What is the most punctual flight time for London to Boston flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What is the cheapest airline that flies from London Heathrow to Boston Logan Intl?

JetBlue, United Airlines, and British Airways are the most popular carriers operating from London Heathrow to Boston Logan Intl

How many flights depart from London Heathrow Airport to Boston on average per day?

As of November 2025, 31 flights take off from London Heathrow Airport and land in Boston each day. The most common flight departure time for this route is 09:00, with 41% of daily flights taking off in the afternoon.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

How often are flights from London to Boston delayed?

Historically, on average around 9% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

How many flights depart from London Heathrow Airport to Boston on average per week?

As of November 2025, 218 flights take off from London Heathrow Airport and land in Boston each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

Which airline has the best punctuality record on London to Boston flights?

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

When did momondo last update prices for flights from London Heathrow Airport to Boston Logan Intl Airport?

Prices for flights from London Heathrow Airport to Boston Logan Intl Airport are updated daily.

How old do you have to be to fly from London Heathrow Airport to Boston Logan Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Boston Logan Intl Airport.

What documentation or ID do you need to fly to Boston Logan Intl Airport?

The necessary travel and health documents for your Boston Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€351 Cheap Flights from London Heathrow Airport to Boston in 2025/26

1 adult

0 bags

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from London Heathrow Airport to Boston

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

12:25 - 20:10LHR-BOS

12h 45m1 stop

22:25 - 17:30BOS-LHR

14h 05m1 stop

€402TAP AIR PORTUGAL

Find Deal

Sat, 6 Dec - Sat, 31 Jan

12:25 - 20:10LHR-BOS

12h 45m1 stop

22:45 - 17:30BOS-LHR

13h 45m1 stop

€403TAP AIR PORTUGAL

Find Deal

Thu, 4 Dec - Thu, 11 Dec

20:35 - 10:35LHR-BOS

19h 00m1 stop

20:50 - 19:30BOS-LHR

18h 40m1 stop

€406Icelandair

Find Deal

Fri, 20 Feb - Wed, 11 Mar

12:15 - 17:50LHR-BOS

10h 35m1 stop

19:50 - 10:50BOS-LHR

10h 00m1 stop

€407Icelandair

Find Deal

Sat, 7 Feb - Wed, 18 Feb

06:40 - 15:50LHR-BOS

14h 10m1 stop

18:35 - 16:25BOS-LHR

17h 50m2 stops

€449Scandinavian Airlines

Find Deal

Thu, 19 Feb - Mon, 9 Mar

07:05 - 15:50LHR-BOS

13h 45m2 stops

18:35 - 14:35BOS-LHR

16h 00m2 stops

€451Scandinavian Airlines

Find Deal

Thu, 19 Feb - Mon, 9 Mar

13:45 - 20:20LHR-BOS

11h 35m1 stop

12:02 - 07:10BOS-LHR

14h 08m2 stops

€464United Airlines

Find Deal

Wed, 3 Dec - Wed, 10 Dec

11:10 - 18:35LHR-BOS

12h 25m1 stop

16:20 - 10:50BOS-LHR

13h 30m2 stops

€467United Airlines

Find Deal

Mon, 8 Dec - Mon, 15 Dec

11:25 - 22:52LHR-BOS

16h 27m2 stops

17:55 - 07:50BOS-LHR

9h 55m1 stop

€484British Airways

Find Deal

Mon, 2 Mar - Thu, 12 Mar

09:15 - 22:54LHR-BOS

18h 39m2 stops

15:35 - 06:45BOS-LHR

10h 10m1 stop

€485British Airways

Find Deal

Wed, 10 Dec - Thu, 15 Jan

TAP AIR PORTUGAL flights from London Heathrow Airport to Boston

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Boston flight tickets

TAP AIR PORTUGAL

6 Dec

LHR12:25London Heathrow

12h 45m

1 stop

BOS20:10Boston Logan Intl

31 Jan

BOS22:25Boston Logan Intl

14h 05m

1 stop

LHR17:30London Heathrow

€402

Find similar

TAP AIR PORTUGAL

4 Dec

LHR12:25London Heathrow

12h 45m

1 stop

BOS20:10Boston Logan Intl

11 Dec

BOS22:45Boston Logan Intl

13h 45m

1 stop

LHR17:30London Heathrow

€403

Find similar

TAP AIR PORTUGAL

6 Dec

LHR06:00London Heathrow

19h 10m

1 stop

BOS20:10Boston Logan Intl

31 Jan

BOS18:05Boston Logan Intl

12h 20m

1 stop

LHR11:25London Heathrow

€403

Find similar

United Airlines flights from London Heathrow Airport to Boston

Our best United Airlines deals on London Heathrow Airport to Boston flight tickets

