Flights from Boston to London

Our cheapest offers for flights from Boston to London

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

Outbound Return Airlines Shop Baggage Price
Boston
London
Outbound
09/18/25
1 Stopover (ORD)
UA2040, UA0938
14h 18min
Return
09/23/25
1 Stopover (ZRH)
LX0333, LX0052
11h 10min
United Airlines
$531
Best option
Boston
London
Outbound
09/18/25
direct
BA1540
06h 40min
Return
09/23/25
direct
BA0239
07h 35min
British Airways ?
$542
Boston
London
Outbound
09/18/25
direct
VS0158
06h 50min
Return
09/23/25
1 Stopover (AMS)
VS7048, VS7119
13h 25min
Virgin Atlantic Airways ?
$543
Boston
London
Outbound
09/18/25
direct
IB4027
06h 45min
Return
09/23/25
direct
IB4261
07h 20min
Iberia ?
$567
Boston
London
Outbound
09/18/25
direct
AY0108
06h 40min
Return
09/23/25
1 Stopover (DUB)
AY8035, AY7997
14h 55min
Finnair ?
$741
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

Favorite airline: Icelandair
61 % of travelers choose to book flights on this route with Icelandair, United Airlines and Air Canada.
Icelandair
28 %
United Airlines
17 %
Air Canada
16 %
Direct flights are more expensive
Flights with a stopover are on average $131.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
06h 50min
18h 20min
21h 30min
564 US$
433 US$
583 US$
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 433 US$
35 %
1 stopover Montréal-Pierre Elliott Trudeau International Airport
30h 25min, from 537 US$
26 %
Direct flights
06h 50min, from 564 US$
20 %

Important flight information

Flight information: Boston - London

Roundtrip from 531,00 US$
Flight duration min. 06:20 / max. 06:42
Return flight duration min. 07:30/ max. 07:58
Distance 5264 km
Flights per week 50
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport London, all Airports (LON)
Destination country Flights to United Kingdom
Alternative routes to United Kingdom
Alternative flights to London
Flight destinations with a similar price
Flight destinations with a similar price