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

Return flights

04 May - 11 May	LEVEL	direct
21 May - 26 May	LEVEL	direct
20 May - 26 May	LEVEL	direct
14 May - 26 May	LEVEL	direct
04 May - 06 May	LEVEL	direct
05 May - 11 May	LEVEL	direct
15 May - 26 May	Condor
20 May - 23 May	LEVEL	direct
01 May - 05 May	LEVEL	direct
15 May - 18 May	Condor
27 May - 02 Jun	LEVEL	direct
27 May - 05 Jun	LEVEL	direct
29 May - 01 Jun	Iberia
27 May - 03 Jun	Iberia	direct
26 May - 02 Jun	Iberia	direct
28 May - 04 Jun	Iberia	direct
25 May - 01 Jun	Iberia
30 May - 02 Jun	Iberia	direct
31 May - 07 Jun	Iberia
30 May - 06 Jun	Iberia	direct

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

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 May from 210€

Return flights