United Airlines

3 Dec

LHR13:45London Heathrow

11h 35m

1 stop

BOS20:20Boston Logan Intl

10 Dec

BOS12:02Boston Logan Intl

14h 08m

2 stops

LHR07:10London Heathrow

€464

Find similar

United Airlines

8 Dec

LHR11:10London Heathrow

12h 25m

1 stop

BOS18:35Boston Logan Intl

15 Dec

BOS16:20Boston Logan Intl

13h 30m

2 stops

LHR10:50London Heathrow

€467

Find similar

United Airlines

8 Dec

LHR11:10London Heathrow

12h 25m

1 stop

BOS18:35Boston Logan Intl

15 Dec

BOS19:07Boston Logan Intl

10h 43m

1 stop

LHR10:50London Heathrow

€468

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 6/12

12:25-20:10

1 stop12h 45m

Boston Logan Intl

Sat 31/1

22:25-17:30

1 stop14h 05m

€402

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/12

12:25-20:10

1 stop12h 45m

Boston Logan Intl

Thu 11/12

22:45-17:30

1 stop13h 45m

€403

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 20/2

20:35-10:35

1 stop19h 00m

Boston Logan Intl

Wed 11/3

20:50-19:30

1 stop18h 40m

€406

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 7/2

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Wed 18/2

19:50-10:50

1 stop10h 00m

€407

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/2

06:40-15:50

1 stop14h 10m

Boston Logan Intl

Mon 9/3

18:35-16:25

2 stops17h 50m

€449

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/2

07:05-15:50

2 stops13h 45m

Boston Logan Intl

Mon 9/3

18:35-14:35

2 stops16h 00m

€451

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 3/12

13:45-20:20

1 stop11h 35m

Boston Logan Intl

Wed 10/12

12:02-07:10

2 stops14h 08m

€464

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/12

11:10-18:35

1 stop12h 25m

Boston Logan Intl

Mon 15/12

16:20-10:50

2 stops13h 30m

€467

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 2/3

11:25-22:52

2 stops16h 27m

Boston Logan Intl

Thu 12/3

17:55-07:50

1 stop9h 55m

€484

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 10/12

09:15-22:54

2 stops18h 39m

Boston Logan Intl

Thu 15/1

15:35-06:45

1 stop10h 10m

€485

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Boston?

The month of February is, on average, the cheapest month to fly to Boston from London Heathrow Airport, with most prices found around €466. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around €472.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from London Heathrow Airport to Boston is on a Tuesday when prices can be found for as low as €666. Flights from London Heathrow Airport to Boston on a Monday will generally be more expensive and average around €1,073. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Boston?

Flying to Boston from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as €601 when looking at flights departing in the morning. Flights in the evening are often more expensive, with an average ticket price of €1,073.

What is the cheapest London Heathrow to Boston Logan Intl flight route?

Fly from London Heathrow to Boston Logan Intl for the best London Heathrow - Boston Logan Intl flight prices

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around €539 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London Heathrow Airport for as low as €498 on momondo.

What cabin class options are available on London Heathrow to Boston Logan Intl flights?

There are 2 cabin classes available to choose from on London Heathrow to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Boston flights?

You could potentially save up to 30% on your flight if you consider stops on a London Heathrow Airport to Boston flight.

How have London Heathrow Airport to Boston flight prices changed over time?

As of November 2025, prices for London Heathrow Airport to Boston flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Boston according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Boston (LHR to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Boston

Fastest flight time	7h 25m
Direct flights	Every day
Airports in Boston	1 airport

The fastest flight from London Heathrow Airport to Boston takes 7h 25m

Direct flights go from London Heathrow Airport to Boston every day.

There is 1 airport near Boston: Boston Logan Intl (BOS)

Search flight deals

How far is London Heathrow to Boston Logan Intl by plane?
The straight-line distance from London Heathrow to Boston Logan Intl is 5240.1 km. By plane, this route typically takes 10h 35m.
When did momondo last update prices for flights from London Heathrow Airport to Boston Logan Intl Airport?
Prices for flights from London Heathrow Airport to Boston Logan Intl Airport are updated daily.
How old do you have to be to fly from London Heathrow Airport to Boston Logan Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The necessary travel and health documents for your Boston Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Boston?
Based on momondo bookings for flights between London Heathrow Airport and Boston, the leading plane model is Boeing 777-200/200ER, making up 26.24% of the total bookings. Other popular models include Airbus A330-900neo with 18.49%, Boeing 777 with 16.87%, and Boeing 787-9 Dreamliner with 9.73%.

