Cheapest return flights from Boston to Barcelona in October from 331€

Best time to book flights for Boston (BOS) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Barcelona (BCN) in October 2025 (see full year).

Return flights

14 Oct - 22 Oct Fly Play
05 Oct - 15 Oct Fly Play
16 Oct - 21 Oct LEVEL direct
15 Oct - 22 Oct LEVEL direct
14 Oct - 21 Oct LEVEL direct
14 Oct - 22 Oct LEVEL direct
05 Oct - 15 Oct LEVEL direct
23 Oct - 30 Oct Iberia direct
08 Oct - 13 Oct TAP
14 Oct - 07 Nov Iberia
21 Oct - 28 Oct Iberia direct

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

Skyscanner

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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