:25 -

1 stop12h 40m

Deal found 24/8£802

Wed 23/912:55 -

1 stop12h 00m

Tue 13/1006:00 -

1 stop13h 20m

Deal found 24/8£815

Wed 2/1218:30 -

2 stops17h 20m

Thu 10/1220:05 -

2 stops22h 05m

Deal found 21/8£819

Thu 17/915:25 -

1 stop21h 20m

Sun 20/908:40 -

1 stop32h 30m

Deal found 25/8£884

Sun 31/117:35 -

1 stop10h 45m

Sun 21/218:40 -

1 stop26h 05m

Deal found 25/8£515

Wed 14/1020:30 -

1 stop10h 25m

Wed 4/1112:15 -

1 stop11h 25m

Deal found 22/8£566

Wed 28/1020:30 -

1 stop18h 10m

Mon 2/1107:05 -

2 stops17h 55m

Deal found 22/8£516

Wed 11/1120:00 -

Nonstop7h 25m

Sun 15/1112:05 -

1 stop13h 25m

Deal found 22/8£590

Wed 30/909:35 -

Nonstop7h 05m

Fri 16/1007:30 -

1 stop16h 40m

Deal found 23/8£592

Thu 1/1018:30 -

Nonstop7h 15m

Fri 9/1008:55 -

1 stop11h 55m

Deal found 23/8£598

Sat 5/920:15 -

Nonstop7h 35m

Sat 26/911:20 -

Nonstop7h 45m

Deal found 20/8£603

Mon 28/915:30 -

1 stop13h 30m

Sun 4/1009:30 -

1 stop15h 06m

Deal found 21/8£608

Thu 22/1012:59 -

1 stop13h 16m

Thu 5/1108:40 -

2 stops13h 50m

Deal found 24/8£609

Thu 10/1216:45 -

2 stops19h 10m

Mon 14/1206:40 -

1 stop16h 10m

Deal found 24/8£518

Mon 2/1122:00 -

Nonstop7h 25m

Mon 9/1112:05 -

1 stop13h 25m

Deal found 25/8£590

Wed 16/908:15 -

Nonstop6h 55m

Tue 22/911:45 -

1 stop12h 30m

Deal found 24/8£598

Sat 26/921:30 -

Nonstop6h 45m

Fri 2/1009:40 -

Nonstop7h 41m

Deal found 25/8£603

Wed 11/1120:20 -

1 stop31h 25m

Wed 25/1106:25 -

1 stop18h 00m

Deal found 24/8£668

Fri 2/1017:40 -

1 stop11h 20m

Thu 8/1014:05 -

1 stop10h 31m

Deal found 23/8£608

Mon 8/216:45 -

2 stops18h 05m

Tue 16/219:50 -

2 stops27h 00m

Deal found 22/8£519

Find flight deals from USA to Heathrow

Round-trip from	£391
One-way from	£151
Popular in	June
Cheapest in	January
Average price	£548
Good round-trip deal	£228 or less
Good one-way deal	£208 or less

Scandinavian Airlines
9/10-12/10
4 total stops
71h 20m total
USA to London

Search Deals

British Airways
4/11
1 total stop
12h 16m total
USA to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£92 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a round-trip flight from USA to London Heathrow.

Search Deals

Price to beat on a one-way flight from USA to London Heathrow.

