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.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Boston?

Reykjavik (KEF) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

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

The number of flights available between London Heathrow Airport and Boston is 17 per day as of October 2025. The most frequent departure time is 09:00, with 39% of daily flights leaving in the afternoon.

Which stopover airport has the shortest travel time from London Heathrow Airport to Boston?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 05m.

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

Lufthansa, Austrian Airlines, and LEVEL are the most popular carriers operating from London Heathrow to Boston Logan Intl

Which stopover airport has the shortest connection time from London Heathrow Airport to Boston?

Montreal (YUL) has the shortest average stopover time for this route: 1h 46m.

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.

Which stopover airport offers the lowest fares from London Heathrow Airport to Boston?

Flights via Copenhagen (CPH) offer the lowest average return price of £478.

Which airlines fly to Boston?

British Airways, Virgin Atlantic and KLM are the top three most popular airlines that fly to Boston from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Boston. Keep in mind that there are 16 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

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 week?

The number of flights available between London Heathrow Airport and Boston is 119 per week as of October 2025. The most frequent departure day is Wed, with 27% of weekly flights leaving on this day.

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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£305 Cheap Flights from London Heathrow Airport to Boston in 2025/26

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08:15 - 20:10LHR-BOS

16h 55m1 stop

18:05 - 17:30BOS-LHR

18h 25m1 stop

£340TAP AIR PORTUGAL

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Thu, 4 Dec - Mon, 8 Dec

12:25 - 20:10LHR-BOS

12h 45m1 stop

18:05 - 12:40BOS-LHR

13h 35m1 stop

£341TAP AIR PORTUGAL

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Fri, 5 Dec - Mon, 8 Dec

08:00 - 20:45LHR-BOS

17h 45m1 stop

22:45 - 18:50BOS-LHR

15h 05m1 stop

£342TAP AIR PORTUGAL

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Wed, 1 Apr - Thu, 9 Apr

19:55 - 14:35LHR-BOS

23h 40m1 stop

22:45 - 17:30BOS-LHR

13h 45m1 stop

£343TAP AIR PORTUGAL

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Thu, 4 Dec - Sun, 7 Dec

06:00 - 20:10LHR-BOS

19h 10m1 stop

22:45 - 17:30BOS-LHR

13h 45m1 stop

£344TAP AIR PORTUGAL

Find Deal

Thu, 20 Nov - Sun, 30 Nov

12:15 - 10:35LHR-BOS

27h 20m1 stop

19:50 - 19:30BOS-LHR

18h 40m1 stop

£364Icelandair

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Fri, 14 Nov - Wed, 19 Nov

12:15 - 10:35LHR-BOS

27h 20m1 stop

11:35 - 19:30BOS-LHR

26h 55m1 stop

£365Icelandair

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Wed, 12 Nov - Thu, 20 Nov

09:55 - 20:55LHR-BOS

16h 00m1 stop

22:40 - 09:10BOS-LHR

29h 30m1 stop

£384LEVEL

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Tue, 27 Jan - Tue, 3 Feb

06:40 - 15:50LHR-BOS

14h 10m2 stops

17:35 - 14:35BOS-LHR

16h 00m2 stops

£386Scandinavian Airlines

Find Deal

Thu, 29 Jan - Tue, 3 Feb

17:00 - 15:50LHR-BOS

27h 50m1 stop

17:35 - 16:00BOS-LHR

17h 25m1 stop

£389Scandinavian Airlines

Find Deal

Sun, 11 Jan - Sun, 18 Jan

Scandinavian Airlines flights from London Heathrow Airport to Boston

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

Scandinavian Airlines

29 Jan

LHR06:40London Heathrow

14h 10m

2 stops

BOS15:50Boston Logan Intl

3 Feb

BOS17:35Boston Logan Intl

16h 00m

2 stops

LHR14:35London Heathrow

£386

Find similar

Scandinavian Airlines

11 Jan

LHR17:00London Heathrow

27h 50m

1 stop

BOS15:50Boston Logan Intl

18 Jan

BOS17:35Boston Logan Intl

17h 25m

1 stop

LHR16:00London Heathrow

£389

Find similar

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

