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

Return flights

01 Dec - 07 Dec	Ryanair
04 Dec - 11 Dec	Ryanair
01 Dec - 14 Dec	Ryanair
01 Dec - 04 Dec	Delta
29 Dec - 27 Jan	Delta
29 Dec - 26 Jan	Delta
28 Dec - 16 Jan	Delta
26 Dec - 18 Jan	Delta
07 Dec - 21 Dec	Ryanair
04 Dec - 17 Dec	Ryanair
15 Dec - 19 Jan	Air Canada
27 Dec - 16 Jan	Delta
01 Dec - 13 Jan	Ryanair
15 Dec - 21 Jan	Aer Lingus
31 Dec - 16 Jan	Ryanair
30 Dec - 16 Jan	Ryanair
15 Dec - 22 Dec	Air Canada
05 Dec - 31 Dec	Ryanair
11 Dec - 23 Dec	Vueling Airlines
11 Dec - 18 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 843€

Return flights