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

Icelandair, TAP AIR PORTUGAL, and Finnair can get you from USA to London Heathrow Airport in just under 12h. Your travel time can differ by up to 5h 35m. The distance between USA and London Heathrow Airport is about 4325 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 £67. Users have also found prices from £86 and £97 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 New York LaGuardia - London Heathrow.

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

The cheapest flight price from USA to London Heathrow Airport is £274. On average you can expect to pay £880. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £361.

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: KLM (87%), SAUDIA (87%), Air France (87%).

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.

£182+ 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 24 September 2026.

Sat 14/1121:40 -

1 stop20h 00m

Thu 3/1206:00 -

1 stop18h 10m

Deal found 22/9£408

Mon 30/1121:40 -

1 stop14h 50m

Mon 7/1206:00 -

1 stop18h 10m

Deal found 19/9£409

Thu 5/1121:40 -

1 stop20h 00m

Mon 9/1108:15 -

1 stop15h 55m

Deal found 19/9£410

Wed 4/1107:04 -

2 stops27h 56m

Wed 11/1107:05 -

3 stops28h 56m

Deal found 19/9£411

Thu 5/1121:40 -

1 stop20h 00m

Fri 20/1118:30 -

1 stop29h 40m

Deal found 19/9£416

Thu 5/1121:40 -

1 stop14h 50m

Sun 8/1118:30 -

1 stop29h 40m

Deal found 22/9£416

Mon 30/1121:40 -

1 stop14h 50m

Wed 13/118:30 -

1 stop29h 40m

Deal found 19/9£418

Mon 23/1121:40 -

1 stop18h 55m

Wed 2/1218:30 -

1 stop29h 40m

Deal found 21/9£420

Thu 5/1121:40 -

1 stop20h 00m

Fri 13/1119:55 -

1 stop28h 15m

Deal found 22/9£421

Sat 5/1221:40 -

1 stop34h 00m

Sat 12/1206:00 -

1 stop18h 10m

Deal found 21/9£422

Sat 14/1121:40 -

1 stop16h 15m

Sun 22/1119:55 -

1 stop28h 15m

Deal found 23/9£424

Wed 4/1117:35 -

2 stops17h 50m

Sun 15/1106:40 -

1 stop14h 05m

Deal found 19/9£456

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 24 September 2026.

