Cheapest return flights from Boston to Barcelona in October from 353€

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

16 Oct - 24 Oct Fly Play
26 Oct - 07 Nov Air Canada
10 Oct - 15 Oct Iberia
10 Oct - 15 Oct LEVEL direct
16 Oct - 24 Oct LEVEL direct
14 Oct - 21 Oct TAP
19 Oct - 26 Oct Vueling Airlines
09 Oct - 13 Oct Vueling Airlines
09 Oct - 13 Oct LEVEL 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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona