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

Scandinavian Airlines, Virgin Atlantic, and Finnair can get you from USA to London Heathrow Airport in just under 7h 20m. Your travel time can differ by up to 7h 25m. The distance between USA and London Heathrow Airport is about 3440 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 £66. Users have also found prices from £84 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 £257. On average you can expect to pay £1,593. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £348.

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 (90%), Delta (90%), Virgin Atlantic (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.

£153+ 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 9 September 2026.

Thu 31/1219:25 -

1 stop10h 25m

Sun 17/112:15 -

1 stop10h 45m

Deal found 7/9£442

Wed 11/1117:35 -

2 stops59h 00m

Sun 15/1106:40 -

1 stop14h 05m

Deal found 6/9£443

Sun 6/1219:25 -

1 stop19h 05m

Mon 21/1212:15 -

1 stop10h 25m

Deal found 6/9£444

Mon 14/1219:25 -

1 stop10h 25m

Tue 22/1212:15 -

1 stop10h 25m

Deal found 4/9£444

Thu 15/1017:10 -

1 stop11h 25m

Thu 29/1017:00 -

1 stop27h 45m

Deal found 8/9£445

Thu 5/1123:45 -

1 stop15h 20m

Wed 11/1120:50 -

1 stop30h 10m

Deal found 5/9£446

Sat 19/918:55 -

2 stops17h 05m

Mon 21/907:05 -

1 stop13h 35m

Deal found 8/9£447

Sun 13/1219:25 -

1 stop10h 25m

Sun 20/1220:35 -

1 stop26h 25m

Deal found 6/9£448

Fri 23/1022:05 -

2 stops17h 00m

Tue 3/1120:50 -

2 stops28h 15m

Deal found 9/9£449

Sun 25/1020:25 -

1 stop10h 25m

Thu 3/1212:15 -

1 stop10h 45m

Deal found 5/9£449

Fri 25/919:10 -

Nonstop7h 10m

Tue 29/916:35 -

Nonstop8h 05m

Deal found 7/9£450

Mon 19/1016:00 -

1 stop12h 15m

Sat 31/1011:30 -

2 stops16h 03m

Deal found 9/9£468

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 9 September 2026.

