Cheapest one-way flights from London to Boston in December from $371
AirHint found the following cheapest one-way flights from London (LHR) to Boston (BOS) in December 2025 (see full year).
One-Way flights
| 02 Dec | Scandinavian Airlines | ||
| 22 Dec | British Airways | ||
| 27 Dec | Aer Lingus | ||
| 31 Dec | British Airways | ||
| 02 Dec | jetBlue | direct | |
| 27 Dec | British Airways | direct | |
| 22 Dec | British Airways | direct | |
| 31 Dec | Iberia | direct |
Also check the deals for return flights from London to Boston in December.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
