How long is the flight from London Heathrow Airport to North America?

Airlines like Delta, Air Canada, and Lufthansa fly from London Heathrow Airport to North America in about 12h. The time it takes to get you to your destination can typically vary by up to 32h 45m. London Heathrow Airport and North America are separated by a distance of 3543 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in North America ranges from 71.0 - 114.0 inches per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit North America when rainfall is around 71.0 mm.

If weather is an important factor for your trip to North America, 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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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

While some choose either London Heathrow - Newark or London Heathrow - New York LaGuardia, London Heathrow - New York John F Kennedy Intl is the most popular route from London Heathrow Airport to North America.

What are the cheapest flights from London Heathrow Airport to North America?

Looking at all options, your cheapest flight can be booked for £341. While the most popular route (London Heathrow - New York John F Kennedy Intl) can be booked for £338 on average, our data indicates £2,384 when flying from London Heathrow Airport to North America.

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

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 London Heathrow Airport to North America on time: Malaysia Airlines (93%), SriLankan Airlines (90%), Fiji Airways (83%).

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

Before booking your flight from London Heathrow Airport to North America check out the most popular airlines for this route: Virgin Atlantic, British Airways or Air Canada.

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

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

How can I find direct flights from Heathrow to North America?

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

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

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

£251+ Cheap Flights from London Heathrow Airport to North America

Cheap flight deals from Heathrow to North America

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to North America
Explore the most affordable flight options available from Heathrow to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2026.

Thu 5/1109:30 -

1 stop11h 45m

Sat 14/1114:40 -

1 stop10h 50m

Deal found 13/10£359

Sun 8/1112:15 -

1 stop11h 00m

Wed 13/119:40 -

1 stop10h 10m

Deal found 13/10£363

Thu 26/1112:15 -

1 stop11h 00m

Wed 2/1219:40 -

1 stop10h 10m

Deal found 13/10£364

Wed 21/1012:00 -

1 stop15h 23m

Wed 4/1110:53 -

1 stop16h 02m

Deal found 12/10£365

Wed 2/1212:15 -

1 stop11h 00m

Sat 5/1219:40 -

1 stop18h 50m

Deal found 13/10£366

Sun 8/1112:15 -

1 stop11h 00m

Tue 17/1119:40 -

1 stop18h 50m

Deal found 13/10£367

Tue 17/1120:35 -

1 stop26h 40m

Wed 25/1119:40 -

1 stop18h 50m

Deal found 13/10£369

Mon 9/1120:25 -

1 stop27h 50m

Mon 16/1121:45 -

Nonstop7h 05m

Deal found 10/10£370

Tue 10/1120:35 -

1 stop26h 40m

Tue 17/1119:40 -

1 stop10h 10m

Deal found 13/10£372

Wed 11/1120:50 -

1 stop30h 10m

Thu 26/1123:45 -

1 stop15h 20m

Deal found 13/10£378

Fri 20/1110:45 -

1 stop13h 30m

Tue 24/1121:00 -

1 stop12h 55m

Deal found 11/10£379

Thu 26/1109:55 -

1 stop17h 05m

Tue 1/1223:45 -

1 stop15h 20m

Deal found 12/10£381

Best flights from Heathrow to North America
Discover carefully curated flight deals from Heathrow to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

