AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Dublin (DUB) in January 2026 (see full year).
One-Way flights
| 12 Jan | Frontier Airlines | ||
| 19 Jan | Frontier Airlines | ||
| 23 Jan | Frontier Airlines | ||
| 19 Jan | Iberia | direct | |
| 01 Jan | jetBlue | ||
| 01 Jan | Aer Lingus | direct |
Also check the deals for return flights from Philadelphia to Dublin in January.
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