Cheapest return flights from Boston to Barcelona in August from $316

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

03 Aug - 12 Aug LEVEL direct
02 Aug - 12 Aug LEVEL direct
04 Aug - 12 Aug LEVEL direct
06 Aug - 29 Aug LEVEL direct
09 Aug - 21 Aug LEVEL direct
16 Aug - 05 Sep LEVEL direct
22 Aug - 06 Sep LEVEL direct
13 Aug - 20 Aug LEVEL direct
17 Aug - 25 Aug LEVEL direct
17 Aug - 26 Aug LEVEL direct
09 Aug - 22 Aug Iberia direct
21 Aug - 04 Sep LEVEL direct
18 Aug - 05 Sep Iberia direct
13 Aug - 22 Aug LEVEL direct
14 Aug - 04 Sep Iberia direct
28 Aug - 13 Sep TAP
16 Aug - 01 Sep Iberia direct
29 Aug - 06 Sep LEVEL direct
29 Aug - 03 Sep LEVEL direct
29 Aug - 01 Sep Scandinavian Airlines

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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