Flights from Boston to London Heathrow

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Our cheapest offers for flights from Boston to London Heathrow

Here you can compare cheap flights from Boston (BOS) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (LIS)
TP0218, TP1366
23h 30min
Return
03/07/25
1 Stopover (LIS)
TP1363, TP0217
13h 30min
TAP Air Portugal
$463
Best option
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (KEF)
FI0630, FI0450
09h 50min
Return
03/07/25
1 Stopover (KEF)
FI0451, FI0631
10h 30min
Icelandair ?
$502
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (LIS)
TP0218, TP1366
23h 30min
Return
03/07/25
1 Stopover (LIS)
TP1363, TP0217
13h 30min
TAP Air Portugal
$474
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (KEF)
FI0630, FI0450
09h 50min
Return
03/07/25
1 Stopover (KEF)
FI0455, FI0635
18h 55min
Icelandair ?
$476
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (KEF)
FI0630, FI0454
18h 30min
Return
03/07/25
1 Stopover (KEF)
FI0455, FI0635
18h 55min
Icelandair ?
$487
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (KEF)
FI0630, FI0450
09h 50min
Return
03/07/25
1 Stopover (KEF)
FI0455, FI0635
18h 55min
Icelandair ?
$491
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (KEF)
FI0630, FI0454
18h 30min
Return
03/07/25
1 Stopover (KEF)
FI0451, FI0631
10h 30min
Icelandair
$500
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (KEF)
FI0630, FI0454
18h 30min
Return
03/07/25
1 Stopover (KEF)
FI0455, FI0635
18h 55min
Icelandair ?
$501
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (LIS)
TP0218, TP1352
13h 30min
Return
03/07/25
1 Stopover (LIS)
TP1363, TP0217
13h 30min
TAP Air Portugal ?
$555
Boston
London Heathrow
Outbound
03/02/25
1 Stopover (ZRH)
LX0053, LX0332
10h 05min
Return
03/07/25
1 Stopover (ZRH)
LX0333, LX0052
11h 30min
Swiss International Air Lines ?
$594
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Boston to London Heathrow

Favorite airline: Icelandair
The most popular airline for flights from Boston to London Heathrow is Icelandair.
Icelandair
28 %
United Airlines
17 %
Air Canada
16 %
Direct flights are more expensive
Compared to direct flights, flights with a stopover on this route are on average 30 % cheaper.
non stop flight
1 stop
2 stops
06h 50min
18h 20min
21h 30min
US$564
US$433
US$583
Favourite connection: via Reykjavik-Keflavik
The most popular route is via Reykjavik-Keflavik and is booked by 35 % of all travelers.
Route
bookings
1 stopover Reykjavik-Keflavik International
18h 20min, from US$433
35 %
1 stopover Montréal-Pierre Elliott Trudeau International Airport
30h 25min, from US$537
26 %
Direct flights
06h 50min, from US$564
20 %

Important flight information

Flight information: Boston - London Heathrow

Roundtrip from US$462.05
Flight duration min. 06:20 / max. 06:42
Return flight duration min. 07:40/ max. 07:58
Distance 5245 km
Flights per week 42
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport London Heathrow (LHR)
Destination country Flights to United Kingdom
Alternative routes to United Kingdom
Alternative flights to London Heathrow
Flight destinations with a similar price
Flight destinations with a similar price
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* Prices may vary, please check the travel details given by the online travel agency before booking. Prices include taxes.