What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?

For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £120. Users have also found prices from £122 and £131 on Icelandair and Virgin Atlantic, respectively.

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.

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).

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 cheapest flights from USA to London Heathrow Airport?

The cheapest flight price from USA to London Heathrow Airport is £279. On average you can expect to pay £1,658. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £1.

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 (89%), Air France (89%), Delta (89%).

What are the most popular airlines that fly from USA to London Heathrow Airport?

The most popular airlines flying from USA to London Heathrow Airport are American Airlines, Air France and Finnair. Something to consider prior to booking your flight.

How far in advance should I book a flight from USA to London Heathrow Airport?

To save on the cost of your flight from USA to London Heathrow Airport, book at least 31 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £460 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £514.

What is the cheapest month to fly from USA to London Heathrow Airport?

Our data shows that January tends to be the cheapest month to fly to London Heathrow Airport from USA. Users have commonly found prices around £421 for the month, but tickets can be as low as £280. Due to multiple factors, prepare for potentially higher prices in December.

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.

£120+ Flights from the United States to London Heathrow Airport

Cheap flight deals from USA to Heathrow

Round-trip from	£351
One-way from	£120
Popular in	December
Cheapest in	January
Average price	£475
Good round-trip deal	£357 or less
Good one-way deal	£191 or less

Aer Lingus
20/10-2/11
2 total stops
21h 30m total
USA to London

Search Deals

TAP AIR PORTUGAL
28/7
1 total stop
19h 50m total
USA to London

Search Deals

High demand for flights, 4% potential price rise

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 July 2025

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

Find flight deals from USA to Heathrow

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 18 July 2025.

Mon 20/1022:05JFK - LHR

1 stop14h 40mTAP AIR PORTUGAL

Thu 6/1112:25LHR - JFK

1 stop12h 40mTAP AIR PORTUGAL

Deal found 17/7£351

Wed 3/918:25JFK - LHR

1 stop9h 40mAer Lingus

Mon 8/909:50LHR - JFK

1 stop12h 00mAer Lingus

Deal found 18/7£351

Sun 24/807:05LGA - LHR

1 stop21h 55mAir Canada

Sat 30/806:50LHR - LGA

2 stops12h 55mAir Canada

Deal found 16/7£354

Fri 5/900:50JFK - LHR

1 stop10h 25mVirgin Atlantic

Sun 7/909:40LHR - JFK

1 stop13h 59mVirgin Atlantic

Deal found 17/7£354

Mon 25/819:29LGA - LHR

1 stop10h 11mLufthansa

Sat 30/809:30LHR - LGA

1 stop12h 25mLufthansa

Deal found 17/7£355

Fri 19/915:30LGA - LHR

1 stop10h 00mMultiple Airlines

Sat 27/906:00LHR - LGA

2 stops17h 30mMultiple Airlines

Deal found 17/7£357

Sun 17/809:00JFK - LHR

1 stop20h 00mMultiple Airlines

Sat 6/906:00LHR - JFK

1 stop11h 50mMultiple Airlines

Deal found 16/7£359

Fri 26/918:55JFK - LHR

1 stop33h 25mScandinavian Airlines

Mon 29/906:40LHR - JFK

2 stops15h 20mScandinavian Airlines

Deal found 18/7£363

Wed 20/815:25JFK - LHR

1 stop12h 40mBritish Airways

Tue 30/909:30LHR - JFK

1 stop14h 35mBritish Airways

Deal found 17/7£366

Wed 13/822:55JFK - LHR

Nonstop7h 10mIberia

Thu 27/1109:55LHR - JFK

1 stop17h 05mIberia

Deal found 18/7£367

Tue 28/1016:11BOS - LHR

1 stop11h 39mBritish Airways

Sun 2/1107:30LHR - BOS

1 stop12h 45mBritish Airways

Deal found 17/7£368

Thu 11/920:05BOS - LHR

Nonstop6h 45mIberia

Tue 16/911:30LHR - BOS

1 stop13h 20mIberia

Deal found 16/7£369

Best flights from USA to Heathrow
Discover carefully curated flight deals from USA to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 July 2025.

