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

Return flights

02 Oct - 18 Oct	American Airlines
16 Oct - 04 Nov	American Airlines
07 Oct - 20 Oct	Delta
07 Oct - 21 Oct	Delta
09 Oct - 21 Oct	Delta
23 Oct - 08 Nov	Delta
29 Oct - 12 Nov	Delta
24 Oct - 08 Nov	Delta
24 Oct - 01 Nov	Delta
29 Oct - 17 Nov	Delta
02 Oct - 14 Nov	Delta
07 Oct - 18 Oct	Delta
02 Oct - 28 Oct	Delta
09 Oct - 16 Oct	Delta
02 Oct - 23 Oct	Delta
14 Oct - 21 Oct	Delta
14 Oct - 01 Nov	Delta
14 Oct - 27 Oct	Delta
23 Oct - 11 Nov	Delta
29 Oct - 10 Nov	Delta

Also check the deals for one-way flights from Barcelona to Santiago in October.

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 October from 537€

Return flights