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

Return flights

25 Jan - 29 Jan	Ryanair
21 Jan - 09 Feb	Ryanair
23 Jan - 29 Jan	Ryanair
14 Jan - 17 Jan	Ryanair
17 Jan - 19 Jan	Ryanair
17 Jan - 24 Jan	Ryanair
14 Jan - 31 Jan	Ryanair
18 Jan - 05 Feb	Ryanair
26 Jan - 31 Jan	Ryanair
15 Jan - 27 Jan	Ryanair
14 Jan - 22 Jan	Ryanair
15 Jan - 04 Feb	Ryanair
15 Jan - 22 Jan	Ryanair
29 Jan - 03 Feb	Ryanair
25 Jan - 01 Feb	Ryanair
28 Jan - 04 Feb	Ryanair
25 Jan - 06 Feb	Ryanair
14 Jan - 04 Feb	Ryanair
09 Jan - 04 Feb	Ryanair
31 Jan - 10 Feb	Ryanair

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

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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Cheapest return flights from London to Boston in January from 297€

Return flights