Fri 12/217:50 -

1 stop12h 00m

Sat 20/220:35 -

1 stop29h 00m

Deal found 20/9£465

Fri 6/1112:50 -

2 stops17h 35m

Fri 13/1119:55 -

1 stop28h 15m

Deal found 23/9£501

Tue 20/1015:30 -

1 stop12h 55m

Tue 27/1015:35 -

Nonstop8h 00m

Deal found 20/9£502

Wed 7/1016:15 -

1 stop10h 40m

Thu 15/1006:50 -

1 stop11h 10m

Deal found 23/9£509

Sun 1/1118:35 -

1 stop31h 35m

Wed 4/1106:50 -

2 stops13h 03m

Deal found 22/9£517

Tue 27/1020:15 -

Nonstop6h 35m

Mon 2/1108:40 -

1 stop10h 33m

Deal found 22/9£536

Mon 7/1220:00 -

Nonstop7h 05m

Mon 1/206:30 -

1 stop12h 39m

Deal found 20/9£538

Mon 12/1023:55 -

Nonstop7h 10m

Wed 14/1008:40 -

1 stop10h 55m

Deal found 19/9£549

Mon 7/1218:30 -

2 stops13h 25m

Mon 21/1219:50 -

2 stops23h 05m

Deal found 19/9£553

Sun 14/218:40 -

1 stop11h 00m

Tue 23/212:35 -

Nonstop8h 55m

Deal found 21/9£562

Tue 13/1013:00 -

1 stop12h 30m

Tue 20/1008:40 -

1 stop16h 20m

Deal found 22/9£583

Sat 26/921:40 -

Nonstop9h 25m

Mon 5/1017:00 -

Nonstop10h 00m

Deal found 20/9£624

Sun 21/319:50 -

1 stop15h 30m

Wed 24/309:00 -

1 stop13h 15m

Deal found 21/9£652

Wed 21/1015:30 -

1 stop12h 55m

Wed 28/1017:00 -

Nonstop8h 00m

Deal found 23/9£503

Thu 12/1121:50 -

1 stop32h 25m

Sun 15/1109:00 -

1 stop13h 42m

Deal found 23/9£523

Fri 15/110:05 -

2 stops20h 20m

Wed 20/118:30 -

1 stop29h 40m

Deal found 21/9£526

Wed 14/1019:05 -

Nonstop6h 40m

Mon 19/1009:55 -

1 stop11h 41m

Deal found 20/9£536

Wed 14/1022:05 -

Nonstop7h 35m

Wed 21/1011:30 -

1 stop13h 05m

Deal found 23/9£544

Mon 28/920:05 -

Nonstop6h 55m

Tue 6/1010:05 -

Nonstop7h 35m

Deal found 21/9£504

Sat 10/1017:40 -

2 stops14h 15m

Thu 15/1006:40 -

1 stop13h 55m

Deal found 19/9£561

Fri 4/1206:00 -

1 stop10h 20m

Mon 7/1211:05 -

2 stops32h 48m

Deal found 22/9£565

Sat 27/219:35 -

1 stop10h 15m

Thu 4/312:15 -

1 stop11h 10m

Deal found 22/9£565

Sun 11/1001:00 -

1 stop10h 35m

Sun 18/1016:20 -

1 stop11h 27m

Deal found 20/9£565

Sun 18/1022:05 -

Nonstop7h 35m

Mon 26/1012:05 -

1 stop33h 55m

Deal found 22/9£534

Sun 8/1119:15 -

Nonstop6h 35m

Sun 15/1114:05 -

1 stop9h 56m

Deal found 19/9£536

Fri 13/1117:10 -

Nonstop8h 35m

Tue 17/1109:45 -

Nonstop9h 55m

Deal found 21/9£593

Tue 20/1022:05 -

Nonstop7h 35m

Tue 27/1013:20 -

Nonstop8h 40m

Deal found 20/9£549

Tue 3/1114:14 -

2 stops22h 16m

Tue 10/1106:00 -

2 stops22h 56m

Deal found 19/9£550

Thu 19/1117:30 -

2 stops14h 25m

Sun 22/1121:05 -

2 stops21h 20m

Deal found 23/9£566

Wed 21/1015:30 -

1 stop12h 55m

Thu 29/1011:45 -

1 stop12h 45m

Deal found 23/9£515

Find flight deals from USA to Heathrow

Round-trip from	£408
One-way from	£182
Popular in	June
Cheapest in	January
Average price	£556
Good round-trip deal	£312 or less
Good one-way deal	£222 or less

TAP AIR PORTUGAL
14/11-3/12
2 total stops
38h 10m total
USA to London

Search Deals

Virgin Atlantic
13/11-31/12
1 total stop
10h 56m total
USA to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£84 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

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Sun 25/10

22:35-09:30

Nonstop6h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

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

£222

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sat 28/11

22:15-10:30

Nonstop7h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 14/10

08:15-20:10

Nonstop6h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 30/9

18:30-06:45

Nonstop7h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Fri 23/10

18:25-21:00

1 stop21h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Sun 11/10

20:55-09:10

Nonstop7h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

New YorkLondon

JFK New York John F Kennedy Intl - LHR London Heathrow

JFKLHR

New York John F Kennedy Intl

Wed 4/11

08:00-20:10

Nonstop7h 10m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Thu 19/11

09:25-21:20

Nonstop6h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

NewarkLondon

EWR Newark - LHR London Heathrow

EWRLHR

Newark

Mon 19/10

07:30-06:30

1 stop18h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

Flights are sorted by cheapest return flights first.

Deals found on 18/9

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.

EWR-LHR

BOS-LHR

JFK-LHR

SEA-LHR

IAD-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

EWR-LHR

BOS-LHR

JFK-LHR

SEA-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 £516). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £986). 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 Friday, which is when the least amount of flights are scheduled (48 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

1,575 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

1,575 reviews

KLM

7.8

Good

1,575 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

10,227 reviews

KLM

7.8

Good

1,575 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

1,575 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

7.0

Good

12,077 reviews

KLM

7.8

Good

1,575 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

8,226 reviews

KLM

7.8

Good

1,575 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?
Icelandair, TAP AIR PORTUGAL, and Finnair can get you from USA to London Heathrow Airport in just under 12h. Your travel time can differ by up to 5h 35m. The distance between USA and London Heathrow Airport is about 4325 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 £67. Users have also found prices from £86 and £97 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 New York LaGuardia - 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: KLM (87%), SAUDIA (87%), Air France (87%).
What are the cheapest flights from USA to London Heathrow Airport?
The cheapest flight price from USA to London Heathrow Airport is £274. On average you can expect to pay £880. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £361.
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 £516). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £986). 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£197	Average£785	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
British Airways	Cheapest£215	Average£690	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£237	Average£707	FlexibilityNo cancel fee	On-time75%	Search KLM flights
JetBlue	Cheapest£237	Average£602	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
TAP AIR PORTUGAL	Cheapest£239	Average£479	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Aer Lingus	Cheapest£315	Average£622	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Virgin Atlantic	Cheapest£315	Average£697	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£325	Average£716	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£335	Average£726	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Air France	Cheapest£365	Average£760	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 £182

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. 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 24 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 24 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 24 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 24 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 24 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 24 September 2026.

Last-minute flights from USA to HeathrowDiscover last-minute flight deals from USA to Heathrow. Data last updated 24 September 2026 and is based on user searches.

Discover last-minute flight deals from USA to Heathrow. Data last updated 24 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 24 September 2026.

Search for one-way flight options from USA to Heathrow. Find affordable one-way fares based on user searches. Data last updated 24 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 24 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 24 September 2026.

The most flights from US0 to LHR are scheduled on a Monday (57 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (48 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 19 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 24 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 24 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 24 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 24 September 2026.

Last-minute flights from USA to Heathrow
Discover last-minute flight deals from USA to Heathrow. Data last updated 24 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 24 September 2026.