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

United Airlines, JetBlue, and British Airways are the most popular carriers operating from London to Boston Logan Intl

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

31 flights are operational daily from London to Boston as of November 2025. The most popular departure time for this route is 09:00, with 39% of flights per day taking off 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 220 per week as of November 2025. The most frequent departure day is Sun, with 16% of weekly flights leaving on this day.

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 travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$622 Cheap Flights from London to Boston in 2025/26

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

Prices are currently low for flights on this route. Typical prices usually range from $756 to $1,041. The lowest price recently found on this route was $712.

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12:25 - 20:10LHR-BOS

12h 45m1 stop

22:25 - 15:30BOS-LHR

12h 05m1 stop

$712TAP AIR PORTUGAL

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Sat, 6 Dec - Sat, 31 Jan

12:15 - 17:50LHR-BOS

10h 35m1 stop

19:50 - 10:50BOS-LHR

10h 00m1 stop

$788Icelandair

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Thu, 4 Dec - Mon, 15 Dec

12:15 - 17:50LHR-BOS

10h 35m1 stop

19:50 - 10:50BOS-LHR

10h 00m1 stop

$790Icelandair

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Tue, 25 Nov - Wed, 10 Dec

19:50 - 15:50LHR-BOS

25h 00m2 stops

17:35 - 16:25BOS-LHR

17h 50m2 stops

$802Scandinavian Airlines

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Mon, 19 Jan - Thu, 22 Jan

07:05 - 15:50LHR-BOS

13h 45m2 stops

17:35 - 16:25BOS-LHR

17h 50m2 stops

$804Scandinavian Airlines

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Tue, 9 Dec - Tue, 13 Jan

09:00 - 20:20LHR-BOS

16h 20m1 stop

18:40 - 20:35BOS-LHR

20h 55m1 stop

$822United Airlines

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Wed, 10 Dec - Tue, 23 Dec

11:10 - 18:35LHR-BOS

12h 25m1 stop

19:07 - 10:50BOS-LHR

10h 43m1 stop

$827Lufthansa

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Mon, 8 Dec - Mon, 15 Dec

09:00 - 20:00LHR-BOS

16h 00m1 stop

21:50 - 16:20BOS-LHR

13h 30m1 stop

$836United Airlines

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Mon, 12 Jan - Tue, 20 Jan

09:15 - 19:50LHR-BOS

15h 35m1 stop

07:30 - 19:00BOS-LHR

6h 30mdirect

$874British Airways

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Mon, 8 Dec - Mon, 15 Dec

06:45 - 20:30LHR-BOS

18h 45m2 stops

09:30 - 07:50BOS-LHR

17h 20m1 stop

$883British Airways

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Wed, 7 Jan - Thu, 22 Jan

Icelandair flights from London to Boston

Our best Icelandair deals on London to Boston flight tickets

Icelandair

4 Dec

LHR12:15London Heathrow

10h 35m

1 stop

BOS17:50Boston Logan Intl

17 Dec

BOS11:35Boston Logan Intl

18h 15m

1 stop

LHR10:50London Heathrow

$788

Find similar

Icelandair

12 Nov

LHR20:35London Heathrow

19h 00m

1 stop

BOS10:35Boston Logan Intl

16 Nov

BOS11:35Boston Logan Intl

18h 15m

1 stop

LHR10:50London Heathrow

$790

Find similar

Icelandair

5 Dec

LHR20:35London Heathrow

26h 15m

1 stop

BOS17:50Boston Logan Intl

17 Dec

BOS11:35Boston Logan Intl

18h 15m

1 stop

LHR10:50London Heathrow

$791

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Scandinavian Airlines flights from London to Boston

