What is the most punctual flight time for Boston to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

How often are flights from Boston to London delayed?

Historically, on average around 11% of flights between Boston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

How many flights depart from Boston to London on average per day?

As of December 2025, there are 30 flights per day flying from Boston to London. The most common time of day flights depart is 19:00, with 100% of flights taking off in the evening.

Which airline has the best punctuality record on Boston to London flights?

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

How many flights depart from Boston to London on average per week?

214 flights are operational weekly from Boston to London as of December 2025. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Boston Logan Intl to London?

Delta, British Airways, and Icelandair are the most popular carriers operating from Boston Logan Intl to London

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 refresh daily.

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

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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to London.

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

The required travel and health documents for your London 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 licence and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$336 Cheap Flights from Boston to London in 2025/26

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19:12 - 06:55

BOS

LHR

6h 43mdirect

09:20 - 12:16

LHR

BOS

7h 56mdirect

$758JetBlue

Fri, 20 Feb - Thu, 26 Feb

18:40 - 20:35

BOS

LHR

20h 55m1 stop

12:05 - 20:20

LHR

BOS

13h 15m1 stop

$760United Airlines

Tue, 20 Jan - Tue, 27 Jan

20:00 - 07:50

BOS

LHR

6h 50mdirect

06:20 - 13:40

LHR

BOS

12h 20m1 stop

$763Delta

Wed, 31 Dec - Tue, 20 Jan

10:15 - 07:10

BOS

LHR

15h 55m1 stop

12:05 - 20:20

LHR

BOS

13h 15m1 stop

$764United Airlines

Thu, 12 Feb - Wed, 25 Feb

23:55 - 11:25

BOS

LHR

6h 30mdirect

09:40 - 12:30

LHR

BOS

7h 50mdirect

$772Delta

Wed, 31 Dec - Mon, 12 Jan

19:50 - 10:55

BOS

LGW

10h 05m1 stop

11:55 - 17:50

LGW

BOS

10h 55m1 stop

$776Icelandair

Sun, 11 Jan - Thu, 15 Jan

13:00 - 08:50

BOS

LCY

14h 50m2 stops

08:40 - 18:55

LCY

BOS

15h 15m1 stop

$788Virgin Atlantic

Wed, 21 Jan - Fri, 23 Jan

17:20 - 18:30

BOS

LCY

20h 10m2 stops

16:45 - 13:45

LCY

BOS

26h 00m1 stop

$803ITA Airways

Sun, 1 Mar - Tue, 3 Mar

19:50 - 10:55

BOS

LGW

10h 05m1 stop

11:55 - 17:50

LGW

BOS

10h 55m1 stop

$852Icelandair

Wed, 21 Jan - Sun, 25 Jan

13:00 - 07:15

BOS

LCY

13h 15m2 stops

07:45 - 13:30

LCY

BOS

10h 45m1 stop

$868Virgin Atlantic

Mon, 12 Jan - Thu, 22 Jan

Delta flights from Boston to London

Our best Delta deals on Boston to London flight tickets

Delta

31 Dec

BOS23:55Boston Logan Intl

6h 30m

LHR11:25London Heathrow

21 Jan

LHR09:00London Heathrow

12h 20m

1 stop

BOS16:20Boston Logan Intl

$763

Find similar

Delta

8 Dec

BOS20:00Boston Logan Intl

6h 50m

LHR07:50London Heathrow

15 Dec

LHR11:45London Heathrow

12h 10m

1 stop

BOS18:55Boston Logan Intl

$766

Find similar

Delta

12 Dec

BOS11:25Boston Logan Intl

14h 40m

1 stop

LHR07:05London Heathrow

23 Jan

LHR06:20London Heathrow

12h 20m

1 stop

BOS13:40Boston Logan Intl

$769

Find similar

Scandinavian Airlines flights from Boston to London

Our best Scandinavian Airlines deals on Boston to London flight tickets

Scandinavian Airlines

22 Jan

BOS10:05Boston Logan Intl

18h 15m

2 stops

LHR09:20London Heathrow

25 Jan

LHR06:40London Heathrow

14h 10m

2 stops

BOS15:50Boston Logan Intl

$820

Find similar

Scandinavian Airlines

11 Jan

BOS13:00Boston Logan Intl

15h 20m

2 stops

LHR09:20London Heathrow

15 Jan

LHR19:30London Heathrow

25h 20m

1 stop

BOS15:50Boston Logan Intl

$837

Find similar

Scandinavian Airlines

11 Jan

BOS10:05Boston Logan Intl

18h 15m

2 stops

LHR09:20London Heathrow

15 Jan

LHR07:05London Heathrow

13h 45m

2 stops

BOS15:50Boston Logan Intl

$843

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 20/2

19:12-06:55

Nonstop6h 43m

London Heathrow

Thu 26/2

09:20-12:16

Nonstop7h 56m

$758

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 20/1

18:40-20:35

1 stop20h 55m

London Heathrow

Tue 27/1

12:05-20:20

1 stop13h 15m

$760

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 31/12

20:00-07:50

Nonstop6h 50m

London Heathrow

Tue 20/1

06:20-13:40

1 stop12h 20m

$763

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 12/2

10:15-07:10

1 stop15h 55m

London Heathrow

Wed 25/2

12:05-20:20

1 stop13h 15m

$764

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 31/12

23:55-11:25

Nonstop6h 30m

London Heathrow

Mon 12/1

09:40-12:30

Nonstop7h 50m

$772

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sun 11/1

19:50-10:55

1 stop10h 05m

London Gatwick

Thu 15/1

11:55-17:50

1 stop10h 55m

$776

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Wed 21/1

13:00-08:50

2 stops14h 50m

London City

Fri 23/1

08:40-18:55

1 stop15h 15m

$788

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Sun 1/3

17:20-18:30

2 stops20h 10m

London City

Tue 3/3

16:45-13:45

1 stop26h 00m

$803

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Wed 21/1

19:50-10:55

1 stop10h 05m

London Gatwick

Sun 25/1

11:55-17:50

1 stop10h 55m

$852

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Mon 12/1

13:00-07:15

2 stops13h 15m

London City

Thu 22/1

07:45-13:30

1 stop10h 45m

$868

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to London?

