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Cheap flights from London Heathrow Airport to Boston from €361

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 17/10. 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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0 bags
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Find the cheapest flights from London Heathrow Airport to Boston

Cheap return flights

Delta Logo
09:55 - 18:20LHR-BOS
13h 25m1 stop
Delta Logo
19:10 - 06:50BOS-LHR
6h 40mdirect
€406Delta
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Tue, 21 Oct - Mon, 3 Nov
Delta Logo
11:45 - 18:55LHR-BOS
12h 10m1 stop
Delta Logo
21:00 - 07:50BOS-LHR
6h 50mdirect
€407Delta
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Wed, 4 Mar - Thu, 12 Mar
SWISS Logo
20:05 - 21:20LHR-BOS
29h 15m1 stop
SWISS Logo
21:50 - 16:20BOS-LHR
13h 30m1 stop
€408SWISS
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Thu, 30 Oct - Wed, 12 Nov
United Airlines Logo
09:30 - 17:55LHR-BOS
13h 25m1 stop
United Airlines Logo
18:56 - 11:25BOS-LHR
11h 29m1 stop
€410United Airlines
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Sun, 21 Sep - Sun, 28 Sep
JetBlue Logo
08:25 - 11:27LHR-BOS
8h 02mdirect
JetBlue Logo
18:23 - 06:30BOS-LHR
7h 07mdirect
€412JetBlue
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Thu, 25 Sep - Thu, 2 Oct
British Airways Logo
08:55 - 11:15LHR-BOS
7h 20mdirect
British Airways Logo
20:10 - 07:50BOS-LHR
6h 40mdirect
€413British Airways
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Mon, 15 Sep - Mon, 22 Sep
United Airlines Logo
09:00 - 17:50LHR-BOS
13h 50m1 stop
United Airlines Logo
18:17 - 10:25BOS-LHR
11h 08m1 stop
€414United Airlines
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Fri, 26 Dec - Tue, 6 Jan
British Airways Logo
13:30 - 17:05LHR-BOS
7h 35mdirect
British Airways Logo
06:00 - 22:10BOS-LHR
11h 10m1 stop
€415British Airways
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Tue, 28 Oct - Tue, 4 Nov
SWISS Logo
13:45 - 21:20LHR-BOS
11h 35m1 stop
SWISS Logo
21:50 - 08:15BOS-LHR
29h 25m2 stops
€417SWISS
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Fri, 31 Oct - Thu, 13 Nov
JetBlue Logo
08:25 - 11:22LHR-BOS
7h 57mdirect
JetBlue Logo
20:12 - 06:55BOS-LHR
6h 43mdirect
€424JetBlue
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Fri, 24 Oct - Sun, 26 Oct

Delta flights from London Heathrow Airport to Boston

Our best Delta deals on London Heathrow Airport to Boston flight tickets
Delta
21 Oct
LHR08:40London Heathrow
14h 40m
1 stop
BOS18:20Boston Logan Intl
28 Oct
BOS20:10Boston Logan Intl
6h 40m
LHR06:50London Heathrow
€406
Find similar
Delta
4 Mar
LHR11:45London Heathrow
12h 10m
1 stop
BOS18:55Boston Logan Intl
12 Mar
BOS21:00Boston Logan Intl
6h 50m
LHR07:50London Heathrow
€407
Find similar
Delta
22 Oct
LHR18:15London Heathrow
7h 45m
BOS21:00Boston Logan Intl
30 Oct
BOS20:10Boston Logan Intl
6h 40m
LHR06:50London Heathrow
€411
Find similar

British Airways flights from London Heathrow Airport to Boston

Our best British Airways deals on London Heathrow Airport to Boston flight tickets
British Airways
15 Sept
LHR08:55London Heathrow
7h 20m
BOS11:15Boston Logan Intl
22 Sept
BOS20:10Boston Logan Intl
6h 40m
LHR07:50London Heathrow
€411
Find similar
British Airways
15 Sept
LHR08:55London Heathrow
7h 20m
BOS11:15Boston Logan Intl
22 Sept
BOS20:10Boston Logan Intl
6h 40m
LHR07:50London Heathrow
€413
Find similar
British Airways
10 Sept
LHR08:55London Heathrow
7h 20m
BOS11:15Boston Logan Intl
15 Sept
BOS20:10Boston Logan Intl
6h 40m
LHR07:50London Heathrow
€415
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Boston 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, momondo users made 13,528 searches. Data last updated 5 September 2025.
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

Tue 21/10

09:55-18:20

1 stop13h 25m

Boston Logan Intl

Mon 3/11

19:10-06:50

Nonstop6h 40m

€406

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 4/3

11:45-18:55

1 stop12h 10m

Boston Logan Intl

Thu 12/3

21:00-07:50

Nonstop6h 50m

€407

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 30/10

20:05-21:20

1 stop29h 15m

Boston Logan Intl

Wed 12/11

21:50-16:20

1 stop13h 30m

€408

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 21/9

09:30-17:55

1 stop13h 25m

Boston Logan Intl

Sun 28/9

18:56-11:25

1 stop11h 29m

€410

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 25/9

08:25-11:27

Nonstop8h 02m

Boston Logan Intl

Thu 2/10

18:23-06:30

Nonstop7h 07m

€412

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 15/9

08:55-11:15

Nonstop7h 20m

Boston Logan Intl

Mon 22/9

20:10-07:50

Nonstop6h 40m

€413

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 26/12

09:00-17:50

1 stop13h 50m

Boston Logan Intl

Tue 6/1

18:17-10:25

1 stop11h 08m

€414

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 28/10

13:30-17:05

Nonstop7h 35m

Boston Logan Intl

Tue 4/11

06:00-22:10

1 stop11h 10m

€415

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 31/10

13:45-21:20

1 stop11h 35m

Boston Logan Intl

Thu 13/11

21:50-08:15

2 stops29h 25m

€417

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 24/10

08:25-11:22

Nonstop7h 57m

Boston Logan Intl

Sun 26/10

20:12-06:55

Nonstop6h 43m

€424

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 €460. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around €464.

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 €658. Flights from London Heathrow Airport to Boston on a Monday will generally be more expensive and average around €1,062. 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 €514 when looking at flights departing in the morning. Flights in the evening are often more expensive, with an average ticket price of €1,062.

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 €532 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 €488 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 42% 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 September 2025, prices for London Heathrow Airport to Boston flights are approximately 44% 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 20m

Direct flights

Every day

Airports in Boston

1 airport
The fastest flight from London Heathrow Airport to Boston takes 7h 20m
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 7h 20m.

  • 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?

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Quincy
Cambridge
Medford
Warwick
Brookline

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.
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