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Cheap flights from the United States to London Heathrow Airport from £171

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
16 Jul — 23 Jul1
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 16 June 2026.

Wed 22/720:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Wed 29/713:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 16/6£535
Sat 15/816:15
JFK
-
LHR
1 stop10h 40m
SWISS
Mon 17/807:00
LHR
-
JFK
1 stop12h 20m
SWISS
Deal found 14/6£538
Thu 27/820:00
LGA
-
LHR
1 stop9h 40m
Virgin Atlantic
Sat 29/806:30
LHR
-
LGA
2 stops14h 55m
Virgin Atlantic
Deal found 11/6£539
Thu 23/723:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Wed 29/713:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 12/6£539
Fri 4/918:00
LGA
-
LHR
1 stop11h 40m
Virgin Atlantic
Sun 6/906:30
LHR
-
LGA
2 stops15h 00m
Virgin Atlantic
Deal found 16/6£540
Wed 22/720:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Tue 28/713:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 11/6£540
Wed 19/806:30
LGA
-
LHR
1 stop22h 30m
Multiple Airlines
Mon 24/807:40
LHR
-
LGA
2 stops14h 15m
Multiple Airlines
Deal found 14/6£540
Sun 19/723:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Tue 28/713:05
LHR
-
JFK
1 stop14h 00m
Icelandair
Deal found 12/6£540
Mon 3/806:30
LGA
-
LHR
1 stop22h 30m
Multiple Airlines
Mon 24/807:40
LHR
-
LGA
2 stops14h 15m
Multiple Airlines
Deal found 14/6£541
Sun 19/723:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Sun 26/721:25
LHR
-
JFK
1 stop29h 40m
Icelandair
Deal found 12/6£541
Sun 16/817:35
LGA
-
LHR
1 stop11h 25m
Multiple Airlines
Sun 23/822:00
LHR
-
LGA
2 stops23h 55m
Multiple Airlines
Deal found 11/6£542
Wed 26/823:10
JFK
-
LHR
1 stop31h 45m
Icelandair
Sun 6/913:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 11/6£542

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 16 June 2026.

Round-trip from

£538

One-way from

£171

Popular in

June

Cheapest in

September

Average price

£637

Good round-trip deal

£243 or less

Good one-way deal

£257 or less
SWISS
  • SWISS
  • 15/8-17/8
  • 2 total stops
  • 23h 00m total
  • USA to London
Search Deals
Icelandair
  • Icelandair
  • 28/7
  • 1 total stop
  • 16h 00m total
  • USA to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£79 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 June 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 16 June 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

Cheapest return flight

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 20/9

17:40-14:35

2 stops15h 55m

London Heathrow

Mon 5/10

21:05-15:35

2 stops23h 30m

£578

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 22/10

18:55-14:35

2 stops14h 40m

London Heathrow

Wed 28/10

06:40-16:45

2 stops14h 05m

£578

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 30/9

23:10-22:00

2 stops17h 50m

London Heathrow

Fri 16/10

08:00-21:10

2 stops18h 10m

£580

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 17/9

18:20-06:25

Nonstop7h 05m

London Heathrow

Sun 27/9

10:20-19:10

1 stop13h 50m

£584

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 20/9

13:25-06:45

1 stop12h 20m

London Heathrow

Mon 28/9

08:40-14:35

1 stop10h 55m

£593
Fastest return journey

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 20/8

07:25-18:55

Nonstop6h 30m

London Heathrow

Mon 24/8

14:30-17:00

Nonstop7h 30m

£595

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 10/10

09:35-21:25

Nonstop6h 50m

London Heathrow

Sat 31/10

08:00-11:50

Nonstop7h 50m

£595

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 2/10

21:30-09:15

Nonstop6h 45m

London Heathrow

Mon 12/10

18:55-21:20

Nonstop7h 25m

£595

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 30/9

09:35-21:25

Nonstop6h 50m

London Heathrow

Wed 7/10

07:45-10:30

Nonstop7h 45m

£595

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 25/8

07:50-19:45

Nonstop6h 55m

London Heathrow

Sat 5/9

15:20-18:20

Nonstop8h 00m

£595

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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, October is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £503). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £954). 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 16 June 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 15% 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 16 June 2026.

The most flights from US0 to LHR are scheduled on a Monday (54 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (50 on average).

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 159 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 Friday 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 29 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 13 June 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. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 16 June 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
7.8
Good
1,530 reviews
Check prices

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,530 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.5
Good
690 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
United Airlines
7.4
Good
9,845 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
American Airlines
7.1
Good
11,667 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,054 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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?

    Scandinavian Airlines, TAP AIR PORTUGAL, and Finnair can get you from USA to London Heathrow Airport in just under 7h 05m. Your travel time can differ by up to 10h 45m. The distance between USA and London Heathrow Airport is about 3440 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 £66. 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 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 (92%), Air France (92%), Delta (92%).

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

    The cheapest flight price from USA to London Heathrow Airport is £271. On average you can expect to pay £1,474. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £398.

  • 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, October is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £503). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £954). 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Guildford
Romford
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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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
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Dulles Intl to Heathrow flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
Baltimore to Heathrow flights
LaGuardia to Gatwick flights
Pearson Intl to Heathrow flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Newark to Stansted flights
Newark to Luton flights
Seattle to Heathrow flights
Boston to Gatwick flights
Pearson Intl to Gatwick flights
Newark to London City flights
Vancouver Intl to Heathrow flights
Orlando to Heathrow flights
Mexico City to Heathrow flights
Atlanta to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Miami to Heathrow flights
Hobby to Heathrow flights
Dulles Intl to London City flights
Boston to London City flights
LaGuardia to Stansted flights
Boston to Stansted flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
Reagan-National to Gatwick flights
Los Angeles to Gatwick flights
Denver to Heathrow flights
Vancouver Intl to Gatwick flights
Los Angeles to Stansted flights
George Bush Intcntl to Heathrow flights
Pearson Intl to Stansted flights
Pierre Elliott Trudeau Intl to Heathrow flights
O'Hare Intl to Gatwick flights
Pearson Intl to London City flights
Los Angeles to London City flights
San Francisco 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 16 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£195Average£771FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest£234Average£578FlexibilityNo cancel feeOn-time75%
Search KLM flights
TAP AIR PORTUGALCheapest£237Average£478FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapest£311Average£438FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£332Average£649FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£332Average£659FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£350Average£448FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£352Average£434FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£353Average£614FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£354Average£593FlexibilityNo cancel feeOn-time62%
Search JetBlue 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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