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Cheap flights from the United States to London Heathrow Airport from £142

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
2 Apr — 9 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Heathrow

Enter your travel dates to find the best prices.

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 3 March 2026.

Fri 8/520:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Fri 15/513:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 28/2£346
Mon 27/423:25
JFK
-
LHR
1 stop15h 40m
LEVEL
Thu 30/420:50
LHR
-
JFK
1 stop29h 50m
LEVEL
Deal found 1/3£347
Tue 28/423:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Wed 27/521:25
LHR
-
JFK
1 stop29h 40m
Icelandair
Deal found 26/2£348
Mon 20/420:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Sat 9/513:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 2/3£348
Mon 27/420:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Sat 2/513:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 28/2£349
Tue 28/423:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Tue 12/513:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 27/2£350
Tue 28/423:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Tue 5/513:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 2/3£351
Mon 13/420:30
JFK
-
LHR
1 stop18h 50m
Icelandair
Mon 4/513:05
LHR
-
JFK
1 stop14h 00m
Icelandair
Deal found 2/3£351
Fri 6/1116:25
JFK
-
LHR
1 stop13h 50m
SWISS
Sun 8/1111:10
LHR
-
JFK
1 stop16h 29m
SWISS
Deal found 1/3£352
Thu 30/423:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Sun 3/513:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 3/3£354
Fri 1/523:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Sun 10/521:25
LHR
-
JFK
1 stop26h 55m
Icelandair
Deal found 28/2£355
Fri 8/514:30
LGA
-
LHR
1 stop13h 05m
Air Canada
Sun 10/509:30
LHR
-
LGA
1 stop12h 28m
Air Canada
Deal found 26/2£360

Find flight deals from USA to Heathrow

Keep the following information in mind while searching for USA to Heathrow flight deals. Data was last updated 3 March 2026.

Round-trip from

£346

One-way from

£142

Popular in

December

Cheapest in

September

Average price

£423

Good round-trip deal

£299 or less

Good one-way deal

£169 or less
Icelandair
  • Icelandair
  • 8/5-15/5
  • 2 total stops
  • 21h 40m total
  • USA to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 30/3
  • 1 total stop
  • 14h 40m total
  • USA to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£11 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 March 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

 
Customise your flight search to find flights from USA 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 3 March 2026.
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

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 22/4

15:02-08:35

1 stop12h 33m

London Heathrow

Mon 11/5

13:50-20:15

1 stop11h 25m

£421

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 23/4

19:30-06:55

1 stop30h 25m

London Heathrow

Mon 27/4

14:05-09:49

1 stop24h 44m

£426

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 30/4

19:50-08:20

Nonstop7h 30m

London Heathrow

Sun 3/5

06:50-13:05

1 stop11h 15m

£426

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 1/5

19:00-06:45

Nonstop6h 45m

London Heathrow

Mon 4/5

06:30-13:10

1 stop11h 40m

£429

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sat 28/3

19:45-09:00

1 stop9h 15m

London Heathrow

Tue 31/3

08:30-14:41

1 stop11h 11m

£430

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 18/4

17:20-12:55

1 stop14h 35m

London Heathrow

Mon 20/4

06:40-13:15

1 stop11h 35m

£432

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 27/8

23:10-10:40

Nonstop6h 30m

London Heathrow

Wed 2/9

18:55-21:20

Nonstop7h 25m

£433

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 12/8

17:40-10:00

1 stop11h 20m

London Heathrow

Wed 26/8

06:55-18:10

2 stops16h 15m

£433

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 10/4

12:45-21:00

1 stop27h 15m

London Heathrow

Sat 18/4

15:20-18:45

Nonstop8h 25m

£433

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 17/5

20:52-09:30

Nonstop7h 38m

London Heathrow

Thu 28/5

08:15-11:14

Nonstop7h 59m

£441

Flights are sorted by cheapest return flights first.

Deals found on 27/2

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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.
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

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 £63). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £431). 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?

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 3 March 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 28% on your trip compared to booking a flight at midday.

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 21 February 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.

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

About 16% of weekly flights between United States and London have experienced delays in the past year, with the average delay time being 154 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?

Tuesday 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.

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 3 March 2026.
Read reviews from past customers who have flown with KLM, Virgin Atlantic, andUnited Airlines 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
7.7
Good
1,461 reviews
Check prices

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,461 reviews
KLM
7.7
Good
1,461 reviews
Check prices

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
680 reviews
KLM
7.7
Good
1,461 reviews
Check prices

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,378 reviews
KLM
7.7
Good
1,461 reviews
Check prices

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Iberia
7.0
Good
3,130 reviews
KLM
7.7
Good
1,461 reviews
Check prices

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,773 reviews
KLM
7.7
Good
1,461 reviews
Check prices

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from USA to Heathrow. 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 USA to London Heathrow Airport?

    United Airlines, KLM, and Scandinavian Airlines can get you from USA to London Heathrow Airport in just under 6h 45m. Your travel time can differ by up to 7h 50m. The distance between USA and London Heathrow Airport is about 3254 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 £96 and £106 on JetBlue and Lufthansa, 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 Boston Logan 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: Air Canada (85%), Austrian Airlines (85%), United Airlines (85%).

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

    The cheapest flight price from USA to London Heathrow Airport is £197. On average you can expect to pay £1,319. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £303.

  • 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 £63). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £431). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Chelmsford
Ipswich
Swindon
Bedford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for USA to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
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Boston to Gatwick flights
Atlanta to Heathrow flights
LaGuardia to Gatwick flights
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Pearson Intl to Gatwick flights
Mexico City to Heathrow flights
Hobby to Heathrow flights
Dulles Intl to Gatwick flights
Boston to London City flights
Miami to Heathrow flights
Denver to Heathrow flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Newark to Stansted flights
Dulles Intl to London City flights
Boston to Stansted flights
Pearson Intl to London City flights
Baltimore to Gatwick flights
Los Angeles to Gatwick flights
Pearson Intl to Stansted flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to Gatwick flights
Reagan-National to Gatwick flights
Newark to London City flights
Vancouver Intl to Gatwick flights
Newark to Luton flights
O'Hare Intl to London City flights
Tampa to Heathrow flights
O'Hare Intl to Stansted flights
Austin to Heathrow flights
Orlando to Gatwick flights

Top 10 airlines flying from USA to Heathrow

Discover the top 10 airlines that operate flights from USA 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 3 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£195Average£632FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£237Average£479FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapest£312Average£439FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£316Average£590FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£319Average£551FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£332Average£640FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£332Average£537FlexibilityNo cancel feeOn-time77%
Search Iberia flights
JetBlueCheapest£355Average£591FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£355Average£553FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£356Average£613FlexibilityNo cancel feeOn-time71%
Search American Airlines 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 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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