How often are flights from London to Boston delayed?

Historically, on average around 8% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

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

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

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

The number of flights available between London and Boston is 210 per week as of January 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

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

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

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

The number of flights available between London and Boston is 30 per day as of January 2026. The most frequent departure time is 19:00, with 42% of daily flights leaving in the afternoon.

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

United Airlines, Lufthansa, and LEVEL are the most popular carriers operating from London to Boston Logan Intl

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 were last updated today.

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

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 London to Boston Logan Intl Airport.

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

The necessary travel and health documents for your Boston Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€302 Cheap Flights from London to Boston in 2026

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One-way

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12:45 - 21:55

LGW

BOS

13h 10m1 stop

22:50 - 08:50

BOS

LGW

29h 00m1 stop

€437LEVEL

Thu, 19 Mar - Sat, 9 May

13:30 - 16:15

LHR

BOS

7h 45mdirect

19:35 - 09:40

BOS

LHR

9h 05m1 stop

€438Finnair

Mon, 26 Jan - Mon, 2 Feb

12:05 - 19:55

LGW

BOS

12h 50m1 stop

18:05 - 09:45

BOS

LGW

10h 40m1 stop

€438TAP AIR PORTUGAL

Mon, 13 Apr - Wed, 29 Apr

13:30 - 16:15

LHR

BOS

7h 45mdirect

19:15 - 07:00

BOS

LHR

6h 45mdirect

€439British Airways

Wed, 21 Jan - Thu, 29 Jan

11:55 - 17:50

LGW

BOS

10h 55m1 stop

12:35 - 10:55

BOS

LGW

18h 20m1 stop

€440Icelandair

Fri, 6 Mar - Wed, 25 Mar

13:30 - 16:15

LHR

BOS

7h 45mdirect

07:30 - 19:00

BOS

LHR

6h 30mdirect

€441Multiple Airlines

Mon, 26 Jan - Mon, 2 Feb

11:55 - 17:50

LGW

BOS

10h 55m1 stop

19:50 - 10:55

BOS

LGW

10h 05m1 stop

€448Icelandair

Thu, 26 Feb - Sat, 7 Mar

11:45 - 22:56

LGW

BOS

16h 11m2 stops

16:45 - 10:50

BOS

LGW

13h 05m1 stop

€453British Airways

Thu, 29 Jan - Mon, 2 Feb

10:40 - 20:10

LGW

BOS

14h 30m1 stop

18:05 - 09:50

BOS

LGW

10h 45m1 stop

€455TAP AIR PORTUGAL

Thu, 29 Jan - Thu, 5 Feb

21:20 - 20:55

STN

BOS

28h 35m1 stop

22:10 - 18:25

BOS

STN

15h 15m2 stops

€554Multiple Airlines

Mon, 26 Jan - Mon, 2 Feb

LEVEL flights from London to Boston

Our best LEVEL deals on London to Boston flight tickets

LEVEL

19 Mar

LGW12:45London Gatwick

13h 10m

1 stop

BOS21:55Boston Logan Intl

9 May

BOS22:50Boston Logan Intl

29h 00m

1 stop

LGW08:50London Gatwick

€437

LEVEL

26 Jan

LGW16:25London Gatwick

33h 30m

1 stop

BOS20:55Boston Logan Intl

2 Feb

BOS22:40Boston Logan Intl

29h 30m

1 stop

LGW09:10London Gatwick

€463

LEVEL

12 Jan

LGW10:10London Gatwick

15h 45m

1 stop

BOS20:55Boston Logan Intl

19 Jan

BOS22:40Boston Logan Intl

11h 45m

1 stop

LGW15:25London Gatwick

€727

Scandinavian Airlines flights from London to Boston

Our best Scandinavian Airlines deals on London to Boston flight tickets

Scandinavian Airlines

2 Feb

LHR21:05London Heathrow

23h 45m

2 stops

BOS15:50Boston Logan Intl

4 May

BOS17:40Boston Logan Intl

17h 45m

2 stops

LHR16:25London Heathrow

€441

Scandinavian Airlines

30 Mar

LHR21:05London Heathrow

24h 05m

2 stops

BOS16:10Boston Logan Intl

12 Apr

BOS17:40Boston Logan Intl

15h 55m

2 stops

LHR14:35London Heathrow

€443

Scandinavian Airlines

10 Apr

LHR06:40London Heathrow

13h 55m

1 stop

BOS15:35Boston Logan Intl

26 Apr

BOS17:40Boston Logan Intl

17h 45m

2 stops

LHR16:25London Heathrow

€450

Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 19/3

12:45-21:55

1 stop13h 10m

Boston Logan Intl

Sat 9/5

22:50-08:50

1 stop29h 00m

€437

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 26/1

13:30-16:15

Nonstop7h 45m

Boston Logan Intl

Mon 2/2

19:35-09:40

1 stop9h 05m

€438

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Mon 13/4

12:05-19:55

1 stop12h 50m

Boston Logan Intl

Wed 29/4

18:05-09:45

1 stop10h 40m

€438

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 21/1

13:30-16:15

Nonstop7h 45m

Boston Logan Intl

Thu 29/1

19:15-07:00

Nonstop6h 45m

€439

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Fri 6/3

11:55-17:50

1 stop10h 55m

Boston Logan Intl

Wed 25/3

12:35-10:55

1 stop18h 20m

€440

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 26/1

13:30-16:15

Nonstop7h 45m

Boston Logan Intl

Mon 2/2

07:30-19:00

Nonstop6h 30m

€441

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 26/2

11:55-17:50

1 stop10h 55m

Boston Logan Intl

Sat 7/3

19:50-10:55

1 stop10h 05m

€448

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 29/1

11:45-22:56

2 stops16h 11m

Boston Logan Intl

Mon 2/2

16:45-10:50

1 stop13h 05m

€453

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 29/1

10:40-20:10

1 stop14h 30m

Boston Logan Intl

Thu 5/2

18:05-09:50

1 stop10h 45m

€455

LondonBoston

STN - BOS

STNBOS

London Stansted

Mon 26/1

21:20-20:55

1 stop28h 35m

Boston Logan Intl

Mon 2/2

22:10-18:25

2 stops15h 15m

€554

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between London and Boston?

What is the cheapest month to fly to Boston?

The month of September is, on average, the cheapest month to fly to Boston from London, with most prices found around €449. The month of February is another great option to travel to Boston, with average flight prices from London averaging around €457.

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

The cheapest day to depart from London to Boston is on a Saturday when prices can be found for as low as €708. Flights from London to Boston on a Monday will generally be more expensive and average around €1,058. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to Boston from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as €675 when looking at flights departing in the morning. Flights in the evening are often more expensive, with an average ticket price of €1,058.

