Cheapest return flights from Barcelona to Boston in September from $428

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

22 Sep - 26 Sep Iberia direct
16 Sep - 30 Sep Iberia direct
25 Sep - 15 Oct Iberia direct
23 Sep - 30 Sep LEVEL direct
16 Sep - 23 Sep LEVEL direct
26 Sep - 15 Oct LEVEL direct
01 Sep - 06 Sep Iberia direct
13 Sep - 21 Sep TAP
13 Sep - 21 Sep Vueling Airlines direct
10 Sep - 01 Oct Iberia direct
05 Sep - 07 Sep LEVEL direct
08 Sep - 15 Sep LEVEL direct
16 Sep - 08 Oct Finnair
06 Sep - 24 Sep TAP
11 Sep - 01 Oct Finnair
26 Sep - 10 Oct Iberia
12 Sep - 03 Oct LEVEL direct
12 Sep - 04 Oct Iberia
26 Sep - 10 Oct LEVEL direct
12 Sep - 04 Oct 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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