AirHint found the following cheapest return flights from San Sebastian (EAS) to Dublin (DUB) in December 2025 (see full year).
Return flights
| 13 Dec - 16 Dec | Iberia | ||
| 02 Dec - 06 Dec | Iberia | ||
| 11 Dec - 14 Dec | Iberia | ||
| 14 Dec - 17 Dec | Iberia | ||
| 12 Dec - 15 Dec | Iberia | ||
| 06 Dec - 09 Dec | Iberia | ||
| 12 Dec - 14 Dec | Iberia | ||
| 29 Dec - 04 Jan | Iberia |
Also check the deals for one-way flights from San Sebastian to Dublin in December.
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