Mon 9/1108:40 -

1 stop12h 00m

Mon 16/1121:45 -

Nonstop7h 05m

Deal found 10/10£401

Thu 5/1111:05 -

2 stops44h 45m

Mon 9/1109:00 -

1 stop19h 50m

Deal found 13/10£418

Thu 29/1009:30 -

1 stop12h 50m

Sun 8/1118:30 -

Nonstop7h 50m

Deal found 9/10£421

Thu 29/1016:10 -

Nonstop7h 55m

Sat 14/1122:20 -

1 stop10h 25m

Deal found 10/10£425

Wed 28/1014:45 -

1 stop15h 46m

Fri 6/1109:12 -

1 stop19h 08m

Deal found 9/10£429

Fri 30/1013:30 -

2 stops28h 05m

Fri 6/1113:37 -

2 stops14h 13m

Deal found 9/10£444

Wed 9/1220:35 -

1 stop26h 40m

Wed 16/1219:40 -

1 stop18h 50m

Deal found 13/10£456

Thu 26/1106:50 -

1 stop11h 35m

Thu 3/1209:25 -

Nonstop6h 55m

Deal found 13/10£457

Fri 13/1109:00 -

1 stop15h 35m

Thu 26/1112:15 -

2 stops20h 05m

Deal found 9/10£462

Sat 7/1106:30 -

1 stop12h 30m

Sat 14/1108:00 -

Nonstop7h 10m

Deal found 8/10£463

Thu 7/109:05 -

1 stop33h 50m

Tue 12/117:55 -

1 stop19h 45m

Deal found 10/10£468

Thu 26/1106:00 -

1 stop14h 20m

Fri 4/1223:25 -

2 stops17h 10m

Deal found 10/10£469

Tue 1/1208:40 -

1 stop11h 20m

Sun 6/1208:00 -

Nonstop7h 10m

Deal found 11/10£470

Fri 27/1118:40 -

2 stops24h 15m

Fri 4/1218:30 -

1 stop15h 05m

Deal found 13/10£492

Thu 24/1218:10 -

1 stop29h 55m

Mon 4/121:35 -

1 stop30h 45m

Deal found 11/10£507

Wed 2/1211:45 -

Nonstop11h 10m

Thu 14/117:25 -

Nonstop10h 25m

Deal found 9/10£517

Tue 20/1010:30 -

1 stop13h 25m

Sun 15/1116:40 -

1 stop18h 00m

Deal found 13/10£577

Fri 11/1211:45 -

1 stop12h 30m

Mon 14/1212:15 -

1 stop13h 35m

Deal found 13/10£427

Sun 10/114:45 -

1 stop29h 31m

Fri 22/119:10 -

1 stop33h 10m

Deal found 11/10£433

Fri 27/1109:00 -

1 stop16h 30m

Sat 5/1218:00 -

Nonstop7h 20m

Deal found 9/10£449

Wed 11/1111:45 -

2 stops16h 30m

Wed 18/1114:10 -

1 stop14h 45m

Deal found 10/10£471

Mon 16/1111:50 -

Nonstop11h 00m

Tue 1/1216:40 -

Nonstop10h 15m

Deal found 13/10£476

Thu 17/1214:45 -

1 stop17h 14m

Fri 15/108:00 -

1 stop20h 20m

Deal found 11/10£435

Thu 26/1112:15 -

1 stop11h 00m

Wed 2/1219:40 -

1 stop10h 10m

Deal found 9/10£479

Fri 30/1011:20 -

1 stop15h 36m

Sat 14/1121:45 -

Nonstop7h 05m

Deal found 10/10£436

Thu 26/1109:10 -

Nonstop8h 30m

Thu 3/1221:00 -

Nonstop7h 10m

Deal found 13/10£480

Mon 23/1112:00 -

Nonstop8h 10m

Mon 30/1121:05 -

Nonstop7h 05m

Deal found 9/10£480

Thu 5/1106:00 -

1 stop14h 20m

Sun 8/1100:10 -

2 stops31h 30m

Deal found 13/10£488

Wed 18/1112:05 -

1 stop13h 25m

Mon 23/1115:08 -

1 stop10h 32m

Deal found 10/10£450

Wed 25/1106:40 -

1 stop14h 00m

Sat 5/1218:30 -

1 stop19h 20m

Deal found 12/10£505

Find flight deals from Heathrow to North America

Round-trip from	£359
One-way from	£251
Popular in	July
Cheapest in	February
Average price	£488
Good round-trip deal	£385 or less
Good one-way deal	£336 or less

Lufthansa
5/11-14/11
2 total stops
22h 35m total
London to North America

Search Deals

TAP AIR PORTUGAL
11/4-31/12
1 total stop
18h 05m total
London to North America

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£72 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

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

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Sat 9/1

07:40-14:55

1 stop12h 15m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£318

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Tue 8/12

07:30-23:26

2 stops20h 56m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Sat 21/11

12:45-16:15

Nonstop8h 30m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Fri 27/11

12:00-15:10

Nonstop8h 10m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Tue 8/12

18:00-21:30

Nonstop8h 30m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Thu 10/12

15:10-18:45

Nonstop8h 35m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Thu 19/11

12:45-16:15

Nonstop8h 30m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£332

LondonToronto

LHR London Heathrow - YYZ Toronto Pearson Intl

LHRYYZ

London Heathrow

Tue 8/12

15:00-18:00

Nonstop8h 00m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£334

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Mon 21/12

07:50-20:57

2 stops18h 07m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£336

Fastest return journey

LondonNewark

LHR London Heathrow - EWR Newark

LHREWR

London Heathrow

Mon 11/1

08:00-10:50

Nonstop7h 50m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£342

Flights are sorted by cheapest return flights first.

Deals found on 12/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Heathrow to North America

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

LHR-YYZ

LHR-YYC

LHR-LAX

LHR-EWR

LHR-JFK

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 London Heathrow Airport to North America

LHR-0NA

LHR-YYZ

LHR-YYC

LHR-LAX

LHR-EWR

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to North America (average of £513). Flying from London Heathrow Airport to North America in July is currently the most expensive (average of £688). 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 LHR to NA?

When flying from London Heathrow Airport to North America, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 13% versus a flight in the evening.

Weekly flight availability from London Heathrow Airport to North America

The most flights from LHR to 0NA are scheduled on a Monday (56 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (51 on average).

How often are flights from London to North America delayed?

About 12% of weekly flights between London and North America have experienced delays in the past year, with the average delay time being 158 minutes.

What is the most punctual flight time for London to North America flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening 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 Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to North America flights?

Over the past year, Delta have had the lowest number of delays on this route, with just 8% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to North America, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

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

Reviews of airlines servicing North America

Read reviews from past customers who have flown with Virgin Atlantic,United Airlines, andAir Canada from London Heathrow Airport to North America. 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.

