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Cheap flights from London Heathrow Airport to Boston from £298

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 10/11. 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

United Airlines Logo
13:30 - 20:10LHR-BOS
11h 40m1 stop
United Airlines Logo
06:00 - 20:40BOS-LHR
9h 40m1 stop
£332United Airlines
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Wed, 1 Oct - Sat, 11 Oct
United Airlines Logo
08:40 - 15:25LHR-BOS
11h 45m1 stop
United Airlines Logo
12:15 - 06:30BOS-LHR
13h 15m2 stops
£333United Airlines
Find Deal
Wed, 8 Oct - Thu, 16 Oct
Air Canada Logo
09:00 - 19:12LHR-BOS
15h 12m2 stops
Air Canada Logo
10:15 - 06:30BOS-LHR
15h 15m2 stops
£333Air Canada
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Wed, 5 Nov - Thu, 20 Nov
Austrian Airlines Logo
06:00 - 13:50LHR-BOS
12h 50m1 stop
Austrian Airlines Logo
14:36 - 06:55BOS-LHR
11h 19m1 stop
£334Austrian Airlines
Find Deal
Fri, 3 Oct - Sat, 11 Oct
Icelandair Logo
08:25 - 11:22LHR-BOS
7h 57mdirect
Icelandair Logo
18:13 - 06:30BOS-LHR
7h 17mdirect
£336Icelandair
Find Deal
Thu, 9 Oct - Sun, 19 Oct
Icelandair Logo
08:25 - 11:27LHR-BOS
8h 02mdirect
Icelandair Logo
18:13 - 06:30BOS-LHR
7h 17mdirect
£337Icelandair
Find Deal
Wed, 1 Oct - Fri, 10 Oct
British Airways Logo
08:55 - 11:25LHR-BOS
7h 30mdirect
British Airways Logo
08:30 - 19:00BOS-LHR
6h 30mdirect
£341British Airways
Find Deal
Wed, 8 Oct - Wed, 29 Oct
British Airways Logo
08:55 - 11:25LHR-BOS
7h 30mdirect
British Airways Logo
19:55 - 06:30BOS-LHR
6h 35mdirect
£342British Airways
Find Deal
Wed, 8 Oct - Wed, 29 Oct
Virgin Atlantic Logo
08:40 - 18:20LHR-BOS
14h 40m1 stop
Virgin Atlantic Logo
22:45 - 10:30BOS-LHR
6h 45mdirect
£353Virgin Atlantic
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Wed, 1 Oct - Fri, 17 Oct
Aer Lingus Logo
09:50 - 15:30LHR-BOS
10h 40m1 stop
Aer Lingus Logo
18:30 - 09:05BOS-LHR
9h 35m1 stop
£355Aer Lingus
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Wed, 22 Oct - Sat, 25 Oct

Delta flights from London Heathrow Airport to Boston

Our best Delta deals on London Heathrow Airport to Boston flight tickets
Delta
22 Sept
LHR06:30London Heathrow
12h 10m
1 stop
BOS13:40Boston Logan Intl
14 Oct
BOS22:45Boston Logan Intl
6h 45m
LHR10:30London Heathrow
£350
Find similar
Delta
25 Nov
LHR06:30London Heathrow
11h 50m
1 stop
BOS13:20Boston Logan Intl
2 Dec
BOS20:00Boston Logan Intl
6h 50m
LHR07:50London Heathrow
£351
Find similar
Delta
1 Oct
LHR08:40London Heathrow
12h 50m
1 stop
BOS16:30Boston Logan Intl
9 Oct
BOS19:05Boston Logan Intl
6h 40m
LHR06:45London Heathrow
£352
Find similar

