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Cheap flights from London Heathrow Airport to North America from £253

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to North America

Keep the following information in mind while searching for Heathrow to North America flight deals. Data was last updated 20 November 2025.

Round-trip from

£339

One-way from

£253

Popular in

December

Cheapest in

September

Average price

£402

Good round-trip deal

£379 or less

Good one-way deal

£301 or less
Icelandair
  • Icelandair
  • 29/1-2/2
  • 2 total stops
  • 34h 00m total
  • London to North America
Search Deals
10/2
  • 10/2
  • 2 total stops
  • 44h 12m total
  • London to North America
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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.
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Find flight deals from Heathrow to North America

Enter your travel dates to find the best prices.

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 20 November 2025.

Sat 6/1208:15LHR - BOS
1 stop16h 55mTAP AIR PORTUGAL
Sat 31/118:05BOS - LHR
1 stop13h 35mTAP AIR PORTUGAL
Deal found 17/11£356
Wed 10/1208:15LHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Sun 1/222:00JFK - LHR
1 stop14h 30mTAP AIR PORTUGAL
Deal found 19/11£356
Wed 10/1208:15LHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Sun 18/122:00JFK - LHR
1 stop18h 35mTAP AIR PORTUGAL
Deal found 19/11£358
Wed 10/1206:00LHR - EWR
1 stop14h 30mTAP AIR PORTUGAL
Sun 18/123:55EWR - LHR
1 stop12h 35mTAP AIR PORTUGAL
Deal found 19/11£358
Wed 10/1218:30LHR - BOS
1 stop25h 05mTAP AIR PORTUGAL
Thu 8/122:45BOS - LHR
1 stop17h 50mTAP AIR PORTUGAL
Deal found 17/11£359
Tue 2/1206:00LHR - JFK
1 stop19h 05mTAP AIR PORTUGAL
Sun 7/1222:00JFK - LHR
1 stop19h 40mTAP AIR PORTUGAL
Deal found 19/11£359
Sun 14/1208:15LHR - BOS
1 stop16h 55mTAP AIR PORTUGAL
Sun 11/122:45BOS - LHR
1 stop13h 45mTAP AIR PORTUGAL
Deal found 16/11£362
Fri 5/1208:15LHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Mon 8/1222:00JFK - LHR
1 stop14h 30mTAP AIR PORTUGAL
Deal found 19/11£362
Fri 5/1206:00LHR - EWR
1 stop14h 30mTAP AIR PORTUGAL
Mon 8/1217:40EWR - LHR
1 stop14h 00mTAP AIR PORTUGAL
Deal found 19/11£362
Mon 24/1106:00LHR - JFK
1 stop19h 05mTAP AIR PORTUGAL
Thu 4/1222:00JFK - LHR
1 stop19h 40mTAP AIR PORTUGAL
Deal found 19/11£362
Wed 26/1106:00LHR - EWR
1 stop21h 10mTAP AIR PORTUGAL
Tue 2/1223:55EWR - LHR
1 stop17h 45mTAP AIR PORTUGAL
Deal found 19/11£362
Mon 1/1218:30LHR - EWR
1 stop32h 40mTAP AIR PORTUGAL
Sat 31/117:40EWR - LHR
1 stop16h 50mTAP AIR PORTUGAL
Deal found 19/11£363

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to North America that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to North America that are best for you.

Fly from

Heathrow

Fly to

North America

Route

Depart

Return

Price

LondonNewark

LHR - EWR

LHREWR

London Heathrow

Sat 21/3

12:25-23:10

1 stop14h 45m

Newark

Mon 30/3

23:00-18:50

1 stop14h 50m

£378

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Wed 21/1

12:15-18:00

1 stop10h 45m

New York John F Kennedy Intl

Fri 30/1

19:25-10:50

1 stop10h 25m

£397

LondonNewark

LHR - EWR

LHREWR

London Heathrow

Sat 17/1

12:15-18:25

1 stop11h 10m

Newark

Fri 30/1

19:35-19:30

1 stop18h 55m

£397

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 20/2

12:15-18:15

1 stop11h 00m

Toronto Pearson Intl

Thu 26/2

19:40-10:50

1 stop10h 10m

£399

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 18/1

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Fri 30/1

19:50-19:30

1 stop18h 40m

£399

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sun 1/2

07:40-14:50

1 stop12h 10m

Toronto Pearson Intl

Sun 15/2

20:25-08:30

Nonstop7h 05m

£406

LondonNewark

LHR - EWR

LHREWR

London Heathrow

Wed 18/3

21:05-14:25

2 stops21h 20m

Newark

Sat 21/3

19:30-14:35

1 stop15h 05m

£407

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 30/1

09:30-16:15

1 stop11h 45m

Toronto Pearson Intl

Fri 13/2

18:10-06:30

Nonstop7h 20m

£407

LondonNewark

LHR - EWR

LHREWR

London Heathrow

Tue 10/3

21:05-14:25

2 stops21h 20m

Newark

Tue 17/3

18:40-12:55

1 stop14h 15m

£410

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 18/2

09:00-20:20

1 stop16h 20m

Boston Logan Intl

Wed 25/2

12:05-06:40

2 stops13h 35m

£415

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 60 results
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2
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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.
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

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to North America (average of £304). Flying from London Heathrow Airport to North America in June is currently the most expensive (average of £349). 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?

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 20 November 2025.

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 in the evening, which can drop the price by up to 7% versus a flight at midday.

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 2 November 2025.

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

Weekly flight availability from London Heathrow Airport to North America

Explore weekly flight availability from Heathrow to North America. 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 20 November 2025.

The most flights from LHR to 0NA are scheduled on a Monday (45 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (38 on average).

Reviews of airlines servicing North America

Get insights into the airlines that provide service to North America. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to North America. Reviews last updated 20 November 2025.
Read reviews from past customers who have flown with Finnair, Virgin Atlantic, 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.
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Virgin Atlantic
7.5
Good
673 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Air Canada
7.1
Good
10,462 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Lufthansa
6.8
Okay
7,577 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,534 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to North America. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like TAP AIR PORTUGAL, Icelandair, and Lufthansa fly from London Heathrow Airport to North America in about 10h 45m. The time it takes to get you to your destination can typically vary by up to 4h. London Heathrow Airport and North America are separated by a distance of 3440 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 Finnair (£282), KLM (£282), and Delta (£282).

  • 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: SriLankan Airlines (82%), KLM (82%), Air Canada (82%).

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

    Looking at all options, your cheapest flight can be booked for £352. While the most popular route (London Heathrow - New York John F Kennedy Intl) can be booked for £308 on average, our data indicates £2,596 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to North America (average of £304). Flying from London Heathrow Airport to North America in June is currently the most expensive (average of £349). 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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Alternative routes for Heathrow to North America

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Heathrow to North America

Discover the top 10 airlines that operate flights from Heathrow to North America. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£217Average£471FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
JetBlueCheapest£241Average£580FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest£243Average£661FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£289Average£518FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£292Average£544FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
SWISSCheapest£299Average£386FlexibilityNo cancel feeOn-time79%
Search SWISS flights
United AirlinesCheapest£303Average£534FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
AeromexicoCheapest£304Average£679FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
Scandinavian AirlinesCheapest£307Average£516FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£310Average£631FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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