Cheap flights from Boston to London from £154

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to London departing on 6/2. 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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Air Canada Logo
15:40 - 07:10BOS-LHR
10h 30m1 stop
Air Canada Logo
06:00 - 19:42LHR-BOS
18h 42m2 stops
£380Air Canada
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Wed, 3 Dec - Tue, 13 Jan
Multiple Airlines Logo
05:30 - 19:50BOS-LTN
33h 20m3 stops
Multiple Airlines Logo
05:45 - 18:35LTN-BOS
17h 50m2 stops
£380Multiple Airlines
Find Deal
Wed, 19 Nov - Wed, 26 Nov
JetBlue Logo
17:00 - 09:30BOS-LHR
11h 30m1 stop
JetBlue Logo
09:20 - 12:16LHR-BOS
7h 56mdirect
£382JetBlue
Find Deal
Wed, 28 Jan - Mon, 2 Feb
JetBlue Logo
19:10 - 06:55BOS-LHR
6h 45mdirect
JetBlue Logo
09:20 - 12:16LHR-BOS
7h 56mdirect
£383JetBlue
Find Deal
Fri, 9 Jan - Sat, 17 Jan
Virgin Atlantic Logo
19:10 - 06:50BOS-LHR
6h 40mdirect
Virgin Atlantic Logo
06:30 - 13:20LHR-BOS
11h 50m1 stop
£386Virgin Atlantic
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Thu, 4 Dec - Thu, 11 Dec
British Airways Logo
19:25 - 07:00BOS-LHR
6h 35mdirect
British Airways Logo
13:30 - 16:10LHR-BOS
7h 40mdirect
£387British Airways
Find Deal
Wed, 19 Nov - Mon, 24 Nov
Virgin Atlantic Logo
19:10 - 06:50BOS-LHR
6h 40mdirect
Virgin Atlantic Logo
09:00 - 16:20LHR-BOS
12h 20m1 stop
£411Virgin Atlantic
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Thu, 1 Jan - Thu, 8 Jan
British Airways Logo
07:30 - 19:00BOS-LHR
6h 30mdirect
British Airways Logo
13:30 - 16:15LHR-BOS
7h 45mdirect
£415British Airways
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Sun, 4 Jan - Sat, 31 Jan
KLM Logo
19:05 - 09:30BOS-LCY
9h 25m1 stop
KLM Logo
07:45 - 13:30LCY-BOS
10h 45m1 stop
£428KLM
Find Deal
Wed, 31 Dec - Thu, 29 Jan
KLM Logo
19:10 - 09:30BOS-LCY
9h 20m1 stop
KLM Logo
13:45 - 18:55LCY-BOS
10h 10m1 stop
£434KLM
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Wed, 21 Jan - Sun, 25 Jan

Air Canada flights from Boston to London

Our best Air Canada deals on Boston to London flight tickets
Air Canada
3 Dec
BOS15:40Boston Logan Intl
10h 30m
1 stop
LHR07:10London Heathrow
13 Jan
LHR06:00London Heathrow
18h 42m
2 stops
BOS19:42Boston Logan Intl
Air Canada
15 Nov
BOS19:55Boston Logan Intl
30h 15m
2 stops
LHR07:10London Heathrow
21 Nov
LHR06:50London Heathrow
13h 02m
2 stops
BOS14:52Boston Logan Intl
Air Canada
17 Nov
BOS10:15Boston Logan Intl
15h 15m
2 stops
LHR06:30London Heathrow
20 Nov
LHR06:50London Heathrow
17h 22m
2 stops
BOS19:12Boston Logan Intl

JetBlue flights from Boston to London

Our best JetBlue deals on Boston to London flight tickets
JetBlue
28 Jan
BOS17:00Boston Logan Intl
11h 30m
1 stop
LHR09:30London Heathrow
2 Feb
LHR09:20London Heathrow
7h 56m
BOS12:16Boston Logan Intl
JetBlue
9 Nov
BOS19:12Boston Logan Intl
6h 43m
LHR06:55London Heathrow
16 Nov
LHR09:20London Heathrow
7h 54m
BOS12:14Boston Logan Intl
JetBlue
15 Jan
BOS19:10Boston Logan Intl
6h 45m
LHR06:55London Heathrow
20 Jan
LHR09:20London Heathrow
7h 56m
BOS12:16Boston Logan Intl

momondo Fare Finder

 
Customise your flight search to find flights from Boston to London 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 7 November 2025.
Use the filters below to find and compare flights from Boston to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/12