Aer Lingus flights from London Heathrow Airport to Boston

Our best Aer Lingus deals on London Heathrow Airport to Boston flight tickets
Aer Lingus
24 Sept
LHR13:25London Heathrow
10h 20m
1 stop
BOS18:45Boston Logan Intl
8 Oct
BOS17:30Boston Logan Intl
9h 30m
1 stop
LHR08:00London Heathrow
£341
Find similar
Aer Lingus
22 Oct
LHR09:50London Heathrow
10h 40m
1 stop
BOS15:30Boston Logan Intl
25 Oct
BOS18:30Boston Logan Intl
9h 35m
1 stop
LHR09:05London Heathrow
£355
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 279,928 searches. Data last updated 18 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

Wed 1/10

13:30-20:10

1 stop11h 40m

Boston Logan Intl

Sat 11/10

06:00-20:40

1 stop9h 40m

£332

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 8/10

08:40-15:25

1 stop11h 45m

Boston Logan Intl

Thu 16/10

12:15-06:30

2 stops13h 15m

£333

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 5/11

09:00-19:12

2 stops15h 12m

Boston Logan Intl

Thu 20/11

10:15-06:30

2 stops15h 15m

£333

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 3/10

06:00-13:50

1 stop12h 50m

Boston Logan Intl

Sat 11/10

14:36-06:55

1 stop11h 19m

£334

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 9/10

08:25-11:22

Nonstop7h 57m

Boston Logan Intl

Sun 19/10

18:13-06:30

Nonstop7h 17m

£336

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 1/10

08:25-11:27

Nonstop8h 02m

Boston Logan Intl

Fri 10/10

18:13-06:30

Nonstop7h 17m

£337

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 8/10

08:55-11:25

Nonstop7h 30m

Boston Logan Intl

Wed 29/10

08:30-19:00

Nonstop6h 30m

£341

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 8/10

08:55-11:25

Nonstop7h 30m

Boston Logan Intl

Wed 29/10

19:55-06:30

Nonstop6h 35m

£342

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 1/10

08:40-18:20

1 stop14h 40m

Boston Logan Intl

Fri 17/10

22:45-10:30

Nonstop6h 45m

£353

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 22/10

09:50-15:30

1 stop10h 40m

Boston Logan Intl

Sat 25/10

18:30-09:05

1 stop9h 35m

£355

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?

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 £392. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around £402.

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 £486. 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 £579. 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 £485. In the evening is when there is more demand to fly to Boston, so prices are often more expensive at around £689 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 £452 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 £411 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 September 2025, prices for London Heathrow Airport to Boston flights are approximately 35% 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

£365

Fastest flight time

7h 20m

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 £365. The best return flight deal from London Heathrow Airport to Boston found on momondo in the last 72 hours is £395.
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?

    A flight from London Heathrow to Boston Logan Intl will travel around 3256.0 mi. Typically, this will take 7h 20m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom £268Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom £278Free CancellationRating
7.1
1,977 reviews
Search TAP AIR PORTUGAL flights
Austrian AirlinesPriceFrom £284Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights
Scandinavian AirlinesPriceFrom £294Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom £298Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Aer LingusPriceFrom £330Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights
IcelandairPriceFrom £334Free CancellationRating
7.0
545 reviews
Search Icelandair flights
United AirlinesPriceFrom £334Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
JetBluePriceFrom £335Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
British AirwaysPriceFrom £344Free CancellationRating
6.7
7,367 reviews
Search British Airways flights

  • Delta Flights From London Heathrow Airport to Boston

    Delta flight deals from London Heathrow Airport to Boston start from £470 round-trip. Over the 20 Delta flights for this route in a normal week, average airfare is usually £708 round-trip - but some users have found much cheaper deals with momondo.

  • KLM Flights From London Heathrow Airport to Boston

    Across 1,386 KLM reviews on momondo, the average score is 7.8/10. KLM flies from London Heathrow Airport to Boston about 20 times each week, with ticket deals ranging from £476 to £573. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Salem
Cambridge
Burlington
Amherst
Falmouth
Plymouth
Braintree
Randolph
Brookline
Needham
Revere
York Beach
West Yarmouth
Somerville
Warwick
Concord
Hampton
Hull
Cape Neddick
Old Orchard Beach

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.

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
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