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 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around €536 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 for as low as €485 on momondo.

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

There are 2 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?

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

How have London to Boston flight prices changed over time?

As of January 2026, prices for London to Boston flights are approximately 102% 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	€708
Fastest flight time	7h 40m
Direct flights	Every day
Airports in Boston	1 airport

The best flight deal from London to Boston found on momondo in the last 72 hours is €708

The fastest flight from London to Boston takes 7h 40m

Direct flights go from London to Boston every day.

There is 1 airport in Boston. From London there are direct flights to Boston Logan Intl (BOS).

Search flight deals

How far is London to Boston Logan Intl by plane?
London and Boston Logan Intl are 5260.9 km apart from one another. In terms of flight time, this usually takes a little over 7h 40m.
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 were last updated today.
How old do you have to be to fly from London to Boston Logan Intl Airport?
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 London to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The necessary travel and health documents for your Boston Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Boston?
momondo data reveals that the most frequently booked plane model on the route from London to Boston is Boeing 777-200/200ER, representing 27.44% of all bookings. The subsequent popular models are Boeing 777 at 19.68%, Airbus A330-900neo at 15.72%, and Boeing 787-9 Dreamliner at 10.94%.

Everett

Quincy

Brookline

Cambridge

Medford

Warwick

Woburn

Why use momondo?

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

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 London to Boston for you.

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

momondo does allow users to show only those flights to Boston from London which offer a flexible booking policy as well as other useful filters and features.

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?

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.

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Cheap flights from London to Boston from €347

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 6/5. 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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LEVEL flights from London to Boston

Our best LEVEL deals on London to Boston flight tickets

Scandinavian Airlines flights from London to Boston

Our best Scandinavian Airlines deals on London to Boston flight tickets

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Use the filters below to find and compare flights from London to Boston that are best for you.

See travel insights to Boston from

How to get the cheapest flight ticket from London to Boston

What is the typical price of a round-trip flight between London and Boston?

What is the cheapest month to fly to Boston?

The month of September is, on average, the cheapest month to fly to Boston from London, with most prices found around €449. The month of February is another great option to travel to Boston, with average flight prices from London averaging around €457.

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

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

Flying to Boston from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as €675 when looking at flights departing in the morning. Flights in the evening are often more expensive, with an average ticket price of €1,058.

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?

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

There are 2 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?

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

How have London to Boston flight prices changed over time?

As of January 2026, prices for London to Boston flights are approximately 102% more expensive when compared to flights at the same time last year.

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

United Airlines, Lufthansa, and LEVEL are the most popular carriers operating from London to Boston Logan Intl

How often are flights from London to Boston delayed?

Historically, on average around 8% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

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

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

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

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

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

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

The number of flights available between London and Boston is 30 per day as of January 2026. The most frequent departure time is 19:00, with 42% of daily flights leaving in the afternoon.

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

The number of flights available between London and Boston is 210 per week as of January 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

When to book flights from London to Boston

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

Fastest flight time

Direct flights

Airports in Boston

How far is London to Boston Logan Intl by plane?

When did momondo last update prices 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?

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

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

Travelling to a place near Boston?

Why use momondo?

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

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

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

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

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

Find better results for your trip to the United States

Airports servicing Massachusetts