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Heathrow

$224+ Cheap flights from Boston (BOS) to Heathrow (LHR)

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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
Mar 23 — Mar 301
Mon 3/23
Mon 3/30
1 adult, Economy
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Find cheap flights from Boston to Heathrow with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Boston Logan Intl to London Heathrow are usually found in January or October, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Boston to Heathrow

Cheapest flights from Boston to Heathrow
Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2026.

This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:00 pm
BOS
-
LHR
1 stop31h 55m
Icelandair
Mon 4/139:25 pm
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 2/20$487
This Booking.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:25 pm
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 3/1710:00 am
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 2/21$488
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:25 pm
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Thu 3/1910:00 am
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 2/20$489
This Booking.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/278:25 pm
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 3/319:50 am
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 2/19$490
This Booking.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:40 pm
BOS
-
LHR
1 stop20h 55m
Multiple Airlines
Wed 2/251:45 pm
LHR
-
BOS
1 stop11h 35m
Multiple Airlines
Deal found 2/18$491
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/183:35 pm
BOS
-
LHR
1 stop11h 35m
Multiple Airlines
Mon 3/237:25 pm
LHR
-
BOS
1 stop23h 40m
Multiple Airlines
Deal found 2/17$492
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/89:40 pm
BOS
-
LHR
1 stop14h 10m
Lufthansa
Thu 3/1211:10 am
LHR
-
BOS
1 stop12h 25m
Lufthansa
Deal found 2/19$493
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:40 pm
BOS
-
LHR
1 stop11h 20m
Lufthansa
Wed 3/411:10 am
LHR
-
BOS
1 stop12h 25m
Lufthansa
Deal found 2/20$494
This FlightHub deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:25 pm
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 3/2410:00 am
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 2/18$495
This Booking.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:15 pm
BOS
-
LHR
1 stop11h 10m
Aer Lingus
Wed 3/47:50 am
LHR
-
BOS
1 stop11h 05m
Aer Lingus
Deal found 2/19$496
This KAYAK deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:50 pm
BOS
-
LHR
1 stop10h 05m
Icelandair
Wed 4/299:25 pm
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 2/18$497
This Expedia deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:15 pm
BOS
-
LHR
Nonstop6h 45m
Iberia
Mon 3/211:25 am
LHR
-
BOS
1 stop13h 25m
Iberia
Deal found 2/20$498

Find flight deals from Boston to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(Mytrip)

One-way from

$224
(KLM)

Popular in

June

Cheapest in

January

Average price

$579

Good round-trip deal

$535 or less

Good one-way deal

$281 or less
Provider with most accurate pricing for Boston Logan Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-London Heathrow flights.
Search Deals
From Boston Logan Intl to London Heathrow
Search Deals
One-way flight from Boston Logan Intl to London Heathrow
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 2,558,603 searches. Data last updated February 21, 2026.
Use the filters below to find and compare flights from Boston to London Heathrow Airport that are best for you.

Fly from

Boston

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 3/19

3:35 pm-7:10 am

1 stop11h 35m

London Heathrow

Tue 3/31

8:45 am-3:10 pm

1 stop11h 25m

$513

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 3/30

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Wed 4/8

9:25 pm-9:45 pm

1 stop29h 20m

$513

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 3/12

6:00 am-8:35 pm

1 stop10h 35m

London Heathrow

Thu 3/19

1:45 pm-9:20 pm

1 stop11h 35m

$514

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/18

5:45 am-10:50 am

1 stop25h 05m

London Heathrow

Sun 3/29

2:05 pm-9:52 am

1 stop24h 47m

$517

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 3/28

6:40 pm-8:00 pm

1 stop21h 20m

London Heathrow

Wed 4/15

1:50 pm-3:10 pm

1 stop30h 20m

$526

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 3/20

9:00 pm-7:50 am

Nonstop6h 50m

London Heathrow

Tue 3/31

4:50 pm-7:35 pm

Nonstop7h 45m

$527

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/18

3:35 pm-7:10 am

1 stop11h 35m

London Heathrow

Thu 4/2

1:50 pm-7:55 pm

1 stop11h 05m

$529

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 3/22

2:00 pm-7:50 am

1 stop13h 50m

London Heathrow

Tue 3/24

9:40 am-1:25 pm

Nonstop7h 45m

$530

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 4/24

3:35 pm-10:00 am

1 stop13h 25m

London Heathrow

Sat 5/2

10:50 am-5:40 pm

1 stop11h 50m

$534

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/26

9:30 pm-9:15 am

Nonstop6h 45m

London Heathrow

Wed 5/13

9:55 am-4:33 pm

1 stop11h 38m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 22 results
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2
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Compare providers for flights from Boston to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Heathrow in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Boston with our price prediction graph.
Estimated round-trip 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 Boston to London Heathrow Airport

How far ahead should I book a flight from Boston to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Heathrow. Price data was last updated on February 20, 2026.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $435). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $594). 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 BOS to LHR?

Find hourly flight availability from Boston 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 February 21, 2026.

When flying from Boston 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.

The best insider tips for Boston to London Heathrow Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to London Heathrow Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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 February 21, 2026.
See what other customers who have flown with Delta, Virgin Atlantic, and American Airlines from Boston to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,228 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,228 reviews
Delta
7.9
Good
8,228 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
679 reviews
Delta
7.9
Good
8,228 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,335 reviews
Delta
7.9
Good
8,228 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Iberia
7.0
Good
3,118 reviews
Delta
7.9
Good
8,228 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,756 reviews
Delta
7.9
Good
8,228 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to London Heathrow?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to London Heathrow. 17 airlines have flights from Logan Intl to London Heathrow on a regular basis. Booking flights from Boston Logan Intl to London Heathrow should not be difficult; the airport handles an average of 29 outbound flights to London Heathrow per day.

  • How long is the flight from Boston to London Heathrow Airport?

    There are many flights that can get you from Boston to London Heathrow Airport in 10h 05m. Fly via United Airlines or Icelandair to get the fastest option. Airlines will cover a distance of 3254 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to London Heathrow Airport round-trip?

    According to our current data, JetBlue ($258), SWISS ($293), and Scandinavian Airlines ($393) offers the cheapest pricing from Boston to London Heathrow Airport. JetBlue is 58% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $166. JetBlue flights start at $183 while deals on TAP AIR PORTUGAL start at $186 one-way.

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

    Before booking your flight to London Heathrow Airport from Boston, check out the most reliable airlines to get you to your destination on time: Gulf Air (91%), Malaysia Airlines (87%), American Airlines( 80%).

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

    The cheapest flight price from Boston to London Heathrow Airport is $224. On average you can expect to pay $1,987. The most popular route, (Boston Logan Intl - London Heathrow), can usually be booked for $390.

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

    Yes. In addition to deals on Boston to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Heathrow?

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $435). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $594). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Boston to Heathrow

Discover the top 10 airlines that operate flights from Boston 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 2,558,603 searches. Data last updated February 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$258Average$602FlexibilityNo cancel feeOn-time62%
SWISSCheapest$293Average$617FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$393Average$657FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$425Average$454FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$441Average$526FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$459Average$615FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$466Average$648FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$466Average$651FlexibilityNo cancel feeOn-time76%
FinnairCheapest$467Average$608FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$470Average$615FlexibilityNo cancel feeOn-time77%

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