Cheapest return flights from Boston to Barcelona in August from $400

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 August 2025 (see full year).

Return flights

26 Aug - 12 Sep LEVEL direct
26 Aug - 05 Sep LEVEL direct
26 Aug - 08 Sep LEVEL direct
27 Aug - 12 Sep LEVEL direct
27 Aug - 05 Sep LEVEL direct
31 Aug - 12 Sep LEVEL direct
31 Aug - 05 Sep LEVEL direct
26 Aug - 07 Sep LEVEL direct
26 Aug - 01 Sep LEVEL direct
27 Aug - 08 Sep LEVEL direct
04 Aug - 25 Aug LEVEL direct
03 Aug - 16 Aug Fly Play
04 Aug - 12 Aug LEVEL direct
04 Aug - 10 Aug LEVEL direct
04 Aug - 07 Aug LEVEL direct
04 Aug - 20 Aug LEVEL direct
03 Aug - 12 Aug LEVEL direct
03 Aug - 10 Aug LEVEL direct
03 Aug - 07 Aug LEVEL direct
03 Aug - 04 Aug LEVEL direct

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

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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