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
30 Aug - 12 Sep	Iberia
27 Aug - 31 Aug	Iberia
27 Aug - 06 Sep	Iberia
28 Aug - 31 Aug	Iberia
28 Aug - 30 Aug	Iberia
26 Aug - 03 Sep	KLM
26 Aug - 07 Sep	TAP
25 Aug - 01 Sep	Air France
17 Aug - 31 Aug	Iberia
24 Aug - 30 Aug	Vueling Airlines
18 Aug - 03 Sep	Condor
04 Aug - 12 Aug	United
17 Aug - 26 Aug	Vueling Airlines
20 Aug - 23 Aug	FlyOne (Romania)
04 Aug - 16 Aug	Vueling Airlines
06 Aug - 27 Aug	United
21 Aug - 03 Sep	Iberia

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 534€

Return flights