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
04/21/25
1 Stopover (KEF)
FI0632, FI0450
31h 20min
Return
05/19/25
1 Stopover (KEF)
FI0455, FI0633
29h 35min
Icelandair
$445
Best option
Boston
London
Outbound
04/21/25
direct
AY4185
06h 50min
Return
05/19/25
direct
AY5413
07h 30min
Finnair
$769
Boston
London
Outbound
06/10/25
1 Stopover (FRA)
DE2039, LH0904
13h 25min
Return
06/29/25
1 Stopover (FRA)
LH0923, DE2038
11h 25min
Condor, Lufthansa
$1,192
Boston
London
Outbound
04/21/25
1 Stopover (KEF)
FI0632, FI0450
31h 20min
Return
05/19/25
1 Stopover (KEF)
FI0455, FI0633
29h 35min
Icelandair
$449
Boston
London
Outbound
04/21/25
1 Stopover (KEF)
FI0632, FI0450
31h 20min
Return
05/19/25
1 Stopover (KEF)
FI0455, FI0633
29h 35min
Icelandair ?
$483
Boston
London
Outbound
04/21/25
1 Stopover (KEF)
FI0632, FI0450
31h 20min
Return
05/19/25
1 Stopover (KEF)
FI0455, FI0633
29h 35min
Icelandair ?
$485
Boston
London
Outbound
04/21/25
1 Stopover (KEF)
FI0632, FI0450
31h 20min
Return
05/19/25
1 Stopover (KEF)
FI0455, FI0633
29h 35min
Icelandair ?
$496
Boston
London
Outbound
04/21/25
1 Stopover (EWR)
UA1719, UA0014
14h 50min
Return
05/19/25
1 Stopover (ZRH)
LX0339, LX0054
24h 20min
United Airlines ?
$577
Boston
London
Outbound
04/12/25
1 Stopover (YUL)
UA8363, UA8068
11h 25min
Return
04/27/25
1 Stopover (YUL)
UA8297, UA8122
29h 52min
United Airlines ?
$607
found yesterday
Boston
London
Outbound
04/12/25
1 Stopover (YHZ)
UA8482, UA8298
21h 50min
Return
04/27/25
1 Stopover (YUL)
AC0865, AC8604
25h 02min
United Airlines ?
$611
found yesterday
Prices based on recent searches, subject to last-minute changes
Page 1 / 3

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 USD
433 USD
583 USD
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 USD
35 %
1 stopover Montréal-Pierre Elliott Trudeau International Airport
30h 25min, from 537 USD
26 %
Direct flights
06h 50min, from 564 USD
20 %

Important flight information

Flight information: Boston - London

Roundtrip from 444,23 USD
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 (LCY, LGW, LHR, LTN, STN, SEN) (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