Flights from London Heathrow to Boston

Our cheapest offers for flights from London Heathrow to Boston

Here you can compare cheap flights from London Heathrow (LHR) to Boston (BOS) 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 Boston. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Boston
Outbound
02/05/25
1 Stopover (ZRH)
LX0345, LX0052
18h 55min
Return
19/05/25
1 Stopover (EWR)
OS7738, SN9039
10h 45min
Swiss International Air Lines ?
£402
Best option
London Heathrow
Boston
Outbound
11/09/25
direct
BA1545
07h 20min
Return
15/09/25
direct
BA0238
06h 30min
British Airways ?
£549
London Heathrow
Boston
Outbound
03/09/25
1 Stopover (FRA)
LH0923, DE2038
11h 25min
Return
15/09/25
1 Stopover (FRA)
DE2039, LH0904
13h 25min
Lufthansa, Condor
£738
London Heathrow
Boston
Outbound
03/09/25
1 Stopover (ZRH)
LX0319, LX0052
12h 45min
Return
15/09/25
1 Stopover (YUL)
AC8611, AC0866
30h 50min
Swiss International Air Lines
£408
London Heathrow
Boston
Outbound
03/09/25
1 Stopover (ZRH)
LX0319, LX0052
12h 45min
Return
15/09/25
1 Stopover (YUL)
AC8611, AC0866
30h 50min
Swiss International Air Lines
£410
London Heathrow
Boston
Outbound
03/09/25
1 Stopover (ZRH)
LX0319, LX0052
12h 45min
Return
15/09/25
1 Stopover (YUL)
AC8611, AC0866
30h 50min
Swiss International Air Lines
£412
London Heathrow
Boston
Outbound
11/09/25
1 Stopover (KEF)
FI0451, FI0633
13h 55min
Return
15/09/25
1 Stopover (KEF)
FI0630, FI0450
10h 05min
Icelandair
£428
London Heathrow
Boston
Outbound
11/09/25
1 Stopover (KEF)
FI0451, FI0633
13h 55min
Return
15/09/25
1 Stopover (KEF)
FI0630, FI0450
10h 05min
Icelandair
£429
London Heathrow
Boston
Outbound
03/09/25
1 Stopover (ZRH)
UA9759, UA9722
11h 10min
Return
15/09/25
1 Stopover (YUL)
UA8363, UA8296
30h 50min
United Airlines ?
£433
London Heathrow
Boston
Outbound
11/09/25
1 Stopover (ZRH)
LX0317, LX0054
11h 45min
Return
15/09/25
1 Stopover (IAD)
OS7888, OS7806
11h 39min
Swiss International Air Lines ?
£443
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to Boston

Favourite airline: Icelandair
Flight tickets on the route London Heathrow – Boston are most frequently booked with Icelandair.
Icelandair
35 %
British Airways
15 %
SAS
15 %
Stopover flights are the cheapest connection
Compared to direct flights, flights with a stopover on this route are on average 11 % cheaper.
non stop flight
1 stop
2 stops
07h 20min
29h 25min
16h 00min
734 £
660 £
1.055 £
Favourite connection: via Reykjavik-Keflavik
The most popular flights on this route are via Reykjavik-Keflavik and are booked by 43 % of all travellers.
Route
bookings
1 stopover Reykjavik-Keflavik International
29h 25min, from 660 £
43 %
Direct flights
07h 20min, from 734 £
33 %
1 stopover Copenhagen
13h 45min, from 709 £
19 %

Important flight information

Flight information: London Heathrow - Boston

Outbound and return from 401,93 £
Flight duration min. 07:40 / max. 07:58
Return flight duration min. 06:20/ max. 06:42
Distance 5245 km
Flights per week 42
Departure airport Airport London Heathrow (LHR)
Arrival airport Airport Boston Logan (BOS)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Boston
Flight destinations with a similar price