Cheapest return flights from London to Boston in January from $504

Best time to book flights for London (LCY) to Boston (BOS) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Boston (BOS) in January 2026 (see full year).

Return flights

28 Jan - 23 Feb SWISS
07 Jan - 10 Jan SWISS
02 Jan - 21 Jan Aer Lingus
15 Jan - 15 Jan British Airways
01 Jan - 04 Jan British Airways
07 Jan - 07 Jan Delta
08 Jan - 08 Jan Delta
09 Jan - 09 Jan Delta
11 Jan - 11 Jan Delta
12 Jan - 12 Jan Delta
13 Jan - 13 Jan Delta

Also check the deals for one-way flights from London to Boston in January.

Skyscanner

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.

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