Cheapest return flights from Barcelona to Boston in September from $344

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

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

Return flights

24 Sep - 28 Sep Fly Play
24 Sep - 14 Oct Fly Play
03 Sep - 14 Sep Fly Play
10 Sep - 16 Sep Fly Play
09 Sep - 23 Sep LEVEL direct
24 Sep - 27 Sep Icelandair
08 Sep - 15 Sep LEVEL direct
03 Sep - 14 Sep Iberia direct
24 Sep - 01 Oct Finnair
12 Sep - 04 Oct TAP
28 Sep - 03 Oct LEVEL direct
01 Sep - 22 Sep LEVEL direct
10 Sep - 16 Sep LEVEL direct
12 Sep - 04 Oct Virgin Atlantic direct
24 Sep - 14 Oct Virgin Atlantic direct
24 Sep - 27 Sep Virgin Atlantic direct

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