Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London to Boston from $480

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 27/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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 return train or bus tickets from London to Boston.

All return flight deals from London to Boston

The cheapest plane tickets from London to Boston found on KAYAK recently.
09:00 - 17:35LHR-BOS
12h 35m1 stop
21:10 - 07:55BOS-LHR
6h 45mdirect
$698Virgin Atlantic
Find Deal
Tue, 11 Mar - Thu, 20 Mar
06:30 - 12:12LHR-BOS
34h 42m2 stops
19:28 - 20:35BOS-LHR
20h 07m2 stops
$702United Airlines
Find Deal
Wed, 5 Feb - Sun, 9 Feb
12:15 - 18:45LHR-BOS
10h 30m1 stop
21:00 - 19:30BOS-LHR
18h 30m1 stop
$709Icelandair
Find Deal
Tue, 18 Mar - Thu, 27 Mar
18:40 - 20:20LHR-BOS
30h 40m1 stop
21:55 - 17:50BOS-LHR
14h 55m1 stop
$712SWISS
Find Deal
Mon, 3 Feb - Mon, 10 Feb
13:45 - 21:20LHR-BOS
11h 35m1 stop
19:32 - 10:40BOS-LHR
10h 08m1 stop
Wed, 26 Mar - Mon, 31 Mar
20:05 - 21:20LHR-BOS
29h 15m1 stop
22:55 - 16:20BOS-LHR
13h 25m1 stop
$717SWISS
Find Deal
Sun, 9 Mar - Tue, 18 Mar
08:45 - 15:25LHR-BOS
11h 40m1 stop
19:14 - 10:40BOS-LHR
10h 26m1 stop
Tue, 6 May - Tue, 13 May
10:25 - 13:50LHR-BOS
32h 25m1 stop
12:45 - 06:55BOS-LHR
13h 10m1 stop
$723Austrian Airlines
Find Deal
Sun, 20 Apr - Wed, 30 Apr
06:00 - 18:34LHR-BOS
16h 34m2 stops
13:55 - 06:20BOS-LHR
12h 25m1 stop
$731Austrian Airlines
Find Deal
Tue, 18 Mar - Thu, 27 Mar
12:15 - 18:45LHR-BOS
10h 30m1 stop
21:00 - 19:30BOS-LHR
18h 30m1 stop
$773Icelandair
Find Deal
Thu, 13 Mar - Sun, 23 Mar
09:55 - 21:40LHR-BOS
16h 45m1 stop
Thu, 27 Feb
09:55 - 21:40LHR-BOS
16h 45m1 stop
Tue, 4 Feb
18:30 - 14:30LHR-BOS
25h 00m1 stop
$850TAP AIR PORTUGAL
Find Deal
Tue, 4 Feb
06:00 - 14:15LHR-BOS
13h 15m1 stop
$851TAP AIR PORTUGAL
Find Deal
Tue, 15 Apr
18:30 - 14:30LHR-BOS
25h 00m1 stop
$853TAP AIR PORTUGAL
Find Deal
Mon, 27 Jan
16:35 - 14:15LHR-BOS
26h 40m1 stop
$856TAP AIR PORTUGAL
Find Deal
Sun, 20 Apr
20:40 - 18:45LHR-BOS
26h 05m1 stop
$933Icelandair
Find Deal
Sun, 23 Mar
08:25 - 10:56LHR-BOS
7h 31mdirect
$995JetBlue
Find Deal
Mon, 21 Apr
08:25 - 10:56LHR-BOS
7h 31mdirect
$998JetBlue
Find Deal
Wed, 23 Apr
10:00 - 16:50LHR-BOS
11h 50m1 stop
$1,272Aer Lingus
Find Deal
Sat, 22 Feb
08:25 - 11:23LHR-BOS
7h 58mdirect
22:55 - 17:30BOS-LHR
13h 35m1 stop
$2,190TAP AIR PORTUGAL
Find Deal
Sun, 26 Jan - Fri, 31 Jan
19:30 - 17:12LHR-BOS
26h 42m2 stops
16:40 - 12:45BOS-LHR
15h 05m2 stops
$2,474
Find Deal
Mon, 27 Jan - Wed, 5 Feb
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
$2,666JetBlue
Find Deal
Sun, 26 Jan - Tue, 28 Jan
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
$2,725JetBlue
Find Deal
Fri, 24 Jan - Sat, 25 Jan
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
$2,816TAP AIR PORTUGAL
Find Deal
Sun, 26 Jan - Tue, 28 Jan
08:50 - 11:56LHR-BOS
8h 06mdirect
11:10 - 06:50BOS-LHR
14h 40m1 stop
$11,944Delta
Find Deal
Mon, 27 Jan - Fri, 31 Jan
15:50 - 10:05LHR-BOS
23h 15m1 stop
19:23 - 07:05BOS-LHR
6h 42mdirect
$12,000Delta
Find Deal
Mon, 27 Jan - Fri, 31 Jan
20:15 - 23:59LHR-BOS
32h 44m3 stops
05:45 - 06:35BOS-LHR
43h 50m2 stops
$15,293Ethiopian Air
Find Deal
Fri, 24 Jan - Tue, 28 Jan
20:15 - 23:59LHR-BOS
32h 44m3 stops
05:45 - 06:35BOS-LHR
43h 50m2 stops
$15,342Ethiopian Air
Find Deal
Fri, 24 Jan - Tue, 28 Jan
08:50 - 11:56LHR-BOS
8h 06mdirect
19:23 - 07:05BOS-LHR
6h 42mdirect
$16,762KLM
Find Deal
Mon, 27 Jan - Fri, 31 Jan
14:35 - 18:30LHR-BOS
7h 55mdirect
21:10 - 07:55BOS-LHR
6h 45mdirect
$739Virgin Atlantic
Find Deal
Tue, 11 Mar - Thu, 20 Mar
08:50 - 11:57LHR-BOS
8h 07mdirect
19:25 - 07:05BOS-LHR
6h 40mdirect
$758Delta
Find Deal
Mon, 3 Feb - Tue, 11 Feb
19:05 - 22:55LHR-BOS
7h 50mdirect
19:25 - 05:55BOS-LHR
6h 30mdirect
$760British Airways
Find Deal
Tue, 18 Mar - Thu, 27 Mar
17:00 - 19:35LHR-BOS
7h 35mdirect
18:25 - 05:55BOS-LHR
6h 30mdirect
$770Finnair
Find Deal
Mon, 3 Feb - Mon, 10 Feb
10:35 - 13:20LHR-BOS
7h 45mdirect
21:15 - 07:50BOS-LHR
6h 35mdirect
$818Finnair
Find Deal
Tue, 4 Mar - Wed, 12 Mar
10:25 - 13:10LHR-BOS
7h 45mdirect
19:00 - 06:45BOS-LHR
6h 45mdirect
$827KLM
Find Deal
Thu, 1 May - Mon, 12 May
17:00 - 19:35LHR-BOS
7h 35mdirect
19:40 - 07:20BOS-LHR
6h 40mdirect
$891British Airways
Find Deal
Sat, 1 Mar - Fri, 23 May
08:25 - 11:23LHR-BOS
7h 58mdirect
18:10 - 05:55BOS-LHR
6h 45mdirect
$976JetBlue
Find Deal
Sun, 2 Feb - Sat, 8 Feb
08:25 - 10:56LHR-BOS
7h 31mdirect
18:26 - 06:30BOS-LHR
7h 04mdirect
$1,021JetBlue
Find Deal
Thu, 17 Apr - Sun, 27 Apr
08:50 - 12:35LHR-BOS
7h 45mdirect
20:20 - 07:05BOS-LHR
6h 45mdirect
$1,330KLM
Find Deal
Tue, 18 Mar - Sat, 22 Mar

