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

Return flights

12 Oct - 15 Oct	Wizz Air Malta
14 Oct - 20 Oct	Iberia Express
01 Oct - 05 Oct	Iberia
12 Oct - 19 Oct	Iberia
14 Oct - 21 Oct	Iberia
15 Oct - 18 Oct	Iberia
20 Oct - 27 Oct	Iberia
22 Oct - 29 Oct	Iberia
13 Oct - 20 Oct	Iberia
17 Oct - 20 Oct	Iberia
29 Oct - 05 Nov	Iberia
27 Oct - 03 Nov	Iberia
30 Oct - 10 Nov	Iberia
31 Oct - 03 Nov	Iberia
28 Oct - 02 Nov	Iberia	direct
26 Oct - 02 Nov	Iberia
30 Oct - 02 Nov	Iberia
29 Oct - 01 Nov	Iberia
30 Oct - 06 Nov	Iberia
25 Oct - 01 Nov	Iberia	direct

Also check the deals for one-way flights from Madrid to Boston in October.

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 October from 318€

Return flights