Mon 20/1016:55JFK - LHR

1 stop10h 05mAer Lingus

Sun 2/1110:00LHR - JFK

1 stop11h 25mAer Lingus

Deal found 18/7£351

Sun 24/807:05LGA - LHR

1 stop21h 55mAir Canada

Sat 30/806:50LHR - LGA

2 stops12h 55mAir Canada

Deal found 16/7£354

Fri 5/900:50JFK - LHR

1 stop10h 25mVirgin Atlantic

Sun 7/909:40LHR - JFK

1 stop13h 59mVirgin Atlantic

Deal found 17/7£354

Mon 25/819:29LGA - LHR

1 stop10h 11mLufthansa

Sat 30/809:30LHR - LGA

1 stop12h 25mLufthansa

Deal found 17/7£355

Fri 19/915:30LGA - LHR

1 stop10h 00mMultiple Airlines

Sat 27/906:00LHR - LGA

2 stops17h 30mMultiple Airlines

Deal found 17/7£357

Wed 10/922:05JFK - LHR

1 stop12h 30mTAP AIR PORTUGAL

Sun 21/919:50LHR - JFK

1 stop29h 15mTAP AIR PORTUGAL

Deal found 18/7£357

Fri 26/918:55JFK - LHR

1 stop33h 25mScandinavian Airlines

Mon 29/906:40LHR - JFK

2 stops15h 20mScandinavian Airlines

Deal found 18/7£363

Wed 20/815:25JFK - LHR

1 stop12h 40mBritish Airways

Tue 30/909:30LHR - JFK

1 stop14h 35mBritish Airways

Deal found 17/7£366

Wed 10/919:30JFK - LHR

Nonstop7h 15mIberia

Sun 14/909:55LHR - JFK

1 stop16h 45mIberia

Deal found 18/7£367

Fri 19/906:00BOS - LHR

1 stop19h 30mUnited Airlines

Mon 29/908:40LHR - BOS

1 stop11h 45mUnited Airlines

Deal found 17/7£371

Wed 13/808:45JFK - LHR

Nonstop7h 00mJetBlue

Thu 27/1112:20LHR - JFK

Nonstop8h 32mJetBlue

Deal found 18/7£377

Thu 21/822:45BOS - LHR

Nonstop6h 45mDelta

Thu 28/806:15LHR - BOS

1 stop19h 05mDelta

Deal found 17/7£378

Direct flights from USA to Heathrow
Explore direct flight options from USA to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 July 2025.

Thu 31/708:45JFK - LHR

Nonstop7h 00mJetBlue

Wed 20/808:15LHR - JFK

Nonstop8h 04mJetBlue

Deal found 16/7£356

Mon 25/821:30JFK - LHR

Nonstop7h 30mVirgin Atlantic

Wed 3/912:25LHR - JFK

Nonstop8h 05mVirgin Atlantic

Deal found 16/7£361

Mon 11/822:45BOS - LHR

Nonstop6h 45mVirgin Atlantic

Fri 29/809:40LHR - BOS

Nonstop7h 35mVirgin Atlantic

Deal found 17/7£368

Tue 14/1019:40BOS - LHR

Nonstop6h 40mBritish Airways

Tue 21/1020:10LHR - BOS

Nonstop7h 30mBritish Airways

Deal found 18/7£369

Sat 27/907:50JFK - LHR

Nonstop6h 55mBritish Airways

Thu 23/1019:40LHR - JFK

Nonstop7h 50mBritish Airways

Deal found 18/7£369

Tue 12/818:40BOS - LHR

Nonstop6h 50mJetBlue

Tue 26/808:25LHR - BOS

Nonstop7h 39mJetBlue

Deal found 15/7£378

Thu 21/820:10BOS - LHR

Nonstop6h 40mIberia

Mon 25/808:55LHR - BOS

Nonstop7h 30mIberia

Deal found 17/7£379

Sat 6/921:25EWR - LHR

Nonstop7h 05mIberia

Mon 6/1011:10LHR - EWR

Nonstop7h 45mIberia

Deal found 16/7£381

Thu 4/917:35EWR - LHR

Nonstop7h 20mUnited Airlines

Thu 11/913:00LHR - EWR

Nonstop8h 15mUnited Airlines

Deal found 17/7£382

Wed 29/1022:15BOS - LHR

Nonstop6h 55mDelta

Mon 24/1114:35LHR - BOS

Nonstop8h 00mDelta

Deal found 16/7£383

Mon 5/121:35EWR - LHR

Nonstop6h 55mBritish Airways

Sat 17/110:55LHR - EWR

Nonstop8h 10mBritish Airways

Deal found 17/7£383

Sat 16/820:10BOS - LHR

Nonstop6h 40mFinnair

Sun 24/808:55LHR - BOS

Nonstop7h 30mFinnair

Deal found 18/7£384

Last-minute flights from USA to Heathrow
Discover last-minute flight deals from USA to Heathrow. Data last updated 18 July 2025 and is based on user searches.