If you aren’t able to travel during the month of October, then book flights to London from Boston during September instead. Flights to London in September, while not as cheap as those in October, still average around $820.

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

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $830. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to London for around $871.

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 $956 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 $891 on momondo.

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

There are 3 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.

How have Boston to London flight prices changed over time?

As of December 2025, prices for Boston to London flights are approximately 18% cheaper 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

Fastest flight time	6h 40m
Direct flights	Every day
Airports in London	2 airports

The fastest flight from Boston to London takes 6h 40m

Direct flights go from Boston to London every day.

There are 2 airports near London: London Heathrow (LHR), London Gatwick (LGW)

Search flight deals

How far is Boston Logan Intl to London by plane?
Boston Logan Intl and London are 5260.9 km apart from one another. By plane, this route typically takes 6h 30m.
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 refresh daily.
How old do you have to be to fly from Boston Logan Intl Airport to London?
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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London 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 licence and a passport valid for six months after your intended arrival at London. 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 Boston to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to London is Boeing 777-200/200ER (25.21% of total bookings). The next most popular plane models are Boeing 777 (24.54%), Airbus A330-900neo (11.08%), and Boeing 787-10 Dreamliner (10.70%).

Gatwick

Hounslow

Wembley

Milton Keynes

Brentford

Deal

Dover

Ipswich

Abingdon

Eastbourne

Slough

Chichester

Canterbury

Kingston upon Thames

Brentwood

Guildford

Sutton

Maidstone

Watford

Ashford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to London. momondo saves you time and could save you money on your trip.

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

Flights from Boston to London 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 Boston to London?

momondo helps you find the best flight between Boston and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Boston to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Cheap flights from Boston to London from $336

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 21/4. 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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Big names, great deals

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Delta flights from Boston to London

Our best Delta deals on Boston to London flight tickets

Scandinavian Airlines flights from Boston to London

Our best Scandinavian Airlines deals on Boston to London flight tickets

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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?

If you aren’t able to travel during the month of October, then book flights to London from Boston during September instead. Flights to London in September, while not as cheap as those in October, still average around $820.

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

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $830. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to London for around $871.

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?

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

There are 3 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.

How have Boston to London flight prices changed over time?

As of December 2025, prices for Boston to London flights are approximately 18% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Boston Logan Intl to London?

Delta, British Airways, and Icelandair are the most popular carriers operating from Boston Logan Intl to London

How often are flights from Boston to London delayed?

Historically, on average around 11% of flights between Boston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

What is the most punctual flight time for Boston to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boston to London flights?

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

How many flights depart from Boston to London on average per day?

As of December 2025, there are 30 flights per day flying from Boston to London. The most common time of day flights depart is 19:00, with 100% of flights taking off in the evening.

How many flights depart from Boston to London on average per week?

214 flights are operational weekly from Boston to London as of December 2025. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.

When to book flights from Boston to London

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

Fastest flight time

Direct flights

Airports in London

How far is Boston Logan Intl to London by plane?

When did momondo last update prices 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?

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

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

Travelling to a place near London?

Why use momondo?

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

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

How can momondo help me find flights 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?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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 49.5 km from London