AirHint found the following cheapest one-way flights from Dublin (DUB) to Philadelphia (PHL) in September 2026 (see full year).
One-Way flights
| 12 Sep | British Airways | ||
| 24 Sep | British Airways | ||
| 12 Sep | Finnair | direct | |
| 24 Sep | Finnair | direct | |
| 18 Sep | Delta |
Also check the deals for return flights from Dublin to Philadelphia in September.
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