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

Return flights

19 Dec - 09 Jan	Ryanair	direct
26 Dec - 09 Jan	Ryanair	direct
19 Dec - 07 Jan	Ryanair
12 Dec - 14 Dec	Ryanair
19 Dec - 11 Jan	Ryanair
19 Dec - 10 Jan	Ryanair
19 Dec - 05 Jan	Ryanair
19 Dec - 06 Jan	Ryanair
19 Dec - 08 Jan	Ryanair
19 Dec - 04 Jan	Ryanair
19 Dec - 04 Jan	Ryanair	direct
04 Dec - 09 Dec	Vueling Airlines
01 Dec - 08 Dec	Vueling Airlines
07 Dec - 18 Dec	Ryanair	direct
06 Dec - 09 Dec	Ryanair
07 Dec - 28 Dec	Ryanair	direct
19 Dec - 28 Dec	Ryanair	direct
07 Dec - 26 Dec	Ryanair	direct
19 Dec - 26 Dec	Ryanair	direct
26 Dec - 28 Dec	Ryanair	direct

Also check the deals for one-way flights from Santander to Dublin 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Santander to Dublin in December from 109€

Return flights