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

Return flights

15 Dec - 22 Dec	Iberia	direct
08 Dec - 15 Dec	Iberia	direct
10 Dec - 17 Dec	Iberia	direct
04 Dec - 12 Dec	TAP
03 Dec - 09 Dec	TAP
01 Dec - 08 Dec	Iberia	direct
01 Dec - 15 Dec	Iberia	direct
24 Dec - 31 Dec	Iberia
12 Dec - 19 Dec	Iberia	direct
05 Dec - 08 Dec	Iberia	direct
30 Dec - 06 Jan	Iberia
29 Dec - 05 Jan	Iberia
31 Dec - 07 Jan	Iberia
31 Dec - 03 Jan	Iberia
27 Dec - 03 Jan	Iberia
26 Dec - 02 Jan	Iberia
25 Dec - 01 Jan	Iberia
29 Dec - 01 Jan	Iberia
30 Dec - 02 Jan	Iberia

Also check the deals for one-way flights from Barcelona to Boston in December.

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 December from 425€

Return flights