BA's Club Suite offers private pods with doors, ideal for long-haul comfort.
BA's World Traveller Plus offers extra seat width and legroom, enhancing comfort.
Round-trip from | $460 (United Airlines) |
---|---|
One-way from | $406 (TAP AIR PORTUGAL) |
Popular in | December |
Cheapest in | September |
Average price | $527 |
Good round-trip deal | $568 or less |
Good one-way deal | $492 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonBoston
LHR - BOS
LHRBOS
London Heathrow
Mon 9/22
9:30 am-3:55 pm
1 stop11h 25m
Boston Logan Intl
Mon 9/29
5:05 pm-7:55 am
1 stop9h 50m
LondonBoston
LHR - BOS
LHRBOS
London Heathrow
Tue 9/30
6:50 am-4:22 pm
2 stops14h 32m
Boston Logan Intl
Thu 10/9
6:00 am-8:40 pm
1 stop9h 40m
LondonBoston
LHR - BOS
LHRBOS
London Heathrow
Wed 10/1
6:50 am-4:22 pm
2 stops14h 32m
Boston Logan Intl
Wed 10/8
6:00 am-8:40 pm
1 stop9h 40m
LondonBoston
LCY - BOS
LCYBOS
London City
Thu 9/25
9:25 am-3:25 pm
1 stop11h 00m
Boston Logan Intl
Thu 10/2
5:05 pm-8:50 am
1 stop10h 45m
LondonBoston
STN - BOS
STNBOS
London Stansted
Mon 2/2
8:40 am-8:55 pm
1 stop17h 15m
Boston Logan Intl
Thu 2/26
10:40 pm-4:05 pm
1 stop12h 25m
LondonBoston
LGW - BOS
LGWBOS
London Gatwick
Fri 10/3
3:05 pm-10:50 pm
1 stop12h 45m
Boston Logan Intl
Wed 10/15
3:00 pm-8:10 am
1 stop12h 10m
LondonBoston
LGW - BOS
LGWBOS
London Gatwick
Thu 10/9
3:05 pm-5:15 pm
1 stop31h 10m
Boston Logan Intl
Mon 10/13
6:28 am-8:10 am
1 stop20h 42m
LondonBoston
LGW - BOS
LGWBOS
London Gatwick
Tue 9/30
3:05 pm-10:50 pm
1 stop12h 45m
Boston Logan Intl
Fri 10/17
6:28 am-8:10 am
1 stop20h 42m
LondonBoston
LGW - BOS
LGWBOS
London Gatwick
Thu 10/9
3:05 pm-5:15 pm
1 stop31h 10m
Boston Logan Intl
Tue 10/14
1:01 pm-8:10 am
1 stop14h 09m
LondonBoston
LHR - BOS
LHRBOS
London Heathrow
Fri 10/3
12:40 pm-5:38 pm
1 stop9h 58m
Boston Logan Intl
Sun 10/5
12:10 pm-6:30 am
2 stops13h 20m
Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, January is the cheapest month in which you can book a flight from London to Boston (average of $218). Flying from London to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from London to Boston is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 15% on airfare.
Travelers seeking maximum savings on their London to Boston flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from LON to BOS are scheduled on a Monday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (34 on average).
Reykjavik (KEF) – chosen by Cheapflights users on 67% of 1-stop itineraries from London to Boston on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $494.
Flights via Lisbon (LIS) have the shortest average one-way travel time for 1-stop routes: 13h 30m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 5h 19m.
Overall
Comfort
Boarding
Crew
Food
Entertainment
Reviews
Morgan Rae,Aug 2025
BRU - JFK
Overall
Comfort
Boarding
Crew
Food
Entertainment
Reviews
Morgan Rae,Aug 2025
BRU - JFK
Overall
Comfort
Boarding
Crew
Food
Entertainment
Reviews
Morgan Rae,Aug 2025
BRU - JFK
Overall
Comfort
Boarding
Crew
Food
Entertainment
Reviews
Morgan Rae,Aug 2025
BRU - JFK
Overall
Comfort
Boarding
Crew
Food
Entertainment
Reviews
Morgan Rae,Aug 2025
BRU - JFK
Overall
Comfort
Boarding
Crew
Food
Entertainment
Reviews
Morgan Rae,Aug 2025
BRU - JFK
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$341 | Average$535 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$352 | Average$477 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$412 | Average$731 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$414 | Average$546 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$431 | Average$679 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$464 | Average$543 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$465 | Average$569 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$487 | Average$804 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$506 | Average$644 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$521 | Average$773 | FlexibilityNo cancel fee | On-timeN/A |