AirHint found the following cheapest return flights from San Diego (SAN) to Dublin (DUB) in December 2025 (see full year).
Return flights
| 09 Dec - 16 Dec | KLM | ||
| 12 Dec - 17 Dec | KLM | ||
| 24 Dec - 11 Jan | Delta | ||
| 02 Dec - 27 Dec | KLM | ||
| 26 Dec - 06 Jan | Iberia | ||
| 23 Dec - 31 Dec | Air Canada | ||
| 28 Dec - 05 Jan | British Airways | ||
| 20 Dec - 10 Jan | Frontier Airlines |
Also check the deals for one-way flights from San Diego to Dublin in December.
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