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Cheap flights from London Heathrow Airport to Boston from €355

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 Heathrow Airport to Boston departing on 7/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from London Heathrow Airport to Boston

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Boston.
United Airlines Logo
13:45 - 19:55LHR-BOS
11h 10m1 stop
United Airlines Logo
15:20 - 06:30BOS-LHR
10h 10m1 stop
€408United Airlines
Find Deal
Wed, 7 May - Wed, 14 May
United Airlines Logo
08:40 - 15:25LHR-BOS
11h 45m1 stop
United Airlines Logo
15:20 - 06:30BOS-LHR
10h 10m1 stop
€410United Airlines
Find Deal
Wed, 7 May - Tue, 13 May
SWISS Logo
06:00 - 15:25LHR-BOS
14h 25m1 stop
SWISS Logo
21:40 - 13:00BOS-LHR
10h 20m1 stop
€413SWISS
Find Deal
Mon, 5 May - Mon, 12 May
Austrian Airlines Logo
19:30 - 13:50LHR-BOS
23h 20m1 stop
Austrian Airlines Logo
11:07 - 05:55BOS-LHR
13h 48m1 stop
€413Austrian Airlines
Find Deal
Thu, 8 May - Thu, 15 May
Austrian Airlines Logo
19:30 - 17:21LHR-BOS
26h 51m2 stops
Austrian Airlines Logo
11:07 - 05:55BOS-LHR
13h 48m1 stop
€418Austrian Airlines
Find Deal
Thu, 8 May - Thu, 15 May
 Logo
08:40 - 15:25LHR-BOS
11h 45m1 stop
 Logo
14:40 - 06:55BOS-LHR
11h 15m1 stop
€424
Find Deal
Fri, 12 Sep - Wed, 24 Sep
 Logo
08:40 - 15:25LHR-BOS
11h 45m1 stop
 Logo
19:12 - 10:40BOS-LHR
10h 28m1 stop
€425
Find Deal
Fri, 12 Sep - Tue, 23 Sep
Lufthansa Logo
10:50 - 17:40LHR-BOS
11h 50m1 stop
Lufthansa Logo
19:14 - 10:40BOS-LHR
10h 26m1 stop
€428Lufthansa
Find Deal
Wed, 30 Apr - Tue, 13 May
Lufthansa Logo
09:30 - 15:40LHR-BOS
11h 10m1 stop
Lufthansa Logo
14:49 - 06:55BOS-LHR
11h 06m1 stop
€428Lufthansa
Find Deal
Mon, 5 May - Tue, 13 May
SWISS Logo
06:00 - 19:55LHR-BOS
18h 55m1 stop
SWISS Logo
17:05 - 19:20BOS-LHR
21h 15m1 stop
€442SWISS
Find Deal
Sun, 7 Sep - Sun, 14 Sep

United Airlines flights from London Heathrow Airport to Boston

Our best United Airlines deals on London Heathrow Airport to Boston flight tickets
United Airlines
7 May
LHR13:45London Heathrow
11h 10m
1 stop
BOS19:55Boston Logan Intl
14 May
BOS15:20Boston Logan Intl
10h 10m
1 stop
LHR06:30London Heathrow
United Airlines
7 May
LHR08:40London Heathrow
11h 45m
1 stop
BOS15:25Boston Logan Intl
13 May
BOS15:20Boston Logan Intl
10h 10m
1 stop
LHR06:30London Heathrow
United Airlines
8 May
LHR08:40London Heathrow
11h 45m
1 stop
BOS15:25Boston Logan Intl
15 May
BOS15:05Boston Logan Intl
12h 15m
1 stop
LHR08:20London Heathrow

Finnair flights from London Heathrow Airport to Boston

Our best Finnair deals on London Heathrow Airport to Boston flight tickets
Finnair
13 May
LHR17:00London Heathrow
10h 49m
1 stop
BOS22:49Boston Logan Intl
29 May
BOS07:25Boston Logan Intl
6h 30m
LHR18:55London Heathrow
Finnair
10 May
LHR14:40London Heathrow
7h 25m
BOS17:05Boston Logan Intl
11 May
BOS19:50Boston Logan Intl
20h 50m
1 stop
LHR21:40London Heathrow
Finnair
3 Sept
LHR20:10London Heathrow
7h 35m
BOS22:45Boston Logan Intl
12 Sept
BOS17:48Boston Logan Intl
12h 17m
1 stop
LHR11:05London Heathrow

See travel insights to Boston from

How to get the cheapest flight ticket from London Heathrow Airport 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?

The month of February is, on average, the cheapest month to fly to Boston from London Heathrow Airport, with most prices found around €472. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around €480.

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

The cheapest day to depart from London Heathrow Airport to Boston is on a Monday when prices can be found for as low as €0. Flights from London Heathrow Airport to Boston on a Tuesday will generally be more expensive and average around €798. 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 Heathrow Airport at midday is the least expensive time of day to depart. momondo users have found prices as low as €0 when looking at flights departing at midday. Flights in the morning are often more expensive, with an average ticket price of €596.

What is the cheapest London Heathrow to Boston Logan Intl flight route?

Fly from London Heathrow to Boston Logan Intl for the best London Heathrow - 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 Heathrow Airport when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around €564 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London Heathrow Airport for as low as €513 on momondo.

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

There are 2 cabin classes available to choose from on London Heathrow 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 Heathrow Airport to Boston flight prices changed over time?

As of April 2025, prices for London Heathrow Airport to Boston flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Boston (LHR to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Boston

Best price found

€355

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from London Heathrow Airport in the past 72 hours is €355. The best return flight deal from London Heathrow Airport to Boston found on momondo in the last 72 hours is €408.
The fastest flight from London Heathrow Airport to Boston takes 7h 20m
Direct flights go from London Heathrow Airport to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • How far is London Heathrow to Boston Logan Intl by plane?

    The straight-line distance from London Heathrow to Boston Logan Intl is 5240.1 km. By plane, this route typically takes 7h 20m.

  • When did momondo last update prices for flights from London Heathrow Airport to Boston Logan Intl Airport?

    Prices for flights from London Heathrow Airport to Boston Logan Intl Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport 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 Heathrow Airport to Boston?


Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Quincy
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?

Once you have performed a search for London to Boston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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.


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