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Cheap flights from London Heathrow Airport to Boston from $413

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 2/7. 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 Heathrow Airport to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
1:05 pm - 10:10 pmLHR-BOS
14h 05m1 stop
Icelandair Logo
8:50 pm - 11:55 amBOS-LHR
10h 05m1 stop
$458Icelandair
Find Deal
Thu, Apr 30 - Sun, May 10
TAP AIR PORTUGAL Logo
6:00 am - 8:10 pmLHR-BOS
19h 10m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 5:45 pmBOS-LHR
14h 15m2 stops
$463TAP AIR PORTUGAL
Find Deal
Sun, Feb 8 - Mon, Apr 20
TAP AIR PORTUGAL Logo
7:55 pm - 2:35 pmLHR-BOS
23h 40m1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 11:25 amBOS-LHR
12h 20m1 stop
$465TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Sat, Jan 31
TAP AIR PORTUGAL Logo
6:00 am - 8:10 pmLHR-BOS
19h 10m1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 12:40 pmBOS-LHR
13h 35m1 stop
$466TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Sat, Jan 31
Icelandair Logo
1:05 pm - 10:10 pmLHR-BOS
14h 05m1 stop
Icelandair Logo
11:30 pm - 8:20 pmBOS-LHR
15h 50m1 stop
$467Icelandair
Find Deal
Thu, Apr 30 - Sat, May 9
TAP AIR PORTUGAL Logo
12:25 pm - 8:10 pmLHR-BOS
12h 45m1 stop
TAP AIR PORTUGAL Logo
11:45 pm - 10:40 pmBOS-LHR
18h 55m1 stop
$469TAP AIR PORTUGAL
Find Deal
Fri, Mar 6 - Fri, Mar 20
TAP AIR PORTUGAL Logo
8:15 am - 8:10 pmLHR-BOS
16h 55m1 stop
TAP AIR PORTUGAL Logo
10:45 pm - 9:35 pmBOS-LHR
17h 50m1 stop
$470TAP AIR PORTUGAL
Find Deal
Thu, Dec 11 - Thu, Jan 8
TAP AIR PORTUGAL Logo
7:55 pm - 2:35 pmLHR-BOS
23h 40m1 stop
TAP AIR PORTUGAL Logo
10:45 pm - 5:30 pmBOS-LHR
13h 45m1 stop
$471TAP AIR PORTUGAL
Find Deal
Thu, Dec 11 - Thu, Jan 8
Icelandair Logo
8:35 pm - 5:50 pmLHR-BOS
26h 15m1 stop
Icelandair Logo
7:50 pm - 10:50 amBOS-LHR
10h 00m1 stop
$472Icelandair
Find Deal
Mon, Dec 8 - Mon, Dec 15
TAP AIR PORTUGAL Logo
12:25 pm - 9:10 pmLHR-BOS
12h 45m1 stop
TAP AIR PORTUGAL Logo
11:45 pm - 6:55 pmBOS-LHR
15h 10m1 stop
$474TAP AIR PORTUGAL
Find Deal
Fri, Mar 13 - Fri, Mar 20

Icelandair flights from London Heathrow Airport to Boston

Our best Icelandair deals on London Heathrow Airport to Boston flight tickets
Icelandair
Apr 30
LHR1:05 pmLondon Heathrow
14h 05m
1 stop
BOS10:10 pmBoston Logan Intl
May 10
BOS8:50 pmBoston Logan Intl
10h 05m
1 stop
LHR11:55 amLondon Heathrow
$458
Find similar
Icelandair
Apr 30
LHR1:05 pmLondon Heathrow
14h 05m
1 stop
BOS10:10 pmBoston Logan Intl
May 9
BOS11:30 pmBoston Logan Intl
15h 50m
1 stop
LHR8:20 pmLondon Heathrow
$467
Find similar
Icelandair
Dec 8
LHR8:35 pmLondon Heathrow
26h 15m
1 stop
BOS5:50 pmBoston Logan Intl
Dec 15
BOS7:50 pmBoston Logan Intl
10h 00m
1 stop
LHR10:50 amLondon Heathrow
$472
Find similar

Scandinavian Airlines flights from London Heathrow Airport to Boston

Our best Scandinavian Airlines deals on London Heathrow Airport to Boston flight tickets
Scandinavian Airlines
Feb 10
LHR7:05 amLondon Heathrow
13h 45m
2 stops
BOS3:50 pmBoston Logan Intl
Mar 3
BOS5:35 pmBoston Logan Intl
16h 00m
2 stops
LHR2:35 pmLondon Heathrow
$505
Find similar
Scandinavian Airlines
Jan 13
LHR6:40 amLondon Heathrow
14h 10m
1 stop
BOS3:50 pmBoston Logan Intl
Jan 18
BOS5:35 pmBoston Logan Intl
17h 50m
2 stops
LHR4:25 pmLondon Heathrow
$518
Find similar
Scandinavian Airlines
Nov 24
LHR6:40 amLondon Heathrow
14h 10m
2 stops
BOS3:50 pmBoston Logan Intl
Nov 28
BOS5:35 pmBoston Logan Intl
10h 45m
1 stop
LHR9:20 amLondon Heathrow
$577
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/30

