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Cheap flights from North America to London Heathrow Airport from £141

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
5 May — 12 May1
1 adult

Cheap flight deals from North America to Heathrow

Keep the following information in mind while searching for North America to Heathrow flight deals. Data was last updated 30 April 2025.

Round-trip from

£363

One-way from

£141

Popular in

December

Cheapest in

January

Average price

£435

Good round-trip deal

£416 or less

Good one-way deal

£248 or less
Air Canada
  • Air Canada
  • 19/5-10/6
  • 1 total stop
  • 19h 45m total
  • North America to London
Icelandair
  • Icelandair
  • 20/7
  • 1 total stop
  • 10h 30m total
  • North America to London
High demand for flights, 5% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from North America to London Heathrow.
Price to beat on a one-way flight from North America to London Heathrow.

Find flight deals from North America to Heathrow

Cheapest flights from North America to Heathrow
Explore the most affordable flight options available from North America to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Sun 4/518:20YYZ - LHR
Nonstop7h 15mAir Canada
Wed 14/508:40LHR - YYZ
1 stop12h 45mAir Canada
Deal found 29/4£363
Mon 13/1023:00YYZ - LHR
1 stop32h 45mTAP AIR PORTUGAL
Mon 20/1008:00LHR - YYZ
1 stop34h 55mTAP AIR PORTUGAL
Deal found 29/4£367
Thu 29/520:50YYZ - LHR
1 stop10h 05mIcelandair
Fri 13/613:05LHR - YYZ
1 stop13h 50mIcelandair
Deal found 30/4£370
Thu 31/720:25JFK - LHR
1 stop10h 30mIcelandair
Sat 6/921:25LHR - JFK
1 stop29h 45mIcelandair
Deal found 29/4£385
Wed 20/818:55JFK - LHR
1 stop16h 05mScandinavian Airlines
Tue 26/807:05LHR - JFK
1 stop13h 35mScandinavian Airlines
Deal found 28/4£385
Tue 16/918:30JFK - LHR
Nonstop7h 00mIberia
Thu 25/918:05LHR - JFK
Nonstop7h 55mIberia
Deal found 29/4£386
Fri 16/519:25JFK - LHR
1 stop13h 15mSWISS
Sun 18/506:00LHR - JFK
1 stop11h 50mSWISS
Deal found 29/4£387
Sun 17/819:30JFK - LHR
Nonstop7h 15mBritish Airways
Wed 27/814:10LHR - JFK
Nonstop7h 55mBritish Airways
Deal found 30/4£391
Thu 8/523:10JFK - LHR
1 stop16h 10mMultiple Airlines
Tue 13/520:50LHR - JFK
1 stop29h 50mMultiple Airlines
Deal found 30/4£393
Thu 8/515:50LGA - LHR
1 stop12h 45mAir Canada
Thu 15/509:30LHR - LGA
1 stop10h 18mAir Canada
Deal found 28/4£396
Sun 7/910:30LGA - LHR
2 stops15h 00mMultiple Airlines
Sun 5/1006:50LHR - LGA
2 stops12h 57mMultiple Airlines
Deal found 29/4£400
Mon 19/516:00YYZ - LHR
1 stop9h 30mMultiple Airlines
Sun 8/606:30LHR - YYZ
1 stop18h 15mMultiple Airlines
Deal found 29/4£400

Cheapflights Fare Finder

Customise your flight search to find flights from North America to Heathrow 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 30 April 2025.
Use the filters below to find and compare flights from North America to London Heathrow Airport that are best for you.

Fly from

North America

Fly to

Heathrow

Route

Depart

Return

Price

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 19/5

20:30-08:35

Nonstop7h 05m

London Heathrow

Tue 10/6

08:45-16:25

1 stop12h 40m

£363

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 13/10

23:00-12:45

1 stop32h 45m

London Heathrow

Mon 20/10

08:00-13:55

1 stop34h 55m

£367

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 1/6

23:00-11:55

1 stop31h 55m

London Heathrow

Fri 13/6

21:25-21:55

1 stop29h 30m

£373

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 31/7

20:25-11:55

1 stop10h 30m

London Heathrow

Sat 6/9

21:25-22:10

1 stop29h 45m

£385

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 20/8

18:55-16:00

1 stop16h 05m

London Heathrow

Tue 26/8

07:05-15:40

1 stop13h 35m

£385

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 16/5

19:25-13:40

1 stop13h 15m

London Heathrow

Sun 18/5

06:00-12:50

1 stop11h 50m

£387

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 8/5

15:50-09:35

1 stop12h 45m

London Heathrow

Thu 15/5

09:30-14:48

1 stop10h 18m

£396

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 17/8

07:50-19:45

Nonstop6h 55m

London Heathrow

Sun 24/8

08:25-11:10

Nonstop7h 45m

£397

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 20/8

18:45-06:50

Nonstop7h 05m

London Heathrow

Sun 24/8

14:40-17:35

Nonstop7h 55m

£398

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 19/5

16:00-06:30

1 stop9h 30m

London Heathrow

Wed 28/5

08:30-11:20

Nonstop7h 50m

£399

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 60 results
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Best time to book a flight from North America to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from North America 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 North America to London Heathrow Airport

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

Currently, January is the cheapest month in which you can book a flight from North America to London Heathrow Airport (average of £112). Flying from North America to London Heathrow Airport in August is currently the most expensive (average of £164). 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 NA to LHR?

Find hourly flight availability from North America 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 30 April 2025.

When flying from North America to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from North America to London Heathrow Airport

Explore weekly flight availability from North America 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 30 April 2025.

The most flights from 0NA to LHR are scheduled on a Monday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

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.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 30 April 2025.

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from North America to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from North America to London Heathrow Airport one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as £141. Users have also found prices from £167 and £195 on TAP AIR PORTUGAL and WestJet, respectively.

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

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

    Consider Air Canada (83%), Austrian Airlines (83%) or United Airlines (83%) when booking your flight. These represent the most reliable airlines when flying from North America to London Heathrow Airport.

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

    The cheapest flight price from North America to London Heathrow Airport is £298. On average you can expect to pay £2,209. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £299.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from North America 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 North America to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from North America to London Heathrow Airport (average of £112). Flying from North America to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near North America?

Book flights to North America if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Northampton
Southend-on-Sea
Ilford
Crawley
Hayes
Ipswich
Watford
Wembley
Swindon
Folkestone
Maidstone
Winchester

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for North America to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from North America to Heathrow

Discover the top 10 airlines that operate flights from North America to Heathrow. 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest£245Average£428FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Virgin AtlanticCheapest£281Average£579FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£284Average£538FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£289Average£600FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£296Average£463FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest£297Average£607FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
British AirwaysCheapest£298Average£601FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£305Average£619FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£305Average£527FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air CanadaCheapest£305Average£523FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 North America to Heathrow?

Deals for North America to Heathrow 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 North America to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from North America by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Heathrow from North America? 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 North America to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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