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Cheap flights from London Heathrow Airport to Boston from €378

This is the cheapest return 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 1/5. 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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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.
10:50 - 17:40LHR-BOS
11h 50m1 stop
20:05 - 12:50BOS-LHR
11h 45m1 stop
€378Lufthansa
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Thu, 1 May - Sat, 17 May
19:30 - 13:50LHR-BOS
23h 20m1 stop
17:10 - 21:40BOS-LHR
23h 30m1 stop
€389Austrian Airlines
Find Deal
Tue, 22 Apr - Thu, 1 May
13:45 - 19:55LHR-BOS
11h 10m1 stop
17:05 - 11:25BOS-LHR
13h 20m1 stop
€392SWISS
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Thu, 24 Apr - Mon, 5 May
13:45 - 19:55LHR-BOS
11h 10m1 stop
17:50 - 08:40BOS-LHR
9h 50m1 stop
€395
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Thu, 24 Apr - Sun, 4 May
18:40 - 15:25LHR-BOS
25h 45m1 stop
17:05 - 11:25BOS-LHR
13h 20m1 stop
€398SWISS
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Fri, 9 May - Tue, 13 May
08:40 - 15:25LHR-BOS
11h 45m1 stop
22:00 - 14:40BOS-LHR
11h 40m1 stop
€406
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Mon, 12 May - Mon, 19 May
08:45 - 19:55LHR-BOS
16h 10m1 stop
12:29 - 06:55BOS-LHR
13h 26m1 stop
€422United Airlines
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Tue, 13 May - Thu, 22 May
06:50 - 17:24LHR-BOS
15h 34m2 stops
12:30 - 06:55BOS-LHR
13h 25m1 stop
€434United Airlines
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Tue, 22 Apr - Thu, 1 May
08:50 - 14:40LHR-BOS
10h 50m1 stop
20:05 - 07:50BOS-LHR
6h 45mdirect
€441British Airways
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Mon, 12 May - Mon, 19 May
13:25 - 18:45LHR-BOS
10h 20m1 stop
20:05 - 07:50BOS-LHR
6h 45mdirect
€443British Airways
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Tue, 6 May - Tue, 20 May

Lufthansa flights from London Heathrow Airport to Boston

Our best Lufthansa deals on London Heathrow Airport to Boston flight tickets
Lufthansa
1 May
LHR10:50London Heathrow
11h 50m
1 stop
BOS17:40Boston Logan Intl
17 May
BOS20:05Boston Logan Intl
11h 45m
1 stop
LHR12:50London Heathrow
Lufthansa
12 Sept
LHR13:30London Heathrow
11h 40m
1 stop
BOS20:10Boston Logan Intl
24 Sept
BOS19:35Boston Logan Intl
10h 05m
1 stop
LHR10:40London Heathrow
Lufthansa
22 Apr
LHR07:30London Heathrow
13h 30m
1 stop
BOS16:00Boston Logan Intl
1 May
BOS22:00Boston Logan Intl
13h 40m
1 stop
LHR16:40London Heathrow

Austrian Airlines flights from London Heathrow Airport to Boston

Our best Austrian Airlines deals on London Heathrow Airport to Boston flight tickets
Austrian Airlines
22 Apr
LHR19:30London Heathrow
23h 20m
1 stop
BOS13:50Boston Logan Intl
1 May
BOS17:10Boston Logan Intl
23h 30m
1 stop
LHR21:40London Heathrow
Austrian Airlines
13 May
LHR15:05London Heathrow
27h 45m
1 stop
BOS13:50Boston Logan Intl
20 May
BOS17:10Boston Logan Intl
23h 30m
1 stop
LHR21:40London Heathrow
Austrian Airlines
13 May
LHR15:05London Heathrow
27h 45m
1 stop
BOS13:50Boston Logan Intl
20 May
BOS17:10Boston Logan Intl
20h 30m
1 stop
LHR18:40London 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 typical price of a round-trip flight between London Heathrow Airport and Boston?

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 €497. The month of September is another great option to travel to Boston, with average flight prices from London Heathrow Airport averaging around €505.

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 €710. 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 €627.

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 €592 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 €555 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 March 2025, prices for London Heathrow Airport to Boston flights are approximately 13% 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

€603

Fastest flight time

7h 15m

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 €603. The best return flight deal from London Heathrow Airport to Boston found on momondo in the last 72 hours is €378.
The fastest flight from London Heathrow Airport to Boston takes 7h 15m
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 15m.

  • 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
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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