Cheapest return flights from Boston to Barcelona in October from $346

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 LEVEL direct
09 Oct - 16 Oct LEVEL direct
09 Oct - 15 Oct LEVEL direct
07 Oct - 15 Oct LEVEL direct
02 Oct - 10 Oct LEVEL direct
23 Oct - 27 Oct Iberia direct
19 Oct - 27 Oct Iberia direct
22 Oct - 30 Oct Iberia direct
14 Oct - 21 Oct LEVEL direct
28 Oct - 04 Nov Iberia direct
13 Oct - 21 Oct LEVEL direct
26 Oct - 03 Nov Iberia
25 Oct - 01 Nov Iberia
26 Oct - 02 Nov Icelandair

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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