Search Deals

Cheapflights 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

Cheapest return flight

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Tue 3/11

17:35-18:50

2 stops20h 15m

London Heathrow

Tue 10/11

07:05-15:40

2 stops13h 35m

£478

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Sun 1/11

19:40-10:50

1 stop10h 10m

London Heathrow

Sun 8/11

12:15-18:30

1 stop11h 15m

£508

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sun 31/1

17:35-09:20

1 stop10h 45m

London Heathrow

Sun 21/2

18:40-15:45

1 stop26h 05m

£515

Los AngelesLondon

LAX Los Angeles Los Angeles - LHR London Heathrow

LAXLHR

Los Angeles Los Angeles

Wed 28/10

20:30-21:40

1 stop18h 10m

London Heathrow

Mon 2/11

07:05-17:00

2 stops17h 55m

£516

San FranciscoLondon

SFO San Francisco - LHR London Heathrow

SFOLHR

San Francisco

Thu 10/12

16:45-19:55

2 stops19h 10m

London Heathrow

Mon 14/12

06:40-14:50

1 stop16h 10m

£518

San FranciscoLondon

SFO San Francisco - LHR London Heathrow

SFOLHR

San Francisco

Mon 8/2

16:45-18:50

2 stops18h 05m

London Heathrow

Tue 16/2

19:50-14:50

2 stops27h 00m

£519

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Tue 24/11

09:25-21:20

Nonstop6h 55m

London Heathrow

Wed 25/11

07:30-13:55

1 stop11h 25m

£565

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Wed 14/10

20:30-11:55

1 stop10h 25m

London Heathrow

Wed 4/11

12:15-18:40

1 stop11h 25m

£566

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Tue 15/9

09:35-21:25

Nonstop6h 50m

London Heathrow

Sun 20/9

20:05-20:15

1 stop29h 10m

£589

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Wed 11/11

20:00-08:25

Nonstop7h 25m

London Heathrow

Sun 15/11

12:05-20:30

1 stop13h 25m

£590

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from USA to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from USA with our price prediction graph.

BOS-LHR

IAD-LHR

EWR-LHR

JFK-LHR

DFW-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to London Heathrow Airport

US0-LHR

BOS-LHR

IAD-LHR

EWR-LHR

JFK-LHR

What is the cheapest month to book a flight from USA to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £496). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £959). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from US to LHR?

A simple way to save on the total cost of your ticket is to fly from USA to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at midday.

Weekly flight availability from USA to London Heathrow Airport

The most flights from US0 to LHR are scheduled on a Monday (57 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (52 on average).

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

About 16% of weekly flights between United States and London have experienced delays in the past year, with the average delay time being 161 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 11% of flights being delayed.

How far ahead should I book a flight from USA to London Heathrow Airport?

The best time to book flights from USA to London Heathrow Airport is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from USA to London Heathrow Airport?

Travellers seeking maximum savings on their USA to London Heathrow Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with KLM,United Airlines, andVirgin Atlantic from the United States to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,565 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

KLM

7.8

Good

1,565 reviews

KLM

7.8

Good

1,565 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

United Airlines

7.4

Good

10,127 reviews

KLM

7.8

Good

1,565 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Virgin Atlantic

7.4

Good

695 reviews

KLM

7.8

Good

1,565 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

American Airlines

7.1

Good

11,995 reviews

KLM

7.8

Good

1,565 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

British Airways

6.7

Okay

8,193 reviews

KLM

7.8

Good

1,565 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Related info for your journey

How long is the flight from USA to London Heathrow Airport?
Scandinavian Airlines, Icelandair, and United Airlines can get you from USA to London Heathrow Airport in just under 6h 55m. Your travel time can differ by up to 13h 20m. The distance between USA and London Heathrow Airport is about 3454 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?
For one-way options, check prices for Delta. According to our data, you can fly for as low as £65. Users have also found prices from £83 and £95 on TAP AIR PORTUGAL and JetBlue, respectively.
What are the most popular routes from USA to London Heathrow Airport?
The most popular flight routes from USA to London Heathrow Airport are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and Washington, D.C. Dulles Intl - London Heathrow.
What are the most reliable airlines from USA to London Heathrow Airport?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from USA to London Heathrow Airport on time: SAUDIA (92%), Air Canada (90%), Austrian Airlines (90%).
What are the cheapest flights from USA to London Heathrow Airport?
The cheapest flight price from USA to London Heathrow Airport is £229. On average you can expect to pay £1,392. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £340.
Can I find deals for flights from USA to Heathrow that include hotel bookings?
Yes. In addition to deals on USA to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from USA to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Heathrow.
Can I find deals for business class flights from USA to Heathrow?
Yes. Cheapflights offers flight deals from USA to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from USA to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £496). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £959). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 10 airlines flying from USA to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£192	Average£772	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
KLM	Cheapest£230	Average£688	FlexibilityNo cancel fee	On-time75%	Search KLM flights
JetBlue	Cheapest£231	Average£561	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
TAP AIR PORTUGAL	Cheapest£233	Average£471	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Aer Lingus	Cheapest£306	Average£476	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Virgin Atlantic	Cheapest£314	Average£659	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£316	Average£671	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£327	Average£699	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Lufthansa	Cheapest£347	Average£697	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air France	Cheapest£353	Average£729	FlexibilityNo cancel fee	On-time77%	Search Air France flights