Our best Scandinavian Airlines deals on London to Boston flight tickets

Scandinavian Airlines

19 Jan

LHR19:50London Heathrow

25h 00m

2 stops

BOS15:50Boston Logan Intl

22 Jan

BOS17:35Boston Logan Intl

17h 50m

2 stops

LHR16:25London Heathrow

$802

Find similar

Scandinavian Airlines

9 Dec

LHR07:05London Heathrow

13h 45m

2 stops

BOS15:50Boston Logan Intl

13 Jan

BOS17:35Boston Logan Intl

17h 50m

2 stops

LHR16:25London Heathrow

$804

Find similar

Scandinavian Airlines

17 Jan

LHR17:00London Heathrow

27h 50m

1 stop

BOS15:50Boston Logan Intl

22 Jan

BOS17:35Boston Logan Intl

10h 45m

1 stop

LHR09:20London Heathrow

$810

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Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 6/12

12:25-20:10

1 stop12h 45m

Boston Logan Intl

Sat 31/1

22:25-15:30

1 stop12h 05m

$712

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/12

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Mon 15/12

19:50-10:50

1 stop10h 00m

$788

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 25/11

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Wed 10/12

19:50-10:50

1 stop10h 00m

$790

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 19/1

19:50-15:50

2 stops25h 00m

Boston Logan Intl

Thu 22/1

17:35-16:25

2 stops17h 50m

$802

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 9/12

07:05-15:50

2 stops13h 45m

Boston Logan Intl

Tue 13/1

17:35-16:25

2 stops17h 50m

$804

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 10/12

09:00-20:20

1 stop16h 20m

Boston Logan Intl

Tue 23/12

18:40-20:35

1 stop20h 55m

$822

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/12

11:10-18:35

1 stop12h 25m

Boston Logan Intl

Mon 15/12

19:07-10:50

1 stop10h 43m

$827

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 12/1

09:00-20:00

1 stop16h 00m

Boston Logan Intl

Tue 20/1

21:50-16:20

1 stop13h 30m

$836

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/12

09:15-19:50

1 stop15h 35m

Boston Logan Intl

Mon 15/12

07:30-19:00

Nonstop6h 30m

$874

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 7/1

06:45-20:30

2 stops18h 45m

Boston Logan Intl

Thu 22/1

09:30-07:50

1 stop17h 20m

$883

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

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?

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 $804. The month of February is another great option to travel to Boston, with average flight prices from London averaging around $813.

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

On average, the least expensive day to fly to Boston from London is on a Thursday. momondo users have found tickets for Thursday departures for as low as $951. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,378. 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?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from London to Boston in the afternoon for as low as $859. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to Boston, so prices are often more expensive at around $1,378 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 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $949 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 $877 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?

You could potentially save up to 38% 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 November 2025, prices for London to Boston flights are approximately 46% 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

Fastest flight time	7h 25m
Direct flights	Every day
Airports in Boston	1 airport

The fastest flight from London to Boston takes 7h 25m

Direct flights go from London to Boston every day.

There is 1 airport near Boston: Boston Logan Intl (BOS)

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How far is London to Boston Logan Intl by plane?
There are 5260.9 km between London and Boston Logan Intl. A reasonable flight in good conditions will take 7h 56m.
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 travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
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 25.08% of all bookings. The subsequent popular models are Airbus A330-900neo at 17.70%, Boeing 777 at 16.54%, and Boeing 787-9 Dreamliner at 9.71%.

Cambridge

Westford

Old Orchard Beach

Salem

Chelsea

Seekonk

Sturbridge

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?

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?

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 London to Boston.

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

Yes momondo offers price alerts on flights to Boston from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when 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.

Start using Trips

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Thu 4/12

Thu 11/12

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Cheap flights from London to Boston from $622

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 31/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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Find the cheapest flights from London to Boston

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Icelandair flights from London to Boston

Our best Icelandair 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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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?

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?

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?

You could potentially save up to 38% 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 November 2025, prices for London to Boston flights are approximately 46% 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, JetBlue, and British Airways are the most popular carriers operating from London to Boston Logan Intl

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

31 flights are operational daily from London to Boston as of November 2025. The most popular departure time for this route is 09:00, with 39% of flights per day taking off 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 220 per week as of November 2025. The most frequent departure day is Sun, with 16% 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

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