Icelandair flights from London to Boston

Our best Icelandair deals on London to Boston flight tickets
Icelandair
18 Mar
LHR12:15London Heathrow
10h 30m
1 stop
BOS18:45Boston Logan Intl
27 Mar
BOS21:00Boston Logan Intl
18h 30m
1 stop
LHR19:30London Heathrow
Icelandair
13 Mar
LHR12:15London Heathrow
10h 30m
1 stop
BOS18:45Boston Logan Intl
23 Mar
BOS21:00Boston Logan Intl
18h 30m
1 stop
LHR19:30London Heathrow
Icelandair
21 May
LHR13:05London Heathrow
10h 45m
1 stop
BOS18:50Boston Logan Intl
10 June
BOS23:35Boston Logan Intl
15h 45m
1 stop
LHR20:20London Heathrow

KLM flights from London to Boston

Our best KLM deals on London to Boston flight tickets
KLM
4 Feb
LHR06:30London Heathrow
12h 05m
1 stop
BOS13:35Boston Logan Intl
11 Feb
BOS19:25Boston Logan Intl
6h 40m
LHR07:05London Heathrow
KLM
17 Feb
LHR06:30London Heathrow
12h 05m
1 stop
BOS13:35Boston Logan Intl
24 Feb
BOS19:25Boston Logan Intl
6h 40m
LHR07:05London Heathrow
KLM
5 Feb
LHR06:30London Heathrow
12h 05m
1 stop
BOS13:35Boston Logan Intl
9 Feb
BOS19:25Boston Logan Intl
6h 40m
LHR07:05London 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 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 $837. The month of February is another great option to travel to Boston, with average flight prices from London averaging around $843.

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 $948. 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 $911 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 23 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $1,011 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London for as low as $922 on momondo.

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

There are 3 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.

How have London to Boston flight prices changed over time?

As of January 2025, 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

$480

Fastest flight time

7h 31m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from London in the past 72 hours is $480. The best return flight deal from London to Boston found on momondo in the last 72 hours is $698.
The fastest flight from London to Boston takes 7h 31m
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 35m.

  • 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?


Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Somerville
Westford
Waltham
Chelsea
Seekonk
Brookline

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Mon 27/1
Mon 3/2
Email me momondo's favourite deals

Find better results for your trip to the United States

Airports servicing Massachusetts