Fly with Cheapflights

How does Cheapflights help users find flights from USA to Heathrow?

Cheapflights makes it easy to find USA to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from USA to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from USA to Heathrow.

Can Cheapflights find flights from USA to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from USA shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from USA to Heathrow become cheaper?

Of course! You can now track prices for flights from USA to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from the United States to London Heathrow Airport from £151

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from USA to Heathrow

Cheapest flights from USA to HeathrowExplore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2026.

Explore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2026.

Best flights from USA to HeathrowDiscover carefully curated flight deals from USA to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Discover carefully curated flight deals from USA to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Direct flights from USA to HeathrowExplore direct flight options from USA to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 August 2026.

Explore direct flight options from USA to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 August 2026.

Last-minute flights from USA to HeathrowDiscover last-minute flight deals from USA to Heathrow. Data last updated 26 August 2026 and is based on user searches.

Discover last-minute flight deals from USA to Heathrow. Data last updated 26 August 2026 and is based on user searches.

One-way flights from USA to HeathrowSearch for one-way flight options from USA to Heathrow. Find affordable one-way fares based on user searches. Data last updated 26 August 2026.

Search for one-way flight options from USA to Heathrow. Find affordable one-way fares based on user searches. Data last updated 26 August 2026.

Find flight deals from USA to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from USA to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from USA with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from USA to London Heathrow Airport?

What is the cheapest time of day to fly from US to LHR?

Find hourly flight availability from USA to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 August 2026.

A simple way to save on the total cost of your ticket is to fly from USA to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at midday.

Weekly flight availability from USA to London Heathrow Airport

Explore weekly flight availability from USA to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 26 August 2026.

The most flights from US0 to LHR are scheduled on a Monday (57 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (52 on average).

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

About 16% of weekly flights between United States and London have experienced delays in the past year, with the average delay time being 161 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 11% of flights being delayed.

How far ahead should I book a flight from USA to London Heathrow Airport?

The best time to book flights from USA to London Heathrow Airport is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from USA to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from USA to Heathrow. Price data was last updated on 22 August 2026.

Travellers seeking maximum savings on their USA to London Heathrow Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Heathrow

Related info for your journey

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What is the cheapest month to book a flight from USA to London Heathrow Airport?

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Alternative routes for USA to Heathrow

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Direct flights to England

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 August 2026.

USA and Heathrow flights

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Cheapest flights from USA to Heathrow
Explore the most affordable flight options available from USA to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2026.

Best flights from USA to Heathrow
Discover carefully curated flight deals from USA to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 August 2026.

Direct flights from USA to Heathrow
Explore direct flight options from USA to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 August 2026.

Last-minute flights from USA to Heathrow
Discover last-minute flight deals from USA to Heathrow. Data last updated 26 August 2026 and is based on user searches.

One-way flights from USA to Heathrow
Search for one-way flight options from USA to Heathrow. Find affordable one-way fares based on user searches. Data last updated 26 August 2026.