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

Return flights

08 Dec - 24 Dec	Air Canada
28 Dec - 26 Jan	Delta
09 Dec - 14 Jan	Delta
10 Dec - 17 Dec	Air Canada
08 Dec - 13 Dec	Delta
29 Dec - 26 Jan	Delta
31 Dec - 22 Jan	Ryanair
29 Dec - 18 Jan	Ryanair
30 Dec - 17 Jan	Delta
23 Dec - 21 Jan	Ryanair
31 Dec - 17 Jan	Ryanair
31 Dec - 12 Jan	Ryanair
23 Dec - 20 Jan	Ryanair
09 Dec - 16 Dec	Ryanair
14 Dec - 22 Dec	Scandinavian Airlines
14 Dec - 31 Dec	Scandinavian Airlines
14 Dec - 28 Dec	Scandinavian Airlines
24 Dec - 29 Dec	Ryanair
23 Dec - 24 Dec	Aer Lingus
22 Dec - 28 Dec	Ryanair

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 763€

Return flights