Mon 21/714:29JFK - LHR

1 stop11h 16mVirgin Atlantic

Wed 23/706:30LHR - JFK

1 stop13h 55mVirgin Atlantic

Deal found 18/7£352

Wed 23/708:10JFK - LHR

Nonstop6h 50mVirgin Atlantic

Thu 24/715:00LHR - JFK

1 stop13h 15mVirgin Atlantic

Deal found 16/7£360

Thu 24/717:45LGA - LHR

1 stop11h 15mAir Canada

Wed 24/914:05LHR - LGA

1 stop10h 32mAir Canada

Deal found 15/7£365

Thu 24/708:45JFK - LHR

Nonstop7h 00mJetBlue

Thu 21/811:55LHR - JFK

Nonstop8h 18mJetBlue

Deal found 18/7£377

Thu 24/723:25JFK - LHR

Nonstop7h 00mDelta

Thu 21/806:30LHR - JFK

1 stop10h 45mDelta

Deal found 18/7£380

Thu 24/712:15BOS - LHR

1 stop13h 20mAir Canada

Sun 31/806:50LHR - BOS

2 stops12h 45mAir Canada

Deal found 17/7£381

Thu 24/707:10BOS - LHR

1 stop9h 30mBritish Airways

Sun 31/808:55LHR - BOS

Nonstop7h 30mBritish Airways

Deal found 18/7£383

Thu 24/715:30EWR - LHR

1 stop13h 30mUnited Airlines

Fri 22/812:00LHR - EWR

Nonstop8h 15mUnited Airlines

Deal found 17/7£384

Fri 25/705:50BOS - LHR

1 stop19h 40mMultiple Airlines

Tue 9/913:45LHR - BOS

1 stop11h 10mMultiple Airlines

Deal found 17/7£371

Fri 25/720:15BOS - LHR

Nonstop6h 50mDelta

Tue 9/906:15LHR - BOS

1 stop12h 20mDelta

Deal found 16/7£379

Sat 26/720:55JFK - LHR

Nonstop7h 15mBritish Airways

Fri 22/818:05LHR - JFK

Nonstop7h 55mBritish Airways

Deal found 18/7£379

Sun 27/709:00JFK - LHR

1 stop16h 30mMultiple Airlines

Tue 30/908:45LHR - JFK

1 stop12h 50mMultiple Airlines

Deal found 17/7£356

One-way flights from USA to Heathrow
Search for one-way flight options from USA to Heathrow. Find affordable one-way fares based on user searches. Data last updated 18 July 2025.

