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

Return flights

15 Jan - 18 Jan	Iberia Express
22 Jan - 27 Jan	Iberia Express
22 Jan - 25 Jan	Iberia Express
15 Jan - 24 Jan	Iberia Express
22 Jan - 29 Jan	Iberia Express
14 Jan - 19 Jan	Iberia Express
24 Jan - 27 Jan	Iberia
26 Jan - 02 Feb	Iberia
20 Jan - 25 Jan	Iberia
17 Jan - 19 Jan	Wizz Air Malta
21 Jan - 24 Jan	Iberia
27 Jan - 03 Feb	Iberia
31 Jan - 03 Feb	Iberia
29 Jan - 05 Feb	Iberia
30 Jan - 02 Feb	Iberia
28 Jan - 04 Feb	Iberia
29 Jan - 01 Feb	Iberia
30 Jan - 01 Feb	Wizz Air Malta
25 Jan - 01 Feb	Iberia
28 Jan - 01 Feb	British Airways

Also check the deals for one-way flights from Madrid 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 Madrid to Boston in January from 302€

Return flights