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

Return flights

17 Dec - 29 Dec	Air Canada
12 Dec - 15 Jan	Air Canada
17 Dec - 27 Dec	Air Canada
12 Dec - 17 Jan	Air Canada
01 Dec - 23 Dec	Air Canada
15 Dec - 13 Jan	Air Canada
17 Dec - 28 Dec	Air Canada
05 Dec - 09 Jan	Air Canada
11 Dec - 20 Dec	Aer Lingus
05 Dec - 10 Jan	Air Canada
17 Dec - 05 Jan	Air Canada
17 Dec - 11 Jan	Air Canada
22 Dec - 09 Jan	Air Canada
17 Dec - 27 Jan	Iberia
11 Dec - 17 Jan	Iberia

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 705€

Return flights