Cheapest return flights from Boston to Barcelona in May from 501€

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

Return flights

02 May - 15 May LEVEL direct
14 May - 23 May LEVEL direct
14 May - 22 May LEVEL direct
06 May - 14 May LEVEL direct
04 May - 13 May LEVEL direct
04 May - 07 May LEVEL direct
16 May - 23 May LEVEL direct
06 May - 13 May LEVEL direct
01 May - 04 May LEVEL direct
01 May - 08 May LEVEL direct
26 May - 02 Jun LEVEL direct
28 May - 02 Jun LEVEL direct
26 May - 09 Jun LEVEL direct
30 May - 02 Jun Iberia direct
25 May - 09 Jun KLM
26 May - 06 Jun LEVEL direct
30 May - 06 Jun LEVEL direct
15 May - 02 Jun LEVEL direct
01 May - 01 Jun LEVEL direct
28 May - 04 Jun Iberia direct

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

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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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