4 Dec

LHR08:15London Heathrow

16h 55m

1 stop

BOS20:10Boston Logan Intl

8 Dec

BOS18:05Boston Logan Intl

18h 25m

1 stop

LHR17:30London Heathrow

£340

Find similar

TAP AIR PORTUGAL

5 Dec

LHR12:25London Heathrow

12h 45m

1 stop

BOS20:10Boston Logan Intl

8 Dec

BOS18:05Boston Logan Intl

13h 35m

1 stop

LHR12:40London Heathrow

£341

Find similar

TAP AIR PORTUGAL

1 Apr

LHR08:00London Heathrow

17h 45m

1 stop

BOS20:45Boston Logan Intl

9 Apr

BOS22:45Boston Logan Intl

15h 05m

1 stop

LHR18:50London Heathrow

£342

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momondo Fare Finder

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

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Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/12

08:15-20:10

1 stop16h 55m

Boston Logan Intl

Mon 8/12

18:05-17:30

1 stop18h 25m

£340

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 5/12

12:25-20:10

1 stop12h 45m

Boston Logan Intl

Mon 8/12

18:05-12:40

1 stop13h 35m

£341

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 1/4

08:00-20:45

1 stop17h 45m

Boston Logan Intl

Thu 9/4

22:45-18:50

1 stop15h 05m

£342

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/12

19:55-14:35

1 stop23h 40m

Boston Logan Intl

Sun 7/12

22:45-17:30

1 stop13h 45m

£343

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 20/11

06:00-20:10

1 stop19h 10m

Boston Logan Intl

Sun 30/11

22:45-17:30

1 stop13h 45m

£344

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 14/11

12:15-10:35

1 stop27h 20m

Boston Logan Intl

Wed 19/11

19:50-19:30

1 stop18h 40m

£364

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 12/11

12:15-10:35

1 stop27h 20m

Boston Logan Intl

Thu 20/11

11:35-19:30

1 stop26h 55m

£365

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 27/1

09:55-20:55

1 stop16h 00m

Boston Logan Intl

Tue 3/2

22:40-09:10

1 stop29h 30m

£384

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 29/1

06:40-15:50

2 stops14h 10m

Boston Logan Intl

Tue 3/2

17:35-14:35

2 stops16h 00m

£386

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 11/1

17:00-15:50

1 stop27h 50m

Boston Logan Intl

Sun 18/1

17:35-16:00

1 stop17h 25m

£389

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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

Stopovers

Other information

What is the cheapest month to fly to Boston?

In general, February is the cheapest month to fly from London Heathrow Airport to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £408. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around £413.

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

The cheapest day to depart on your flight to Boston is on a Wednesday when prices can be found for as low as £512. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £599. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boston.

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

Our most recent data shows that the best time of day to fly to Boston is at midday. Flights from London Heathrow Airport to Boston during this time can be as low as £508. In the evening is when there is more demand to fly to Boston, so prices are often more expensive at around £722 per ticket.

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 £471 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 £435 on momondo.

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

There are 4 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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Boston.

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

As of October 2025, prices for London Heathrow Airport to Boston flights are approximately 11% 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

Best price found	£382
Fastest flight time	7h 25m
Direct flights	Every day
Airports in Boston	1 airport

The best one-way flight to Boston from London Heathrow Airport in the past 72 hours is £382. The best return flight deal from London Heathrow Airport to Boston found on momondo in the last 72 hours is £462.

