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

Return flights

07 Dec - 28 Dec	Delta
01 Dec - 27 Dec	Delta
05 Dec - 15 Dec	Iberia
24 Dec - 15 Jan	Air Canada
29 Dec - 15 Jan	Air Canada
12 Dec - 27 Dec	Delta
12 Dec - 15 Jan	Delta
23 Dec - 30 Dec	Iberia
13 Dec - 27 Dec	Delta
14 Dec - 09 Jan	Aer Lingus
29 Dec - 18 Jan	Vueling Airlines
24 Dec - 16 Jan	Turkish Airlines
06 Dec - 09 Jan	Delta
05 Dec - 31 Dec	Iberia
24 Dec - 10 Jan	Air Canada
18 Dec - 15 Jan	Aer Lingus
12 Dec - 17 Jan	Aer Lingus

Also check the deals for one-way flights from Dublin 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 Dublin to Santiago in December from 731€

Return flights