Mon 28/722:05JFK - LHR

1 stop19h 50mTAP AIR PORTUGAL

Deal found 17/7£120

Sun 7/923:10JFK - LHR

1 stop31h 45mIcelandair

Deal found 16/7£122

Mon 28/720:30JFK - LHR

Nonstop7h 20mVirgin Atlantic

Deal found 17/7£131

Wed 13/807:05LGA - LHR

1 stop21h 55mAir Canada

Deal found 18/7£134

Sun 17/820:59JFK - LHR

Nonstop7h 31mJetBlue

Deal found 17/7£135

Sun 21/915:25LAX - LHR

1 stop31h 05mJetBlue

Deal found 18/7£137

Sun 27/709:00JFK - LHR

1 stop20h 00mAir Canada

Deal found 17/7£137

Wed 30/710:30JFK - LHR

2 stops17h 05mLufthansa

Deal found 16/7£138

Sun 17/817:00LGA - LHR

1 stop10h 05mDelta

Deal found 18/7£139

Tue 5/815:30LGA - LHR

1 stop10h 00mLufthansa

Deal found 18/7£143

Sun 17/815:30LGA - LHR

1 stop13h 30mUnited Airlines

Deal found 18/7£148

Tue 29/709:00JFK - LHR

1 stop16h 30mUnited Airlines

Deal found 17/7£148

Cheapflights Fare Finder

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

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 6/10

22:05-18:50

1 stop15h 45m

London Heathrow

Tue 14/10

11:20-20:05

1 stop13h 45m

£351

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 3/9

18:25-09:05

1 stop9h 40m

London Heathrow

Tue 9/9

09:50-16:50

1 stop12h 00m

£351

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 24/8

07:05-10:00

1 stop21h 55m

London Heathrow

Sat 30/8

06:50-14:45

2 stops12h 55m

£354

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 5/9

00:50-16:15

1 stop10h 25m

London Heathrow

Sun 7/9

09:40-18:39

1 stop13h 59m

£354

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Mon 25/8

19:29-10:40

1 stop10h 11m

London Heathrow

Sat 30/8

09:30-16:55

1 stop12h 25m

£355

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Fri 19/9

15:30-06:30

1 stop10h 00m

London Heathrow

Sat 27/9

06:00-18:30

2 stops17h 30m

£357

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 17/8

09:00-10:00

1 stop20h 00m

London Heathrow

Fri 12/9

06:00-12:50

1 stop11h 50m

£359

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 19/9

21:30-09:40

Nonstop7h 10m

London Heathrow

Wed 24/9

10:20-19:05

1 stop13h 45m

£363

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 26/9

18:55-09:20

1 stop33h 25m

London Heathrow

Mon 29/9

06:40-17:00

2 stops15h 20m

£363

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 10/9

09:45-21:40

Nonstop6h 55m

London Heathrow

Tue 16/9

09:55-21:40

1 stop16h 45m

£367

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 60 results

...

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, January is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £112). Flying from USA 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 US to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to London Heathrow Airport as you normally would.

Weekly flight availability from USA to London Heathrow Airport

The most flights from US0 to LHR are scheduled on a Monday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Delta, KLM, andAustrian 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.

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,958 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,374 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Austrian Airlines

7.6

Good

816 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,316 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air France

7.5

Good

1,465 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?
For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £120. Users have also found prices from £122 and £131 on Icelandair and Virgin Atlantic, 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 (89%), Air France (89%), Delta (89%).
What are the cheapest flights from USA to London Heathrow Airport?
The cheapest flight price from USA to London Heathrow Airport is £279. On average you can expect to pay £1,658. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £1.
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, January is the cheapest month in which you can book a flight from USA to London Heathrow Airport (average of £112). Flying from USA 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

Milton Keynes

Croydon

Hounslow

Deal

Northampton

Gatwick

Slough

Luton

Wembley

Crawley

Eastbourne

Ilford

Hayes

Ipswich

Southend-on-Sea

Folkestone

Watford

Winchester

Swindon

Maidstone

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from USA to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£230	Average£545	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Virgin Atlantic	Cheapest£277	Average£569	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
KLM	Cheapest£288	Average£525	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Delta	Cheapest£295	Average£471	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
JetBlue	Cheapest£296	Average£656	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Finnair	Cheapest£304	Average£668	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Scandinavian Airlines	Cheapest£304	Average£448	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Air Canada	Cheapest£304	Average£521	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	Cheapest£308	Average£566	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£319	Average£636	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from the United States to London Heathrow Airport from £120

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.

Cheap flight deals from USA to Heathrow

Keep the following information in mind while searching for USA to Heathrow flight deals. Data was last updated 18 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from USA to Heathrow

Cheapest flights from USA to HeathrowExplore 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 18 July 2025.

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 18 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United States to London Heathrow Airport that are best for you.

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.

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?

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 18 July 2025.

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 18 July 2025.

Reviews of airlines servicing Heathrow

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.

What are the cheapest airlines to fly from USA to London Heathrow Airport one-way?

What are the most popular routes from USA to London Heathrow Airport?

What are the most reliable airlines from USA to London Heathrow Airport?

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

Can I find deals for flights from USA to Heathrow that include hotel bookings?

How can I find direct flights from USA to Heathrow?

Can I find deals for business class flights from USA to Heathrow?

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

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Alternative routes for USA to Heathrow

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Top 10 airlines flying from USA to Heathrow

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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 18 July 2025.