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?
A flight from London Heathrow to Boston Logan Intl will travel around 3256.0 mi. Typically, this will take 10h 35m by plane in normal conditions.
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 many operators does momondo search for flights from London Heathrow Airport to Boston Logan Intl Airport?
There are 16 operators available for flights from London Heathrow Airport to Boston Logan Intl Airport as of October 2025.
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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek 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?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Boston is Boeing 777-200/200ER, representing 25.71% of all bookings. The subsequent popular models are Airbus A330-900neo at 18.64%, Boeing 777 at 16.47%, and Boeing 787-9 Dreamliner at 10.03%.
What is the most popular airline from London Heathrow Airport to Boston?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Boston is British Airways (34% of total bookings). The next most popular airlines are Virgin Atlantic (34%), KLM (7%), and Air France (5%).

Best airlines flying from London Heathrow Airport to Boston

Compare and see reviews for airlines that fly from London Heathrow Airport to Boston with momondo

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom £288	Free Cancellation	Rating 7.1 2,040 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom £302	Free Cancellation	Rating 7.4 1,548 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom £309	Free Cancellation	Rating 6.8 7,542 reviews	Search Lufthansa flights
JetBlue	PriceFrom £336	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
United Airlines	PriceFrom £339	Free Cancellation	Rating 7.4 8,996 reviews	Search United Airlines flights
Icelandair	PriceFrom £343	Free Cancellation	Rating 7.1 562 reviews	Search Icelandair flights
Air Canada	PriceFrom £348	Free Cancellation	Rating 7.1 10,383 reviews	Search Air Canada flights
Virgin Atlantic	PriceFrom £358	Free Cancellation	Rating 7.5 671 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £358	Free Cancellation	Rating 6.7 7,488 reviews	Search British Airways flights
Air France	PriceFrom £362	Free Cancellation	Rating 7.4 1,482 reviews	Search Air France flights

Delta Flights From London Heathrow Airport to Boston
Delta flight deals from London Heathrow Airport to Boston start from £367 round-trip. Over the 8 Delta flights for this route in a normal week, average airfare is usually £534 round-trip - but some users have found much cheaper deals with momondo.
KLM Flights From London Heathrow Airport to Boston
Across 1,406 KLM reviews on momondo, the average score is 7.7/10. KLM flies from London Heathrow Airport to Boston about 8 times each week, with ticket deals ranging from £363 to £440. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Boston . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Boston from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Of course. momondo tracks the price of London to Boston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from London Heathrow Airport to Boston from £305

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 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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Find the cheapest flights from London Heathrow Airport to Boston

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Scandinavian Airlines flights from London Heathrow Airport to Boston

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

TAP AIR PORTUGAL flights from London Heathrow Airport to Boston

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

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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?

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?

Our most recent data shows that the best time of day to fly to Boston is at midday. Flights from London Heathrow Airport to Boston during this time can be as low as £508. In the evening is when there is more demand to fly to Boston, so prices are often more expensive at around £722 per ticket.

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 4 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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Boston.

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

As of October 2025, prices for London Heathrow Airport to Boston flights are approximately 11% 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?

Lufthansa, Austrian Airlines, and LEVEL are the most popular carriers operating from London Heathrow to Boston Logan Intl

Which airlines fly to Boston?

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.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Boston?

Reykjavik (KEF) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Heathrow Airport to Boston?

Flights via Copenhagen (CPH) offer the lowest average return price of £478.

Which stopover airport has the shortest travel time from London Heathrow Airport to Boston?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 05m.

Which stopover airport has the shortest connection time from London Heathrow Airport to Boston?

Montreal (YUL) has the shortest average stopover time for this route: 1h 46m.

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

The number of flights available between London Heathrow Airport and Boston is 17 per day as of October 2025. The most frequent departure time is 09:00, with 39% of daily flights leaving in the afternoon.

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

The number of flights available between London Heathrow Airport and Boston is 119 per week as of October 2025. The most frequent departure day is Wed, with 27% of weekly flights leaving 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

Best price found

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 many operators does momondo search 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?

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

Best airlines flying from London Heathrow Airport to Boston

Compare and see reviews for airlines that fly from London Heathrow Airport to Boston with momondo

Delta Flights From London Heathrow Airport to Boston

KLM Flights From London Heathrow Airport to Boston

Travelling to a place near Boston?

Why use momondo?