AirHint found the following cheapest return flights from Barcelona (BCN) to Santiago (SCL) in August 2025 (see full year).

Return flights

16 Aug - 30 Aug	Delta
20 Aug - 30 Aug	Delta
17 Aug - 24 Aug	Delta
16 Aug - 01 Sep	Delta
23 Aug - 05 Sep	Delta
23 Aug - 07 Sep	Delta
17 Aug - 05 Sep	Delta
16 Aug - 05 Sep	Delta
16 Aug - 27 Sep	Delta
22 Aug - 07 Sep	Delta
16 Aug - 03 Sep	Delta
20 Aug - 03 Sep	Delta
25 Aug - 01 Sep	Delta
18 Aug - 30 Aug	Delta
18 Aug - 31 Aug	Delta
18 Aug - 24 Aug	Delta
23 Aug - 30 Aug	Delta
17 Aug - 29 Aug	Delta
28 Aug - 31 Aug	Delta
17 Aug - 27 Aug	Delta

Also check the deals for one-way flights from Barcelona to Santiago 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 Santiago in August from $803

Return flights