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Cheap flights from London to Boston from £126

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 1/4. 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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Find the cheapest flights from London to Boston

Cheap return flights

These are some of the best return flight deals from London to Boston that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Boston.

Cheap last-minute flights

Planning a quick getaway from London to Boston? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Boston, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London to Boston

Find recent return train or bus tickets from London to Boston.

All return flight deals from London to Boston

The cheapest plane tickets from London to Boston found on KAYAK recently.
07:00 - 18:00LTN-BOS
15h 00m1 stop
19:20 - 13:30BOS-LTN
14h 10m1 stop
Tue, 18 Mar - Wed, 26 Mar
07:00 - 17:00LTN-BOS
15h 00m1 stop
19:20 - 13:55BOS-LTN
14h 35m1 stop
Tue, 4 Mar - Mon, 24 Mar
11:00 - 17:00STN-BOS
11h 00m1 stop
18:20 - 10:00BOS-STN
10h 40m1 stop
£286PLAY
Find Deal
Tue, 11 Feb - Tue, 25 Feb
11:00 - 17:00STN-BOS
11h 00m1 stop
19:20 - 10:00BOS-STN
10h 40m1 stop
£290PLAY
Find Deal
Tue, 4 Mar - Tue, 11 Mar
06:20 - 13:58LHR-BOS
12h 38m1 stop
20:10 - 07:55BOS-LHR
6h 45mdirect
£349Virgin Atlantic
Find Deal
Tue, 11 Feb - Mon, 17 Feb
09:00 - 17:35LHR-BOS
12h 35m1 stop
19:45 - 13:45BOS-LHR
14h 00m1 stop
£352Virgin Atlantic
Find Deal
Mon, 10 Mar - Thu, 20 Mar
11:25 - 14:00LHR-BOS
7h 35mdirect
18:25 - 05:55BOS-LHR
6h 30mdirect
£388British Airways
Find Deal
Wed, 29 Jan - Wed, 5 Feb
11:25 - 14:00LHR-BOS
7h 35mdirect
18:25 - 05:55BOS-LHR
6h 30mdirect
£392Finnair
Find Deal
Mon, 27 Jan - Wed, 5 Feb
11:25 - 14:00LHR-BOS
7h 35mdirect
19:36 - 10:25BOS-LHR
9h 49m1 stop
£393Finnair
Find Deal
Mon, 27 Jan - Wed, 5 Feb
17:00 - 19:35LHR-BOS
7h 35mdirect
19:25 - 05:55BOS-LHR
6h 30mdirect
£403British Airways
Find Deal
Fri, 7 Mar - Mon, 10 Mar
16:50 - 21:05LGW-BOS
33h 15m1 stop
£126Vueling
Find Deal
Tue, 1 Apr
07:10 - 21:05LGW-BOS
18h 55m1 stop
£160Vueling
Find Deal
Wed, 2 Apr
09:10 - 21:40LGW-BOS
16h 30m1 stop
£162Vueling
Find Deal
Thu, 27 Mar
11:00 - 17:00STN-BOS
11h 00m1 stop
£192PLAY
Find Deal
Tue, 11 Feb
11:40 - 18:00STN-BOS
11h 20m1 stop
£220PLAY
Find Deal
Thu, 5 Jun
10:35 - 13:25LHR-BOS
7h 50mdirect
£378Finnair
Find Deal
Mon, 27 Jan
11:25 - 14:00LHR-BOS
7h 35mdirect
£389British Airways
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Mon, 3 Feb
20:10 - 13:35LCY-BOS
22h 25m1 stop
£417Virgin Atlantic
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Thu, 8 May
