Cheapest return flights from Boston to Barcelona in August from $395

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

12 Aug - 27 Aug Finnair direct
18 Aug - 24 Aug TAP
09 Aug - 20 Aug Iberia
20 Aug - 29 Aug British Airways
18 Aug - 27 Aug Icelandair
18 Aug - 26 Aug British Airways
06 Aug - 13 Aug Finnair direct
31 Aug - 08 Sep Iberia
30 Aug - 08 Sep Icelandair
27 Aug - 07 Sep Iberia
09 Aug - 20 Aug LEVEL direct
21 Aug - 28 Aug LEVEL direct
17 Aug - 25 Aug LEVEL direct
27 Aug - 04 Sep Iberia
30 Aug - 08 Sep LEVEL direct
31 Aug - 08 Sep LEVEL direct
28 Aug - 05 Sep LEVEL direct
15 Aug - 02 Sep LEVEL direct
29 Aug - 06 Sep LEVEL direct
27 Aug - 07 Sep LEVEL direct

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

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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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