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

Return flights

08 Dec - 28 Dec	Delta
04 Dec - 12 Dec	Iberia
05 Dec - 08 Jan	Air Canada
29 Dec - 15 Jan	Delta
29 Dec - 31 Jan	Delta
08 Dec - 08 Jan	Air Canada
08 Dec - 12 Jan	Air Canada
02 Dec - 16 Dec	Iberia
07 Dec - 16 Dec	Iberia
08 Dec - 21 Jan	Iberia
26 Dec - 17 Jan	Air Canada
15 Dec - 27 Dec	Delta
26 Dec - 08 Jan	Air Canada
05 Dec - 31 Dec	Vueling Airlines
22 Dec - 07 Jan	Air Canada
30 Dec - 12 Jan	Iberia
10 Dec - 17 Dec	Iberia
21 Dec - 28 Dec	Turkish Airlines
21 Dec - 27 Dec	Delta

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 $812

Return flights