08:40 - 20:53LCY-BOS
17h 13m2 stops
£473British Airways
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Sat, 15 Feb
10:00 - 23:51LCY-BOS
17h 51m2 stops
£552Virgin Atlantic
Find Deal
Thu, 27 Mar
06:00 - 14:30LHR-BOS
13h 30m1 stop
18:10 - 18:55BOS-LHR
19h 45m1 stop
£336TAP AIR PORTUGAL
Find Deal
Fri, 17 Jan - Thu, 23 Jan
06:00 - 15:15LHR-BOS
14h 15m1 stop
18:10 - 12:40BOS-LHR
13h 30m1 stop
£337TAP AIR PORTUGAL
Find Deal
Fri, 17 Jan - Thu, 23 Jan
11:00 - 17:00STN-BOS
11h 00m1 stop
18:20 - 10:00BOS-STN
10h 40m1 stop
£376PLAY
Find Deal
Wed, 22 Jan - Wed, 29 Jan
11:00 - 17:00STN-BOS
11h 00m1 stop
18:20 - 10:00BOS-STN
10h 40m1 stop
£442PLAY
Find Deal
Sun, 19 Jan - Thu, 27 Feb
10:35 - 13:25LHR-BOS
7h 50mdirect
20:20 - 07:50BOS-LHR
6h 30mdirect
£556Finnair
Find Deal
Tue, 21 Jan - Thu, 30 Jan
17:05 - 23:09LHR-BOS
11h 04m1 stop
20:20 - 07:50BOS-LHR
6h 30mdirect
£557Finnair
Find Deal
Tue, 21 Jan - Thu, 30 Jan
14:35 - 17:30LHR-BOS
7h 55mdirect
20:10 - 07:55BOS-LHR
6h 45mdirect
£939Virgin Atlantic
Find Deal
Fri, 17 Jan - Thu, 23 Jan
09:20 - 19:00LCY-BOS
14h 40m2 stops
21:15 - 16:35BOS-LCY
14h 20m1 stop
£947Virgin Atlantic
Find Deal
Wed, 22 Jan - Wed, 29 Jan
11:25 - 18:59LCY-BOS
12h 34m1 stop
17:45 - 08:35BOS-LCY
9h 50m1 stop
£1,159British Airways
Find Deal
Sat, 18 Jan - Thu, 23 Jan
12:10 - 18:59LHR-BOS
11h 49m1 stop
20:20 - 07:50BOS-LHR
6h 30mdirect
£2,390British Airways
Find Deal
Fri, 17 Jan - Sat, 18 Jan
14:35 - 17:30LHR-BOS
7h 55mdirect
21:10 - 07:55BOS-LHR
6h 45mdirect
£365KLM
Find Deal
Wed, 5 Mar - Wed, 26 Mar
10:25 - 13:10LHR-BOS
7h 45mdirect
21:35 - 09:25BOS-LHR
6h 50mdirect
£367Air France
Find Deal
Wed, 30 Apr - Mon, 5 May
08:50 - 11:35LHR-BOS
7h 45mdirect
21:10 - 07:55BOS-LHR
6h 45mdirect
£369Virgin Atlantic
Find Deal
Wed, 5 Mar - Wed, 26 Mar
14:35 - 17:30LHR-BOS
7h 55mdirect
19:25 - 07:05BOS-LHR
6h 40mdirect
£371Virgin Atlantic
Find Deal
Wed, 5 Feb - Mon, 10 Feb
11:25 - 14:00LHR-BOS
7h 35mdirect
08:30 - 18:55BOS-LHR
6h 25mdirect
£372British Airways
Find Deal
Wed, 5 Mar - Mon, 10 Mar
17:00 - 19:35LHR-BOS
7h 35mdirect
19:25 - 05:55BOS-LHR
6h 30mdirect
£373British Airways
Find Deal
Wed, 5 Mar - Thu, 27 Mar
11:25 - 14:00LHR-BOS
7h 35mdirect
22:00 - 09:30BOS-LHR
6h 30mdirect
£390Finnair
Find Deal
Mon, 27 Jan - Wed, 5 Feb
11:25 - 14:00LHR-BOS
7h 35mdirect
18:25 - 05:55BOS-LHR
6h 30mdirect
£392Finnair
Find Deal
Mon, 27 Jan - Wed, 5 Feb
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
£549Icelandair
Find Deal
Wed, 5 Feb - Sat, 8 Feb
12:10 - 14:49LGW-BOS
7h 39mdirect
21:40 - 09:35BOS-LGW
6h 55mdirect
£582Icelandair
Find Deal
Fri, 23 May - Mon, 26 May

