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Cheap flights from London to Boston from $524

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 18/3. 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 round-trip train or bus tickets from London to Boston.

All round-trip flight deals to Boston

The cheapest plane tickets to Boston found on KAYAK recently.
13:45 - 21:20LHR-BOS
11h 35m1 stop
14:48 - 06:55BOS-LHR
11h 07m1 stop
Wed, 26 Mar - Mon, 31 Mar
06:30 - 18:42LHR-BOS
16h 12m2 stops
16:32 - 10:10BOS-LHR
12h 38m1 stop
$707United Airlines
Find Deal
Wed, 26 Mar - Mon, 31 Mar
13:45 - 20:20LHR-BOS
11h 35m1 stop
21:55 - 17:50BOS-LHR
14h 55m1 stop
$734SWISS
Find Deal
Wed, 26 Feb - Tue, 4 Mar
10:00 - 17:27LHR-BOS
12h 27m1 stop
13:55 - 06:20BOS-LHR
11h 25m1 stop
$736Austrian Airlines
Find Deal
Wed, 26 Feb - Thu, 6 Mar
18:30 - 14:30LHR-BOS
25h 00m1 stop
23:35 - 15:35BOS-LHR
11h 00m1 stop
$752TAP AIR PORTUGAL
Find Deal
Tue, 4 Mar - Sat, 29 Mar
19:25 - 17:12LHR-BOS
26h 47m2 stops
13:50 - 10:25BOS-LHR
15h 35m2 stops
$753Austrian Airlines
Find Deal
Mon, 13 Jan - Tue, 28 Jan
17:35 - 16:35LHR-BOS
28h 00m1 stop
20:10 - 07:55BOS-LHR
6h 45mdirect
$764Virgin Atlantic
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Mon, 13 Jan - Tue, 28 Jan
12:25 - 20:05LHR-BOS
12h 40m1 stop
23:35 - 17:45BOS-LHR
13h 10m1 stop
$793TAP AIR PORTUGAL
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Fri, 7 Mar - Sat, 29 Mar
11:30 - 20:35LHR-BOS
14h 05m1 stop
22:10 - 09:40BOS-LHR
6h 30mdirect
$808Virgin Atlantic
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Mon, 12 May - Mon, 13 Oct
19:30 - 20:20LHR-BOS
29h 50m2 stops
21:55 - 16:40BOS-LHR
13h 45m2 stops
$845SWISS
Find Deal
Mon, 13 Jan - Tue, 28 Jan
09:55 - 21:40LHR-BOS
15h 45m1 stop
Tue, 18 Mar
09:55 - 21:40LHR-BOS
16h 45m1 stop
Thu, 30 Jan
09:55 - 21:40LHR-BOS
15h 45m1 stop
Thu, 20 Mar
09:55 - 21:40LHR-BOS
16h 45m1 stop
Thu, 20 Feb
06:00 - 14:10LHR-BOS
13h 10m1 stop
$869TAP AIR PORTUGAL
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Tue, 17 Jun
08:25 - 10:56LHR-BOS
7h 31mdirect
$1,026JetBlue
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Wed, 7 May
08:25 - 11:23LHR-BOS
7h 58mdirect
$1,027JetBlue
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Mon, 17 Feb
12:15 - 17:45LHR-BOS
10h 30m1 stop
$2,585Icelandair
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Sat, 11 Jan
20:40 - 17:45LHR-BOS
26h 05m1 stop
$2,586Icelandair
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Fri, 10 Jan
13:40 - 20:05LHR-BOS
35h 25m2 stops
$3,264Azores Airlines
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Fri, 10 Jan
15:00 - 14:58LHR-BOS
28h 58m1 stop
19:30 - 08:30BOS-LHR
32h 00m1 stop
$870United Airlines
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Wed, 25 Dec - Mon, 30 Dec
06:40 - 15:50LHR-BOS
14h 10m1 stop
17:45 - 14:35BOS-LHR
15h 50m2 stops
$1,051Scandinavian Airlines
Find Deal
Tue, 24 Dec - Tue, 4 Feb
19:30 - 15:50LHR-BOS
25h 20m1 stop
17:45 - 09:20BOS-LHR
10h 35m1 stop
$1,096Scandinavian Airlines
Find Deal
Mon, 23 Dec - Wed, 5 Feb
19:30 - 15:50LHR-BOS
25h 20m1 stop
17:45 - 16:25BOS-LHR
17h 40m2 stops
$1,101Scandinavian Airlines
Find Deal
Mon, 23 Dec - Wed, 5 Feb
08:25 - 11:23LHR-BOS
7h 58mdirect
05:05 - 20:45BOS-LHR
10h 40m1 stop
$1,288JetBlue
Find Deal
Tue, 24 Dec - Wed, 5 Feb
08:25 - 11:23LHR-BOS
7h 58mdirect
05:35 - 20:45BOS-LHR
10h 10m1 stop
$1,328JetBlue
Find Deal
Wed, 25 Dec - Mon, 30 Dec
12:15 - 17:45LHR-BOS
10h 30m1 stop
20:00 - 19:30BOS-LHR
18h 30m1 stop
$1,681Icelandair
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Tue, 24 Dec - Sun, 5 Jan
08:50 - 11:45LHR-BOS
7h 55mdirect
19:25 - 07:05BOS-LHR
6h 40mdirect
$1,836KLM
Find Deal
Mon, 23 Dec - Wed, 5 Feb
17:25 - 20:20LHR-BOS
31h 55m2 stops
21:55 - 13:00BOS-LHR
10h 05m1 stop
$1,877SWISS
Find Deal
Mon, 23 Dec - Tue, 31 Dec
12:15 - 17:45LHR-BOS
10h 30m1 stop
20:00 - 19:30BOS-LHR
18h 30m1 stop
$2,048Icelandair
Find Deal
Tue, 24 Dec - Sat, 4 Jan
14:35 - 17:30LHR-BOS
7h 55mdirect
20:10 - 07:55BOS-LHR
6h 45mdirect
$776Virgin Atlantic
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Mon, 13 Jan - Tue, 28 Jan
10:35 - 13:20LHR-BOS
7h 45mdirect
23:00 - 09:30BOS-LHR
6h 30mdirect
$785British Airways
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Tue, 4 Mar - Tue, 25 Mar
10:35 - 13:25LHR-BOS
7h 50mdirect
20:20 - 07:50BOS-LHR
6h 30mdirect
$788Finnair
Find Deal
Mon, 13 Jan - Mon, 20 Jan
19:05 - 21:55LHR-BOS
7h 50mdirect
22:00 - 09:30BOS-LHR
6h 30mdirect
$790Finnair
Find Deal
Mon, 13 Jan - Mon, 20 Jan
08:50 - 11:56LHR-BOS
8h 06mdirect
19:23 - 07:05BOS-LHR
6h 42mdirect
$804KLM
Find Deal
Wed, 15 Jan - Wed, 22 Jan
14:35 - 17:30LHR-BOS
7h 55mdirect
20:10 - 07:55BOS-LHR
6h 45mdirect
$857Delta
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Wed, 8 Jan - Wed, 15 Jan
08:50 - 11:56LHR-BOS
8h 06mdirect
19:00 - 06:45BOS-LHR
6h 45mdirect
$859Delta
Find Deal
Thu, 9 Jan - Tue, 8 Apr
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
$931JetBlue
Find Deal
Thu, 16 Jan - Thu, 23 Jan
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
$955JetBlue
Find Deal
Tue, 28 Jan - Fri, 31 Jan
08:50 - 11:56LHR-BOS
8h 06mdirect
19:00 - 06:45BOS-LHR
6h 45mdirect
$982KLM
Find Deal
Thu, 9 Jan - Sun, 13 Apr

