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

Return flights

17 Apr - 22 Apr	Icelandair
18 Apr - 25 Apr	Icelandair
20 Apr - 26 Apr	Icelandair
04 Apr - 06 Apr	Iberia	direct
13 Apr - 20 Apr	Iberia	direct
06 Apr - 09 Apr	Iberia	direct
06 Apr - 13 Apr	Iberia	direct
10 Apr - 13 Apr	Iberia	direct
14 Apr - 21 Apr	Iberia	direct
15 Apr - 22 Apr	Iberia	direct
28 Apr - 01 May	Iberia	direct
29 Apr - 06 May	Iberia	direct
30 Apr - 04 May	Iberia	direct
29 Apr - 07 May	Icelandair
30 Apr - 09 May	TAP
30 Apr - 10 May	TAP
28 Apr - 05 May	Iberia
22 Apr - 02 May	LEVEL	direct
30 Apr - 09 May	LEVEL	direct
29 Apr - 07 May	LEVEL	direct

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

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 April from $384

Return flights