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Heathrow

$245+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
May 26 — Jun 21
Tue 5/26
Tue 6/2
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 Wednesday or Sunday and return on a Wednesday

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 April 26, 2026.

This LEVEL deal was found by Cheapflights users on 4/21. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:00 pm
BOS
-
LHR
1 stop16h 05m
LEVEL
Tue 9/158:50 pm
LHR
-
BOS
1 stop29h 25m
LEVEL
Deal found 4/21$587
This LEVEL deal was found by Cheapflights users on 4/21. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:50 pm
BOS
-
LHR
1 stop28h 20m
LEVEL
Thu 10/19:55 am
LHR
-
BOS
1 stop16h 20m
LEVEL
Deal found 4/21$590
This LEVEL deal was found by Cheapflights users on 4/24. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:00 pm
BOS
-
LHR
1 stop29h 10m
LEVEL
Wed 10/218:50 pm
LHR
-
BOS
1 stop29h 25m
LEVEL
Deal found 4/24$599
This LEVEL deal was found by Cheapflights users on 4/23. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:00 pm
BOS
-
LHR
1 stop29h 10m
LEVEL
Sat 10/178:50 pm
LHR
-
BOS
1 stop30h 15m
LEVEL
Deal found 4/23$605
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Wed 5/138:05 pm
BOS
-
LHR
1 stop14h 35m
Multiple Airlines
Fri 5/151:50 pm
LHR
-
BOS
1 stop11h 05m
Multiple Airlines
Deal found 4/22$608
This LEVEL deal was found by Cheapflights users on 4/25. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:00 pm
BOS
-
LHR
1 stop29h 10m
LEVEL
Sun 9/209:55 am
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 4/25$609
This LEVEL deal was found by Cheapflights users on 4/21. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:50 pm
BOS
-
LHR
1 stop28h 20m
LEVEL
Thu 9/179:55 am
LHR
-
BOS
1 stop16h 20m
LEVEL
Deal found 4/21$614
This Air Canada deal was found by Cheapflights users on 4/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:40 pm
BOS
-
LHR
1 stop21h 20m
Air Canada
Fri 5/298:40 am
LHR
-
BOS
2 stops17h 47m
Air Canada
Deal found 4/22$615
This Fareboom deal was found by Cheapflights users on 4/21. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:15 pm
BOS
-
LHR
2 stops13h 20m
Azores Airlines
Thu 5/288:00 am
LHR
-
BOS
2 stops16h 50m
Azores Airlines
Deal found 4/21$616
This LEVEL deal was found by Cheapflights users on 4/25. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:50 pm
BOS
-
LHR
1 stop28h 20m
LEVEL
Thu 10/19:55 am
LHR
-
BOS
1 stop16h 20m
LEVEL
Deal found 4/25$618
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:25 pm
BOS
-
LHR
1 stop21h 35m
United Airlines
Tue 8/251:50 pm
LHR
-
BOS
1 stop30h 20m
United Airlines
Deal found 4/23$619

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 April 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$587
(LEVEL)

One-way from

$245
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$679

Good round-trip deal

$765 or less

Good one-way deal

$381 or less
Provider with most accurate pricing for Boston Logan Intl-London Heathrow flight deals.
Search Deals
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. 17% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 26, 2026.
Use the filters below to find and compare flights from Boston to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/17

9:30 pm-9:15 am

Nonstop6h 45m

London Heathrow

Sat 10/24

6:30 am-4:36 pm

1 stop15h 06m

$754

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 8/5

7:10 pm-6:45 am

Nonstop6h 35m

London Heathrow

Sat 8/22

9:40 am-12:19 pm

Nonstop7h 39m

$761

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 5/14

11:10 pm-10:40 am

Nonstop6h 30m

London Heathrow

Sun 6/14

4:20 pm-7:05 pm

Nonstop7h 45m

$821

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 7/28

6:50 pm-10:00 am

1 stop10h 10m

London Heathrow

Mon 8/3

8:40 am-3:10 pm

1 stop11h 30m

$877

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 7/22

3:35 pm-10:00 am

1 stop13h 25m

London Heathrow

Fri 7/31

12:40 pm-10:38 pm

2 stops14h 58m

$902

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 5/27

6:00 am-9:25 pm

1 stop10h 25m

London Heathrow

Sat 5/30

10:50 am-5:40 pm

1 stop11h 50m

$913
Quickest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 7/12

11:10 pm-10:40 am

Nonstop6h 30m

London Heathrow

Mon 7/20

6:55 pm-9:20 pm

Nonstop7h 25m

$921

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 5/24

9:30 pm-9:15 am

Nonstop6h 45m

London Heathrow

Mon 6/15

6:55 pm-9:20 pm

Nonstop7h 25m

$921

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 7/9

9:30 pm-9:15 am

Nonstop6h 45m

London Heathrow

Tue 7/14

9:40 am-12:15 pm

Nonstop7h 35m

$921

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 6/8

11:10 pm-10:40 am

Nonstop6h 30m

London Heathrow

Fri 6/19

6:55 pm-9:20 pm

Nonstop7h 25m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 April.
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
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice 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?

Booking 68 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, January is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $527). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $866). 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 April 26, 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.

How much does it cost to fly round-trip from Boston to London Heathrow Airport?

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 April 26, 2026.
See what other customers who have flown with Delta,Virgin Atlantic, andAmerican 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
8,458 reviews

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

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
8,458 reviews
Delta
7.9
Good
8,458 reviews

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

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
7.4
Good
688 reviews
Delta
7.9
Good
8,458 reviews

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

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
7.1
Good
11,677 reviews
Delta
7.9
Good
8,458 reviews

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

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
3,196 reviews
Delta
7.9
Good
8,458 reviews

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

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
7,915 reviews
Delta
7.9
Good
8,458 reviews

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

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. 16 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 28 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 6h 30m. Fly via Delta, KLM, or United Airlines 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 ($263), Scandinavian Airlines ($423), and TAP AIR PORTUGAL ($425) 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 $164. Air France flights start at $174 while deals on JetBlue start at $195 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: Scandinavian Airlines (95%), KLM (93%), Delta( 91%).

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

    The cheapest flight price from Boston to London Heathrow Airport is $308. On average you can expect to pay $2,029. The most popular route, (Boston Logan Intl - London Heathrow), can usually be booked for $513.

  • 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, January is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $527). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $866). 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
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

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 April 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$263Average$609FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$423Average$754FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$425Average$450FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$441Average$531FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$460Average$646FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$463Average$607FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$466Average$666FlexibilityNo cancel feeOn-time76%
FinnairCheapest$466Average$640FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$471Average$708FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$475Average$660FlexibilityNo cancel feeOn-time77%

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