Cheapest return flights from Boston to Barcelona in August from $476

AirHint found the following cheapest return flights from Boston (BOS) to Barcelona (BCN) in August 2026 (see full year).

Return flights

19 Aug - 27 Aug Air Canada
10 Aug - 20 Aug Air Canada
09 Aug - 25 Aug Air Canada
11 Aug - 25 Aug Air Canada
05 Aug - 12 Aug Condor
30 Aug - 06 Sep Condor
31 Aug - 07 Sep Condor
17 Aug - 24 Aug Iberia
19 Aug - 27 Aug Finnair direct
09 Aug - 25 Aug Finnair direct
10 Aug - 20 Aug American Airlines direct
02 Aug - 12 Aug Aer Lingus
31 Aug - 07 Sep LEVEL direct
25 Aug - 01 Sep Iberia
21 Aug - 01 Sep Air Canada
26 Aug - 02 Sep Iberia direct
30 Aug - 02 Sep Iberia direct
21 Aug - 01 Sep LEVEL direct
28 Aug - 04 Sep Iberia direct
30 Aug - 06 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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