Virgin Atlantic

7.5

Good

695 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Virgin Atlantic

7.5

Good

695 reviews

Virgin Atlantic

7.5

Good

695 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

United Airlines

7.4

Good

10,359 reviews

Virgin Atlantic

7.5

Good

695 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Air Canada

7.1

Good

11,769 reviews

Virgin Atlantic

7.5

Good

695 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Lufthansa

6.8

Okay

8,277 reviews

Virgin Atlantic

7.5

Good

695 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

British Airways

6.7

Okay

8,261 reviews

Virgin Atlantic

7.5

Good

695 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

How long is the flight from London Heathrow Airport to North America?
Airlines like Delta, Air Canada, and Lufthansa fly from London Heathrow Airport to North America in about 12h. The time it takes to get you to your destination can typically vary by up to 32h 45m. London Heathrow Airport and North America are separated by a distance of 3543 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from London Heathrow Airport to North America one-way?
The cheapet airlines for a one-way flight from London Heathrow Airport to North America are Icelandair (£149), WestJet (£172), and KLM (£184).
What are the most popular routes from London Heathrow Airport to North America?
While some choose either London Heathrow - Newark or London Heathrow - New York LaGuardia, London Heathrow - New York John F Kennedy Intl is the most popular route from London Heathrow Airport to North America.
What are the most reliable airlines from London Heathrow Airport to North America?
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 London Heathrow Airport to North America on time: Malaysia Airlines (93%), SriLankan Airlines (90%), Fiji Airways (83%).
What are the cheapest flights from London Heathrow Airport to North America?
Looking at all options, your cheapest flight can be booked for £341. While the most popular route (London Heathrow - New York John F Kennedy Intl) can be booked for £338 on average, our data indicates £2,384 when flying from London Heathrow Airport to North America.
Can I find deals for flights from Heathrow to North America that include hotel bookings?
Yes. In addition to deals on Heathrow to North America flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to North America?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to North America.
Can I find deals for business class flights from Heathrow to North America?
Yes. Cheapflights offers flight deals from Heathrow to North America 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 London Heathrow Airport to North America?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to North America (average of £513). Flying from London Heathrow Airport to North America in July is currently the most expensive (average of £688). 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 Heathrow to North America

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest£68	Average£201	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Delta	Cheapest£267	Average£606	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
ITA Airways	Cheapest£268	Average£613	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
TAP AIR PORTUGAL	Cheapest£285	Average£522	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Finnair	Cheapest£287	Average£669	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Icelandair	Cheapest£291	Average£450	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Norse Atlantic UK	Cheapest£302	Average£565	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
SWISS	Cheapest£308	Average£470	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
JetBlue	Cheapest£330	Average£590	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£338	Average£530	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to North America?

Deals for Heathrow to North America flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to North America by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to North America from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Heathrow to North America flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London Heathrow Airport to North America from £251

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

Cheap flight deals from Heathrow to North America

Cheapest flights from Heathrow to North AmericaExplore the most affordable flight options available from Heathrow to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2026.

Explore the most affordable flight options available from Heathrow to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2026.

Best flights from Heathrow to North AmericaDiscover carefully curated flight deals from Heathrow to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

Discover carefully curated flight deals from Heathrow to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

Direct flights from Heathrow to North AmericaExplore direct flight options from Heathrow to North America based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 October 2026.

Explore direct flight options from Heathrow to North America based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 October 2026.

Last-minute flights from Heathrow to North AmericaDiscover last-minute flight deals from Heathrow to North America. Data last updated 14 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to North America. Data last updated 14 October 2026 and is based on user searches.

One-way flights from Heathrow to North AmericaSearch for one-way flight options from Heathrow to North America. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.

Search for one-way flight options from Heathrow to North America. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.

Find flight deals from Heathrow to North America

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 London Heathrow Airport to North America that are best for you.

Best time to book a flight from Heathrow to North America

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

Cheapflights Insights

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

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

Find hourly flight availability from Heathrow to North America. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 October 2026.

When flying from London Heathrow Airport to North America, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 13% versus a flight in the evening.

Weekly flight availability from London Heathrow Airport to North America

The most flights from LHR to 0NA are scheduled on a Monday (56 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (51 on average).

How often are flights from London to North America delayed?

About 12% of weekly flights between London and North America have experienced delays in the past year, with the average delay time being 158 minutes.

What is the most punctual flight time for London to North America flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening 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 Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to North America flights?

Over the past year, Delta have had the lowest number of delays on this route, with just 8% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to North America, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Use this chart to determine the cheapest time to fly return from Heathrow to North America. Price data was last updated on 10 October 2026.

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

Reviews of airlines servicing North America

Related info for your journey

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

How can I find direct flights from Heathrow to North America?

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

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

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Cheapest flights from Heathrow to North America
Explore the most affordable flight options available from Heathrow to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2026.

Best flights from Heathrow to North America
Discover carefully curated flight deals from Heathrow to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

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