Cheapest return flights from Boston to Barcelona in October from $372

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 Icelandair
17 Oct - 25 Oct Icelandair
06 Oct - 15 Oct Icelandair
12 Oct - 19 Oct LEVEL direct
07 Oct - 15 Oct LEVEL direct
06 Oct - 15 Oct LEVEL direct
01 Oct - 19 Oct LEVEL direct
14 Oct - 22 Oct LEVEL direct
01 Oct - 05 Oct LEVEL direct
20 Oct - 28 Oct Iberia direct
27 Oct - 04 Nov Iberia direct
23 Oct - 01 Nov Iberia direct
30 Oct - 03 Nov Iberia direct
24 Oct - 07 Nov Icelandair
27 Oct - 05 Nov Iberia

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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