Everett

Brookline

Quincy

Cambridge

Medford

Warwick

Woburn

Why use momondo?

Why should I use momondo to find a flight deal from London to Boston?

It is quick and easy to find London to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.

Can I find flights from London to Boston with flexible booking policies on momondo?

momondo does allow users to show only those flights to Boston from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Boston?

Once you have performed a search for London to Boston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Boston right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Boston from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Boston trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sun 7/12

Sun 14/12

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Massachusetts

Cape Cod and the Islands Airport

Popular Cities in the United States

Flights to New Yorkfrom €264

Flights to Orlandofrom €405

Flights to Chicagofrom €359

Flights to Miamifrom €328

Flights to Los Angelesfrom €442

Flights to San Franciscofrom €382

Flights to Las Vegasfrom €388

Flights to Anchoragefrom €987

Flights to Washington, D.C.from €359

Flights to Dallasfrom €453

Flights to Denverfrom €494

Flights to Tampafrom €475

Cheap flights from London Heathrow Airport to Boston from €351

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Boston departing on 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London Heathrow Airport to Boston

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

TAP AIR PORTUGAL flights from London Heathrow Airport to Boston

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Boston flight tickets

United Airlines flights from London Heathrow Airport to Boston

Our best United Airlines deals on London Heathrow Airport to Boston flight tickets

momondo Fare Finder

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

See travel insights to Boston from

How to get the cheapest flight ticket from London Heathrow Airport to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boston?

The month of February is, on average, the cheapest month to fly to Boston from London Heathrow Airport, with most prices found around €466. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around €472.

What is the cheapest day to depart on your flight to Boston?

What is the cheapest time of day to depart on your flight to Boston?

Flying to Boston from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as €601 when looking at flights departing in the morning. Flights in the evening are often more expensive, with an average ticket price of €1,073.

What is the cheapest London Heathrow to Boston Logan Intl flight route?

Fly from London Heathrow to Boston Logan Intl for the best London Heathrow - Boston Logan Intl flight prices

How far in advance should I book a flight to Boston?

What cabin class options are available on London Heathrow to Boston Logan Intl flights?

There are 2 cabin classes available to choose from on London Heathrow to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Boston flights?

You could potentially save up to 30% on your flight if you consider stops on a London Heathrow Airport to Boston flight.

How have London Heathrow Airport to Boston flight prices changed over time?

As of November 2025, prices for London Heathrow Airport to Boston flights are approximately 15% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Boston Logan Intl?

JetBlue, United Airlines, and British Airways are the most popular carriers operating from London Heathrow to Boston Logan Intl

How often are flights from London to Boston delayed?

Historically, on average around 9% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

What is the most punctual flight time for London to Boston flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Boston flights?

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

How many flights depart from London Heathrow Airport to Boston on average per day?

As of November 2025, 31 flights take off from London Heathrow Airport and land in Boston each day. The most common flight departure time for this route is 09:00, with 41% of daily flights taking off in the afternoon.

How many flights depart from London Heathrow Airport to Boston on average per week?

As of November 2025, 218 flights take off from London Heathrow Airport and land in Boston each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

When to book flights from London Heathrow Airport to Boston

Cheap London Heathrow Airport to Boston (LHR to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Boston

Fastest flight time

Direct flights

Airports in Boston

How far is London Heathrow to Boston Logan Intl by plane?

When did momondo last update prices for flights from London Heathrow Airport to Boston Logan Intl Airport?

How old do you have to be to fly from London Heathrow Airport to Boston Logan Intl Airport?

What documentation or ID do you need to fly to Boston Logan Intl Airport?

What is the most popular plane model from London Heathrow Airport to Boston?

Travelling to a place near Boston?

Why use momondo?

Why should I use momondo to find a flight deal from London to Boston?

Can I find flights from London to Boston with flexible booking policies on momondo?

How can momondo help me find flights from London to Boston?

I’m not ready to book a flight from London to Boston right now. Can momondo alert me if prices change?

An easier way to manage your Boston trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Massachusetts