AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Dublin (DUB) in March 2026 (see full year).
One-Way flights
| 24 Mar | Frontier Airlines | ||
| 01 Mar | Frontier Airlines | ||
| 24 Mar | Aer Lingus | direct | |
| 14 Mar | Frontier Airlines | ||
| 01 Mar | Aer Lingus | direct | |
| 14 Mar | Aer Lingus | direct |
Also check the deals for return flights from Philadelphia to Dublin in March.
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