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Cheap flights from London to Boston from £144

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 to Boston departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

Air France Logo
09:40 - 12:25LHR-BOS
7h 45mdirect
Air France Logo
19:20 - 07:05BOS-LHR
6h 45mdirect
£302Air France
Find Deal
Fri, 24 Oct - Wed, 5 Nov
 Logo
09:40 - 12:25LHR-BOS
7h 45mdirect
 Logo
17:00 - 08:20BOS-LHR
10h 20m1 stop
Fri, 24 Oct - Wed, 5 Nov
Virgin Atlantic Logo
08:40 - 18:20LHR-BOS
14h 40m1 stop
Virgin Atlantic Logo
20:15 - 08:05BOS-LHR
6h 50mdirect
£311Virgin Atlantic
Find Deal
Mon, 23 Jun - Mon, 30 Jun
PLAY Logo
11:40 - 17:50STN-BOS
11h 10m1 stop
PLAY Logo
19:15 - 10:40BOS-STN
10h 25m1 stop
£319PLAY
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Icelandair Logo
11:55 - 10:35LGW-BOS
27h 40m1 stop
Icelandair Logo
20:00 - 10:55BOS-LGW
9h 55m1 stop
£324Icelandair
Find Deal
Fri, 21 Nov - Mon, 24 Nov
Virgin Atlantic Logo
18:15 - 21:00LHR-BOS
7h 45mdirect
Virgin Atlantic Logo
20:15 - 08:05BOS-LHR
6h 50mdirect
£325Virgin Atlantic
Find Deal
Mon, 23 Jun - Mon, 30 Jun
Icelandair Logo
15:40 - 11:35LGW-BOS
24h 55m1 stop
Icelandair Logo
23:35 - 14:40BOS-LGW
10h 05m1 stop
£332Icelandair
Find Deal
Thu, 11 Sep - Sun, 21 Sep
PLAY Logo
11:40 - 17:50STN-BOS
11h 10m1 stop
PLAY Logo
19:15 - 10:40BOS-STN
10h 25m1 stop
£333PLAY
Find Deal
Sat, 6 Sep - Sat, 13 Sep
British Airways Logo
08:55 - 11:20LHR-BOS
7h 25mdirect
British Airways Logo
21:55 - 09:30BOS-LHR
6h 35mdirect
£340British Airways
Find Deal
Wed, 9 Jul - Wed, 16 Jul
British Airways Logo
15:05 - 22:59LGW-BOS
12h 54m1 stop
British Airways Logo
16:30 - 08:10BOS-LGW
10h 40m1 stop
£340British Airways
Find Deal
Fri, 15 Aug - Tue, 30 Sep

Air France flights from London to Boston

Our best Air France deals on London to Boston flight tickets
Air France
24 Oct
LHR09:40London Heathrow
7h 45m
BOS12:25Boston Logan Intl
5 Nov
BOS19:20Boston Logan Intl
6h 45m
LHR07:05London Heathrow
Air France
1 Jul
LHR09:40London Heathrow
7h 35m
BOS12:15Boston Logan Intl
10 Jul
BOS19:05Boston Logan Intl
6h 40m
LHR06:45London Heathrow
Air France
26 Jun
LHR09:40London Heathrow
7h 25m
BOS12:05Boston Logan Intl
13 Jul
BOS20:15Boston Logan Intl
6h 50m
LHR08:05London Heathrow

Virgin Atlantic flights from London to Boston

Our best Virgin Atlantic deals on London to Boston flight tickets
Virgin Atlantic
23 Jun
LHR08:40London Heathrow
14h 40m
1 stop
BOS18:20Boston Logan Intl
30 Jun
BOS20:15Boston Logan Intl
6h 50m
LHR08:05London Heathrow
Virgin Atlantic
23 Jun
LHR18:15London Heathrow
7h 45m
BOS21:00Boston Logan Intl
30 Jun
BOS20:15Boston Logan Intl
6h 50m
LHR08:05London Heathrow
Virgin Atlantic
22 Oct
LHR18:15London Heathrow
7h 45m
BOS21:00Boston Logan Intl
28 Oct
BOS20:20Boston Logan Intl
6h 45m
LHR07:05London Heathrow

See travel insights to Boston from

How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and Boston?

What is the cheapest month to fly to Boston?

In general, September is the cheapest month to fly from London to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £388. The month of February is another great option to travel to Boston, with average flight prices from London averaging around £392.

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 £485. 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 £580. 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 in the afternoon. Flights from London to Boston during this time can be as low as £491. In the evening is when there is more demand to fly to Boston, so prices are often more expensive at around £701 per ticket.

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

Fly from London Heathrow to Boston Logan Intl for the best London - 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 when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around £468 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London for as low as £419 on momondo.

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

There are 4 cabin classes available to choose from on London 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 to Boston flights?

You could potentially save up to 24% on your flight if you consider stops on a London to Boston flight.

How have London to Boston flight prices changed over time?

As of June 2025, prices for London to Boston flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from London to Boston

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

Cheap London to Boston (LON to BOS) flight deals and tips

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

Best price found

£144

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from London in the past 72 hours is £144. The best return flight deal from London to Boston found on momondo in the last 72 hours is £302.
The fastest flight from London to Boston takes 7h 20m
Direct flights go from London to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)

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

    The distance between London and Boston Logan Intl is about 3269.0 mi. 7h 20m is a normal flight duration for this route.

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

    Prices for flights from London to Boston Logan Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Boston Logan Intl Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Boston Logan Intl Airport.

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

    The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

  • What is the most popular airline from London to Boston?


Best airlines flying from London to Boston

Compare and see reviews for airlines that fly from London to Boston with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £7Free CancellationRating
7.1
1,118 reviews
Search Aer Lingus flights
PLAYPriceFrom £259Free CancellationRating
7.0
102 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom £279Free CancellationRating
7.1
1,885 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom £304Free CancellationRating
7.0
499 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom £305Free CancellationRating
7.3
1,387 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom £309Free CancellationRating
6.7
7,139 reviews
Search Lufthansa flights
Air FrancePriceFrom £336Free CancellationRating
7.5
1,463 reviews
Search Air France flights
United AirlinesPriceFrom £336Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £336Free CancellationRating
7.4
652 reviews
Search Virgin Atlantic flights
KLMPriceFrom £336Free CancellationRating
7.8
1,358 reviews
Search KLM flights
  • Delta Flights From London to Boston

    Delta is one of the most popular airlines flying from London to Boston, operating 21 flights/week on average for this route. A good Delta flight deal for London to Boston starts from £498 round-trip, up to an average price of £686. Our users have rated Delta at 8.0/10.

  • KLM Flights From London to Boston

    KLM (7.8/10 from 1,358 reviews) operates around 21 flights from London to Boston in any given week. The average KLM airfare for this route is around £546, with deals from around £457 rare but found on momondo. Referenced prices are for round-trip London to Boston flight 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
Braintree
Needham
Plymouth
Falmouth
Everett
York Beach
West Yarmouth
Brookline
Somerville
Warwick
Concord
Cape Neddick
South Portland
Revere
Hampton
Sandwich

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?

Flights from London to Boston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential London to Boston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Boston, momondo offers a useful price alert feature which will track prices for flights to Boston from London and alert you when they change.


An easier way to manage your Boston trip

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1 adult
Wed 18/6
Wed 25/6

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