AirHint found the following cheapest return flights from Jacksonville (JAX) to Dublin (DUB) in December 2025 (see full year).
Return flights
| 02 Dec - 09 Dec | Lufthansa | ||
| 08 Dec - 14 Dec | Lufthansa | ||
| 27 Dec - 15 Jan | American Airlines | ||
| 11 Dec - 21 Dec | Lufthansa | ||
| 01 Dec - 06 Dec | jetBlue | ||
| 17 Dec - 22 Dec | Aer Lingus |
Also check the deals for one-way flights from Jacksonville to Dublin in December.
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