Cheapest return flights from Boston to Barcelona in September from $284

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

Return flights

21 Sep - 30 Sep Iberia For Level direct
22 Sep - 30 Sep Iberia For Level direct
30 Sep - 07 Oct Iberia For Level direct
22 Sep - 10 Oct Iberia For Level direct
28 Sep - 06 Oct Iberia For Level direct
30 Sep - 24 Oct Iberia For Level direct
28 Sep - 02 Oct Iberia For Level direct
22 Sep - 07 Oct Iberia direct
28 Sep - 07 Oct Iberia direct
22 Sep - 29 Sep Iberia direct
08 Sep - 15 Sep Iberia For Level direct
01 Sep - 10 Sep Iberia For Level direct
10 Sep - 23 Sep Iberia For Level direct
09 Sep - 16 Sep Iberia For Level direct
09 Sep - 23 Sep Iberia For Level direct
03 Sep - 13 Sep Iberia For Level direct
21 Sep - 01 Oct Iberia direct
21 Sep - 03 Oct Iberia direct
15 Sep - 29 Sep Iberia For Level direct
09 Sep - 01 Oct Iberia direct

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

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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