United Airlines flights from London to Boston

Our best United Airlines deals on London to Boston flight tickets
United Airlines
26 Mar
LHR06:30London Heathrow
16h 12m
2 stops
BOS18:42Boston Logan Intl
31 Mar
BOS16:45Boston Logan Intl
14h 00m
1 stop
LHR11:45London Heathrow
United Airlines
26 Mar
LHR06:30London Heathrow
16h 12m
2 stops
BOS18:42Boston Logan Intl
31 Mar
BOS16:32Boston Logan Intl
12h 38m
1 stop
LHR10:10London Heathrow
United Airlines
14 Jan
LHR06:30London Heathrow
17h 14m
2 stops
BOS18:44Boston Logan Intl
19 Jan
BOS19:28Boston Logan Intl
20h 07m
2 stops
LHR20:35London Heathrow

Virgin Atlantic flights from London to Boston

Our best Virgin Atlantic deals on London to Boston flight tickets
Virgin Atlantic
13 Jan
LHR17:35London Heathrow
28h 00m
1 stop
BOS16:35Boston Logan Intl
28 Jan
BOS20:10Boston Logan Intl
6h 45m
LHR07:55London Heathrow
Virgin Atlantic
12 May
LHR11:30London Heathrow
14h 05m
1 stop
BOS20:35Boston Logan Intl
13 Oct
BOS22:10Boston Logan Intl
6h 30m
LHR09:40London Heathrow
Virgin Atlantic
7 May
LHR11:30London Heathrow
14h 05m
1 stop
BOS20:35Boston Logan Intl
11 May
BOS20:45Boston Logan Intl
6h 50m
LHR08:35London 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 $841. The month of February is another great option to travel to Boston, with average flight prices from London averaging around $848.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $0. 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 Monday because tickets tend to average around $949. 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 at midday. momondo users have found flights departing from London to Boston at midday for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $912 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?

We recommend purchasing flights from London to Boston 60 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Boston for $1,009. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London for as low as $1,374 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 48% 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 December 2024, prices for London to Boston flights are approximately 2% 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

$524

Fastest flight time

7h 15m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from London in the past 72 hours is $524. The best return flight deal from London to Boston found on momondo in the last 72 hours is $702.
The fastest flight from London to Boston takes 7h 15m
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?

    There are 5260.9 km between London and Boston Logan Intl. A reasonable flight in good conditions will take 7h 15m.

  • 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?


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.

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