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Cheap flights from the United States to London Heathrow Airport from £177

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
5 Jul — 12 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 5 June 2026.

Fri 28/823:10
JFK
-
LHR
1 stop31h 45m
Icelandair
Mon 7/921:25
LHR
-
JFK
1 stop26h 55m
Icelandair
Deal found 31/5£538
Tue 1/918:55
JFK
-
LHR
1 stop33h 25m
Scandinavian Airlines
Thu 10/915:35
LHR
-
JFK
1 stop29h 05m
Scandinavian Airlines
Deal found 31/5£539
Mon 17/806:30
LGA
-
LHR
1 stop22h 30m
Multiple Airlines
Fri 28/807:40
LHR
-
LGA
2 stops14h 15m
Multiple Airlines
Deal found 1/6£540
Thu 17/917:10
JFK
-
LHR
1 stop16h 25m
Scandinavian Airlines
Mon 21/906:40
LHR
-
JFK
1 stop15h 20m
Scandinavian Airlines
Deal found 31/5£540
Sun 7/620:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Sun 14/613:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 2/6£540
Sun 2/811:35
LGA
-
LHR
1 stop14h 00m
Multiple Airlines
Fri 28/807:40
LHR
-
LGA
2 stops14h 15m
Multiple Airlines
Deal found 31/5£541
Tue 27/1023:15
JFK
-
LHR
Nonstop7h 00m
Multiple Airlines
Thu 29/1008:55
LHR
-
JFK
1 stop11h 20m
Multiple Airlines
Deal found 1/6£541
Sat 15/806:30
LGA
-
LHR
1 stop19h 00m
Multiple Airlines
Sat 22/807:40
LHR
-
LGA
2 stops15h 30m
Multiple Airlines
Deal found 4/6£542
Thu 1/1020:30
JFK
-
LHR
1 stop18h 50m
Icelandair
Wed 28/1012:15
LHR
-
JFK
1 stop10h 45m
Icelandair
Deal found 31/5£542
Mon 24/808:45
LGA
-
LHR
1 stop20h 15m
Multiple Airlines
Sat 29/807:40
LHR
-
LGA
2 stops15h 30m
Multiple Airlines
Deal found 31/5£543
Wed 16/917:10
JFK
-
LHR
1 stop11h 25m
Scandinavian Airlines
Mon 21/907:05
LHR
-
JFK
2 stops14h 55m
Scandinavian Airlines
Deal found 2/6£543
Tue 25/810:40
LGA
-
LHR
1 stop14h 50m
Multiple Airlines
Mon 31/807:40
LHR
-
LGA
2 stops15h 30m
Multiple Airlines
Deal found 4/6£543

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 5 June 2026.

Round-trip from

£538

One-way from

£177

Popular in

June

Cheapest in

September

Average price

£556

Good round-trip deal

£242 or less

Good one-way deal

£294 or less
Icelandair
  • Icelandair
  • 28/8-7/9
  • 2 total stops
  • 58h 40m total
  • USA to London
Search Deals
Icelandair
  • Icelandair
  • 19/7
  • 1 total stop
  • 10h 25m total
  • USA to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 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 5 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

Wed 18/11

18:00-17:30

1 stop18h 30m

London Heathrow

Mon 23/11

18:30-20:45

2 stops31h 15m

£573

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 18/11

18:30-12:55

2 stops13h 25m

London Heathrow

Fri 27/11

19:50-13:40

2 stops22h 50m

£580

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 21/10

22:40-10:35

Nonstop6h 55m

London Heathrow

Thu 29/10

10:20-20:05

1 stop13h 45m

£583

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 6/9

09:30-21:20

Nonstop6h 50m

London Heathrow

Fri 11/9

09:00-18:45

1 stop14h 45m

£586

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 4/9

09:35-21:40

Nonstop7h 05m

London Heathrow

Mon 7/9

07:35-12:59

1 stop10h 24m

£586

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 11/10

19:05-06:45

Nonstop6h 40m

London Heathrow

Thu 15/10

08:40-16:36

1 stop12h 56m

£590

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 17/8

20:35-08:50

Nonstop7h 15m

London Heathrow

Sat 22/8

08:40-14:35

1 stop10h 55m

£590

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 2/10

17:20-14:35

2 stops16h 15m

London Heathrow

Sat 10/10

17:00-13:15

2 stops25h 15m

£591

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 30/10

22:05-09:10

Nonstop7h 05m

London Heathrow

Thu 5/11

08:00-10:50

Nonstop7h 50m

£594

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 29/10

21:00-08:05

Nonstop7h 05m

London Heathrow

Wed 4/11

16:40-19:30

Nonstop7h 50m

£594

Flights are sorted by cheapest return flights first.

Deals found on 4/6

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, February is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £511). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £934). 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 5 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 16% 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 5 June 2026.

The most flights from US0 to LHR are scheduled on a Monday (54 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (54 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 158 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 30 May 2026.

Travellers seeking maximum savings on their USA to London Heathrow Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday 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 5 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
1,524 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

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
1,524 reviews
KLM
7.8
Good
1,524 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

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
689 reviews
KLM
7.8
Good
1,524 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

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
9,775 reviews
KLM
7.8
Good
1,524 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

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
11,644 reviews
KLM
7.8
Good
1,524 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

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
8,027 reviews
KLM
7.8
Good
1,524 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

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?

    TAP AIR PORTUGAL, Scandinavian Airlines, and Finnair can get you from USA to London Heathrow Airport in just under 6h 55m. Your travel time can differ by up to 11h 35m. 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 (90%), Air France (90%), Delta (90%).

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

    The cheapest flight price from USA to London Heathrow Airport is £368. On average you can expect to pay £1,499. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £382.

  • 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 £511). Flying from USA to London Heathrow Airport in June is currently the most expensive (average of £934). 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
Ilford
Slough
Northampton
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Romford
Guildford
Poole

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
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Newark to Gatwick flights
Dulles Intl to Heathrow flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
LaGuardia to Gatwick flights
Baltimore to Heathrow flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
O'Hare Intl to Heathrow flights
Boston to Gatwick flights
Seattle to Heathrow flights
Newark to Stansted flights
Pearson Intl to Heathrow flights
Newark to Luton flights
Vancouver Intl to Heathrow flights
Pearson Intl to Gatwick flights
Orlando to Heathrow flights
Mexico City to Heathrow flights
LaGuardia to Stansted flights
Atlanta to Heathrow flights
Hobby to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Miami to Heathrow flights
Boston to London City flights
Boston to Stansted flights
Los Angeles to Gatwick flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
Philadelphia to Heathrow flights
Los Angeles to Stansted flights
Denver to Heathrow flights
Reagan-National to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to London City flights
O'Hare Intl to Gatwick flights
Newark to London City flights
San Francisco to London City flights
O'Hare Intl to Stansted flights
San Francisco to Stansted flights
O'Hare Intl to London City 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 5 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£195Average£770FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest£234Average£586FlexibilityNo cancel feeOn-time75%
Search KLM flights
TAP AIR PORTUGALCheapest£237Average£478FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapest£311Average£440FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£332Average£591FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£332Average£646FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£350Average£431FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£352Average£513FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£353Average£589FlexibilityNo 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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