1:05 pm-10:10 pm

1 stop14h 05m

Boston Logan Intl

Sun 5/10

8:50 pm-11:55 am

1 stop10h 05m

$458

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 2/8

6:00 am-8:10 pm

1 stop19h 10m

Boston Logan Intl

Mon 4/20

10:30 pm-5:45 pm

2 stops14h 15m

$463

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 12/6

7:55 pm-2:35 pm

1 stop23h 40m

Boston Logan Intl

Sat 1/31

6:05 pm-11:25 am

1 stop12h 20m

$465

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 12/6

6:00 am-8:10 pm

1 stop19h 10m

Boston Logan Intl

Sat 1/31

6:05 pm-12:40 pm

1 stop13h 35m

$466

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/30

1:05 pm-10:10 pm

1 stop14h 05m

Boston Logan Intl

Sat 5/9

11:30 pm-8:20 pm

1 stop15h 50m

$467

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 3/6

12:25 pm-8:10 pm

1 stop12h 45m

Boston Logan Intl

Fri 3/20

11:45 pm-10:40 pm

1 stop18h 55m

$469

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 12/11

8:15 am-8:10 pm

1 stop16h 55m

Boston Logan Intl

Thu 1/8

10:45 pm-9:35 pm

1 stop17h 50m

$470

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 12/11

7:55 pm-2:35 pm

1 stop23h 40m

Boston Logan Intl

Thu 1/8

10:45 pm-5:30 pm

1 stop13h 45m

$471

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 12/8

8:35 pm-5:50 pm

1 stop26h 15m

Boston Logan Intl

Mon 12/15

7:50 pm-10:50 am

1 stop10h 00m

$472

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 3/13

12:25 pm-9:10 pm

1 stop12h 45m

Boston Logan Intl

Fri 3/20

11:45 pm-6:55 pm

1 stop15h 10m

$474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

In general, February is the cheapest month to fly from London Heathrow Airport to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $537. If you aren’t able to travel during the month of February, then book flights to Boston from London Heathrow Airport during September instead. Flights to Boston in September, while not as cheap as those in February, still average around $542.

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 Wednesday when prices can be found for as low as $687. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $794.

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 Heathrow Airport to Boston in the afternoon for as low as $714. 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 evening is when there is more demand to fly to Boston, so prices are often more expensive at around $757 per ticket.

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 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $620 when searching 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 $580 on momondo.

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

There are 4 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.

Can stopping save me money on London Heathrow Airport to Boston flights?

You could potentially save up to 10% on your flight if you consider stops on a London Heathrow Airport to Boston flight.

How have London Heathrow Airport to Boston flight prices changed over time?

As of November 2025, prices for London Heathrow Airport to Boston flights are approximately 12% 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 round-trip 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

$521

Fastest flight time

7h 25m

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 $521. The best round-trip flight deal from London Heathrow Airport to Boston found on momondo in the last 72 hours is $686.
The fastest flight from London Heathrow Airport to Boston takes 7h 25m
Direct flights go from London Heathrow Airport to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)
Search flight deals

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

    Boston Logan Intl is 3256.0 mi away from London Heathrow. Flights usually cover this in 10h 35m, depending on flying conditions and air traffic around both airports.

  • 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 many operators does momondo search for flights from London Heathrow Airport to Boston Logan Intl Airport?

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

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Boston?

  • What is the most popular airline from London Heathrow Airport to Boston?

Best airlines flying from London Heathrow Airport to Boston

Compare and see reviews for airlines that fly from London Heathrow Airport to Boston with momondo
Airline
Rating
Free Cancellation
Price
FinnairPriceFrom $404Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
Aer LingusPriceFrom $412Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights
IcelandairPriceFrom $445Free CancellationRating
7.1
578 reviews
Search Icelandair flights
JetBluePriceFrom $478Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
British AirwaysPriceFrom $480Free CancellationRating
6.7
7,518 reviews
Search British Airways flights
DeltaPriceFrom $481Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $486Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
IberiaPriceFrom $539Free CancellationRating
7.0
3,012 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $551Free CancellationRating
7.5
673 reviews
Search Virgin Atlantic flights

  • Delta Flights From London Heathrow Airport to Boston

    Delta flies from London Heathrow Airport to Boston around 15 times per week, with 8,008 momondo users rating the airline 7.9/10. The cheapest Delta deal from London Heathrow Airport to Boston in the last 72 hours was $481 (round-trip), much lower than the average airfare cost of $739 for Delta flights on this route.

  • Finnair Flights From London Heathrow Airport to Boston

    Finnair (7.6/10 from 1,335 reviews) operates around 24 flights from London Heathrow Airport to Boston in any given week. The average Finnair airfare for this route is around $676, with deals from around $404 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Boston flight searches in the last 72 hours.

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Plymouth
Kennebunkport
Cambridge
South Yarmouth
Narragansett
Nashua
Gloucester
Falmouth
Laconia
Brockton
Concord
Everett
Sturbridge
Chatham

Why use momondo?

Why should I use momondo to find a flight deal from London to Boston?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Boston for you.

Can I find flights from London to Boston with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Boston from London with this policy.

How can momondo help me find flights from London to Boston?

momondo helps you find the best flight between London and Boston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Boston from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Boston trip

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