Lufthansa flights from London to Boston

Our best Lufthansa deals on London to Boston flight tickets
Lufthansa
5 Mar
LHR07:40London Heathrow
15h 55m
1 stop
BOS18:35Boston Logan Intl
27 Mar
BOS14:41Boston Logan Intl
11h 59m
1 stop
LHR06:40London Heathrow
Lufthansa
4 Feb
LHR13:45London Heathrow
11h 35m
1 stop
BOS20:20Boston Logan Intl
12 Feb
BOS15:35Boston Logan Intl
10h 20m
1 stop
LHR06:55London Heathrow
Lufthansa
27 Jan
LHR07:40London Heathrow
15h 55m
1 stop
BOS18:35Boston Logan Intl
13 Feb
BOS14:00Boston Logan Intl
11h 40m
1 stop
LHR06:40London Heathrow

United Airlines flights from London to Boston

Our best United Airlines deals on London to Boston flight tickets
United Airlines
3 Feb
LHR09:30London Heathrow
29h 12m
2 stops
BOS09:42Boston Logan Intl
9 Feb
BOS19:28Boston Logan Intl
20h 07m
2 stops
LHR20:35London Heathrow
United Airlines
11 Mar
LHR06:30London Heathrow
16h 12m
2 stops
BOS18:42Boston Logan Intl
17 Mar
BOS15:40Boston Logan Intl
14h 05m
2 stops
LHR09:45London Heathrow
United Airlines
29 Jan
LHR13:45London Heathrow
11h 35m
1 stop
BOS20:20Boston Logan Intl
5 Feb
BOS15:40Boston Logan Intl
10h 30m
1 stop
LHR07:10London 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 £430. The month of February is another great option to travel to Boston, with average flight prices from London averaging around £433.

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 Tuesday when prices can be found for as low as £417. 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 £570. 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 evening. Flights from London to Boston during this time can be as low as £8. In the afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around £513 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 23 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around £518 when searching 23 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 £481 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.

How have London to Boston flight prices changed over time?

As of January 2025, prices for London to Boston flights are approximately 1% 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

£126

Fastest flight time

7h 30m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from London in the past 72 hours is £126. The best return flight deal from London to Boston found on momondo in the last 72 hours is £268.
The fastest flight from London to Boston takes 7h 30m
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 30m 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 £8Free CancellationRating
7.1
1,077 reviews
Search Aer Lingus flights
PLAYPriceFrom £284Free CancellationRating
7.1
92 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom £306Free CancellationRating
7.1
1,862 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom £332Free CancellationRating
8.0
8,511 reviews
Search Delta flights
IcelandairPriceFrom £341Free CancellationRating
7.1
501 reviews
Search Icelandair flights
KLMPriceFrom £366Free CancellationRating
7.8
1,339 reviews
Search KLM flights
Air FrancePriceFrom £368Free CancellationRating
7.4
1,487 reviews
Search Air France flights
British AirwaysPriceFrom £368Free CancellationRating
6.6
6,824 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £371Free CancellationRating
7.5
664 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom £374Free CancellationRating
7.0
8,587 reviews
Search Air Canada flights
  • Delta Flights From London to Boston

    Delta is one of the most popular airlines flying from London to Boston, operating 13 flights/week on average for this route. A good Delta flight deal for London to Boston starts from £406 round-trip, up to an average price of £674. Our users have rated Delta at 8.0/10.

  • KLM Flights From London to Boston

    KLM (7.8/10 from 1,339 reviews) operates around 13 flights from London to Boston in any given week. The average KLM airfare for this route is around £568, with deals from around £448 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
Concord
Braintree
Needham
South Portland
Everett
Brookline
Revere
Somerville
Concord
Warwick
Hampton
South Yarmouth
Laconia
Amesbury
Hull
Chatham
Dover

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

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

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