15:40-07:10

1 stop10h 30m

London Heathrow

Tue 13/1

06:00-19:42

2 stops18h 42m

£380

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Wed 19/11

05:30-19:50

3 stops33h 20m

London Luton

Wed 26/11

05:45-18:35

2 stops17h 50m

£380

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 28/1

17:00-09:30

1 stop11h 30m

London Heathrow

Mon 2/2

09:20-12:16

Nonstop7h 56m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 9/1

19:10-06:55

Nonstop6h 45m

London Heathrow

Sat 17/1

09:20-12:16

Nonstop7h 56m

£383

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 4/12

19:10-06:50

Nonstop6h 40m

London Heathrow

Thu 11/12

06:30-13:20

1 stop11h 50m

£386

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 19/11

19:25-07:00

Nonstop6h 35m

London Heathrow

Mon 24/11

13:30-16:10

Nonstop7h 40m

£387

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 1/1

19:10-06:50

Nonstop6h 40m

London Heathrow

Thu 8/1

09:00-16:20

1 stop12h 20m

£411

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/1

07:30-19:00

Nonstop6h 30m

London Heathrow

Sat 31/1

13:30-16:15

Nonstop7h 45m

£415

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Wed 31/12

19:05-09:30

1 stop9h 25m

London City

Thu 29/1

07:45-13:30

1 stop10h 45m

£428

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Wed 21/1

19:10-09:30

1 stop9h 20m

London City

Sun 25/1

13:45-18:55

1 stop10h 10m

£434

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from Boston to London

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 London?

The cheapest month to fly to London from Boston is in January. Flight prices, which tend to average around £412, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Boston averaging around £412.

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

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £488. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boston to London for around £607.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £525. Flights in the afternoon are often more expensive, with an average ticket price of £575.

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

Fly from Boston Logan Intl to London Heathrow for the best Boston Logan Intl - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £487 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Boston for as low as £460 on momondo.

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

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

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

How have Boston to London flight prices changed over time?

As of November 2025, prices for Boston to London flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Boston to London

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

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

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

Best price found

£184

Fastest flight time

6h 30m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Boston in the past 72 hours is £184. The best return flight deal from Boston to London found on momondo in the last 72 hours is £420.
The fastest flight from Boston to London takes 6h 30m
Direct flights go from Boston to London every day.
There is 1 airport near London: London Heathrow (LHR)
  • How far is Boston Logan Intl to London by plane?

    London is 3269.0 mi away from Boston Logan Intl. Flights usually cover this in 6h 30m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Boston Logan Intl Airport to London are updated daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London 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 London. 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 Boston to London?

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

Best airlines flying from Boston to London

Compare and see reviews for airlines that fly from Boston to London with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom £236Free CancellationRating
7.4
1,484 reviews
Search Air France flights
IcelandairPriceFrom £264Free CancellationRating
7.1
572 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £359Free CancellationRating
7.5
672 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £363Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
FinnairPriceFrom £366Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
KLMPriceFrom £368Free CancellationRating
7.7
1,408 reviews
Search KLM flights
British AirwaysPriceFrom £385Free CancellationRating
6.7
7,500 reviews
Search British Airways flights
IberiaPriceFrom £437Free CancellationRating
7.0
3,007 reviews
Search Iberia flights
  • KLM Flights From Boston to London

    The lowest priced KLM flight from Boston to London from the last 72 hours was £368. Generally, KLM has 16 flights on this route every week with an average price of £587. KLM is rated 7.7/10 by our users.

  • Finnair Flights From Boston to London

    Another popular option for Boston to London flights is Finnair (7.6/10, 1,335 ratings). Finnair flies from Boston to London around 26 times per week, with deals starting from £366 round-trip and rising to an average price of around £595.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Dover
Colchester
Chelmsford
Hayes
Worthing
Ramsgate
Dartford
Bedford
Winchester

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to London for you.

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

Yes. momondo allows you to filter the results for Boston to London flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to London.

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

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

An easier way to manage your London 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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1 adult
Sun 7/12
Sun 14/12

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London