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

Return flights

27 Oct - 03 Nov	LEVEL	direct
20 Oct - 27 Oct	Iberia	direct
13 Oct - 20 Oct	Iberia	direct
29 Oct - 05 Nov	Iberia	direct
07 Oct - 14 Oct	LEVEL	direct
01 Oct - 04 Oct	Iberia	direct
10 Oct - 13 Oct	Iberia	direct
11 Oct - 18 Oct	Iberia	direct
13 Oct - 16 Oct	Iberia	direct
20 Oct - 23 Oct	Iberia	direct
22 Oct - 29 Oct	Iberia	direct
02 Oct - 05 Oct	Iberia	direct
31 Oct - 03 Nov	Iberia	direct
23 Oct - 07 Nov	TAP
29 Oct - 03 Nov	TAP
31 Oct - 07 Nov	Iberia	direct
23 Oct - 07 Nov	LEVEL	direct
29 Oct - 01 Nov	Iberia
26 Oct - 02 Nov	Iberia
28 Oct - 04 Nov	Iberia

Also check the deals for one-way flights from Barcelona 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 Barcelona to Boston in October from 440€

Return flights