Flight Routes from London to Boston

Trip type

Our cheapest offers for flights from London to Boston

Here you can compare cheap flights from London (LON) 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
Boston
Outbound
25/05/26
direct
KL4806
07h 25min
Return
07/06/26
1 Stopover (JFK)
KL5006, KL2509
10h 20min
KLM
£401
Best option
London
Boston
Outbound
25/05/26
direct
KL4808
07h 45min
Return
07/06/26
direct
KL4805
06h 30min
KLM
£409
London
Boston
Outbound
17/08/26
1 Stopover (FRA)
DE4122, DE2038
33h 25min
Return
15/09/26
1 Stopover (FRA)
DE2039, DE4245
16h 55min
Condor
£519
London
Boston
Outbound
25/05/26
direct
AF9658
07h 45min
Return
07/06/26
direct
AF9646
06h 30min
Air France
£409
London
Boston
Outbound
25/05/26
direct
AF9658
07h 45min
Return
07/06/26
direct
AF9646
06h 30min
Air France
£410
London
Boston
Outbound
25/05/26
direct
KL4808
07h 45min
Return
07/06/26
direct
KL4805
06h 30min
KLM
£410
London
Boston
Outbound
25/05/26
1 Stopover (CDG)
AF1705, AF0332
14h 10min
Return
07/06/26
1 Stopover (CDG)
AF0333, AF1706
17h 40min
Air France
£415
London
Boston
Outbound
25/05/26
1 Stopover (CDG)
AF1705, AF0332
14h 10min
Return
07/06/26
1 Stopover (CDG)
AF0333, AF1706
17h 40min
Air France
£416
London
Boston
Outbound
25/05/26
direct
KL4806
07h 25min
Return
07/06/26
direct
KL4805
06h 30min
KLM
£418
London
Boston
Outbound
25/05/26
direct
VS0157
07h 45min
Return
07/06/26
direct
VS0012
06h 30min
Virgin Atlantic Airways
£418
Prices based on recent searches, subject to last-minute changes
Page 1 / 5

Tips and tricks to help you find cheap flights from London to Boston

Favourite airline: Icelandair
25 % of flights on the route London – Boston are booked with Icelandair.
Icelandair
25 %
British Airways
11 %
SAS
11 %
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are £79.00 more expensive on this route.
non stop flight
1 stop
2 stops
07h 20min
13h 50min
16h 00min
734 £
655 £
1.055 £
Favourite connection: via Reykjavik-Keflavik
39 % of tickets booked on this route are for flights via Reykjavik-Keflavik.
Route
bookings
1 stopover Reykjavik-Keflavik International
13h 50min, from 655 £
39 %
Direct flights
07h 20min, from 734 £
30 %
1 stopover Copenhagen
13h 45min, from 709 £
17 %

Important flight information

Flight information: London - Boston

Outbound and return from 400,97 £
Flight duration min. 07:30 / max. 07:58
Return flight duration min. 06:20/ max. 06:42
Distance 5264 km
Flights per week 50
Departure airport Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
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