Tue 17/1118:25 -

Nonstop6h 55m

Tue 24/1110:20 -

1 stop13h 45m

Deal found 9/9£474

Sun 27/918:00 -

Nonstop7h 20m

Thu 15/1011:45 -

1 stop12h 30m

Deal found 9/9£491

Fri 16/1015:35 -

1 stop9h 55m

Fri 23/1008:40 -

1 stop16h 15m

Deal found 9/9£522

Sat 7/1117:35 -

1 stop19h 05m

Sat 14/1117:30 -

2 stops27h 15m

Deal found 4/9£522

Wed 16/1219:10 -

Nonstop6h 40m

Wed 30/1206:30 -

1 stop12h 50m

Deal found 9/9£534

Tue 13/1022:05 -

Nonstop7h 35m

Tue 20/1008:40 -

1 stop11h 55m

Deal found 9/9£535

Mon 14/1218:35 -

1 stop31h 35m

Thu 17/1206:00 -

1 stop19h 20m

Deal found 5/9£544

Sun 25/1020:10 -

Nonstop6h 45m

Sun 1/1108:15 -

1 stop13h 44m

Deal found 9/9£558

Thu 1/1017:50 -

Nonstop7h 00m

Fri 9/1011:00 -

Nonstop7h 55m

Deal found 9/9£606

Sun 17/120:10 -

1 stop11h 50m

Fri 29/109:00 -

1 stop13h 00m

Deal found 7/9£643

Thu 24/921:40 -

1 stop18h 25m

Sun 27/906:30 -

1 stop34h 00m

Deal found 4/9£709

Tue 8/1217:20 -

1 stop13h 20m

Fri 8/116:40 -

Nonstop8h 10m

Deal found 9/9£521

Sat 17/1017:50 -

1 stop18h 50m

Sat 24/1015:35 -

2 stops30h 10m

Deal found 9/9£532

Tue 20/1013:50 -

1 stop10h 55m

Tue 27/1011:45 -

1 stop32h 40m

Deal found 9/9£538

Thu 14/109:25 -

Nonstop6h 55m

Sun 17/109:00 -

1 stop16h 30m

Deal found 9/9£563

Thu 24/918:00 -

Nonstop7h 20m

Mon 5/1016:20 -

Nonstop8h 20m

Deal found 9/9£569

Wed 14/1012:37 -

2 stops15h 38m

Mon 19/1011:15 -

1 stop17h 29m

Deal found 9/9£590

Wed 7/1016:50 -

1 stop11h 55m

Mon 12/1008:55 -

1 stop12h 15m

Deal found 9/9£595

Mon 5/1016:00 -

1 stop9h 45m

Sun 11/1016:20 -

1 stop11h 05m

Deal found 8/9£543

Sun 11/1018:55 -

2 stops21h 25m

Mon 19/1019:30 -

2 stops49h 10m

Deal found 8/9£548

Sat 24/1009:35 -

Nonstop7h 05m

Sat 31/1010:20 -

1 stop13h 45m

Deal found 9/9£550

Wed 3/208:45 -

Nonstop7h 07m

Mon 8/208:05 -

Nonstop8h 25m

Deal found 8/9£607

Sun 25/1007:15 -

1 stop10h 05m

Sun 1/1107:40 -

2 stops15h 54m

Deal found 9/9£565

Wed 21/1021:30 -

Nonstop7h 20m

Wed 28/1009:55 -

1 stop12h 29m

Deal found 6/9£665

Fri 25/919:00 -

Nonstop7h 15m

Thu 1/1011:20 -

Nonstop7h 55m

Deal found 8/9£606

Sun 21/221:15 -

Nonstop7h 15m

Sun 28/207:45 -

Nonstop8h 20m

Deal found 5/9£607

Sun 18/1015:30 -

1 stop13h 30m

Thu 29/1013:00 -

1 stop12h 30m

Deal found 4/9£610

Sun 7/215:00 -

1 stop11h 50m

Tue 16/208:40 -

2 stops13h 47m

Deal found 4/9£618

Thu 24/919:05 -

Nonstop6h 40m

Mon 28/908:40 -

1 stop12h 55m

Deal found 9/9£564

Fri 2/1017:20 -

2 stops16h 15m

Sun 4/1006:40 -

1 stop11h 35m

Deal found 9/9£564

Find flight deals from USA to Heathrow

Round-trip from	£442
One-way from	£153
Popular in	June
Cheapest in	January
Average price	£477
Good round-trip deal	£241 or less
Good one-way deal	£217 or less

Icelandair
31/12-19/1
2 total stops
21h 10m total
USA to London

Search Deals

British Airways
14/2-31/12
1 total stop
12h 03m total
USA to London

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£87 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 September 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

Thu 1/10

18:25-21:00

1 stop21h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

Fastest return journey

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 29/10

20:15-06:50

Nonstop6h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 5/11

20:00-07:50

Nonstop6h 50m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Mon 4/1

21:35-09:30

Nonstop6h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 23/9

18:00-06:20

Nonstop7h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sun 22/11

18:25-21:00

1 stop21h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Tue 6/10

19:05-06:45

Nonstop6h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Sun 15/11

18:30-06:30

Nonstop7h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Thu 22/10

19:00-07:15

Nonstop7h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Sun 11/10

21:00-09:20

Nonstop7h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

Flights are sorted by cheapest return flights first.

Deals found on 8/9

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.

JFK-LHR

BOS-LHR

LGA-LHR

IAD-LHR

EWR-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

JFK-LHR

BOS-LHR

LGA-LHR

IAD-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 £503). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £966). 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 23% 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 Thursday, which is when the least amount of flights are scheduled (28 on average).

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

About 15% of weekly flights between United States and London have experienced delays in the past year, with the average delay time being 160 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?

Saturday 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

1,576 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

1,576 reviews

KLM

7.8

Good

1,576 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

10,188 reviews

KLM

7.8

Good

1,576 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

694 reviews

KLM

7.8

Good

1,576 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

12,047 reviews

KLM

7.8

Good

1,576 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

8,209 reviews

KLM

7.8

Good

1,576 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, Virgin Atlantic, and Finnair can get you from USA to London Heathrow Airport in just under 7h 20m. Your travel time can differ by up to 7h 25m. The distance between USA and London Heathrow Airport is about 3440 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 £66. Users have also found prices from £84 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 (90%), Delta (90%), Virgin Atlantic (90%).
What are the cheapest flights from USA to London Heathrow Airport?
The cheapest flight price from USA to London Heathrow Airport is £257. On average you can expect to pay £1,593. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £348.
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 £503). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £966). 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.

See more FAQs

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Top 10 airlines flying from USA to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£193	Average£785	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
KLM	Cheapest£232	Average£684	FlexibilityNo cancel fee	On-time75%	Search KLM flights
JetBlue	Cheapest£233	Average£582	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
TAP AIR PORTUGAL	Cheapest£235	Average£474	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Aer Lingus	Cheapest£308	Average£597	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Virgin Atlantic	Cheapest£317	Average£672	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£318	Average£663	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£329	Average£703	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Lufthansa	Cheapest£349	Average£730	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air France	Cheapest£355	Average£738	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 £153

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/2. 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 9 September 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 9 September 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 9 September 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 9 September 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 9 September 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 9 September 2026.

Last-minute flights from USA to HeathrowDiscover last-minute flight deals from USA to Heathrow. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from USA to Heathrow. Data last updated 9 September 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 9 September 2026.

Search for one-way flight options from USA to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 September 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 9 September 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 23% 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 9 September 2026.

The most flights from US0 to LHR are scheduled on a Monday (57 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (28 on average).

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

About 15% of weekly flights between United States and London have experienced delays in the past year, with the average delay time being 160 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?

Saturday 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 5 September 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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Complete your trip

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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 9 September 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 9 September 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 9 September 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 9 September 2026.

Last-minute flights from USA to Heathrow
Discover last-minute flight deals from USA to Heathrow. Data last updated 9 September 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 9 September 2026.