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

Return flights

03 Dec - 23 Jan	Air Canada
01 Dec - 31 Dec	Air Canada
04 Dec - 24 Dec	Air Canada
08 Dec - 26 Dec	Delta
08 Dec - 28 Dec	Delta
08 Dec - 29 Dec	Delta
03 Dec - 29 Dec	Delta
04 Dec - 28 Dec	Delta
05 Dec - 22 Dec	Delta
05 Dec - 29 Dec	Delta
01 Dec - 15 Dec	Lufthansa
04 Dec - 31 Jan	Air Canada
01 Dec - 26 Jan	Delta
08 Dec - 22 Jan	Delta
29 Dec - 16 Jan	Air Canada
30 Dec - 18 Jan	Air Canada
16 Dec - 15 Jan	Air Canada
10 Dec - 24 Jan	Delta
24 Dec - 15 Jan	Delta
29 Dec - 24 Jan	Delta

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

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 December from 656€

Return flights