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

Return flights

30 Aug - 13 Sep	Iberia
26 Aug - 06 Sep	KLM
28 Aug - 06 Sep	KLM
07 Aug - 27 Aug	United
04 Aug - 18 Aug	TAP
03 Aug - 09 Aug	Iberia
12 Aug - 23 Aug	Iberia
07 Aug - 13 Aug	United
07 Aug - 21 Aug	Iberia
08 Aug - 27 Aug	United
15 Aug - 22 Aug	Iberia
16 Aug - 30 Aug	Iberia
06 Aug - 23 Aug	Vueling Airlines

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

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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Cheapest return flights from Barcelona to San Juan in August from 697€

Return flights