AirHint found the following cheapest return flights from Dublin (DUB) to Philadelphia (PHL) in October 2026 (see full year).
Return flights
| 01 Oct - 08 Oct | Iberia | direct | |
| 08 Oct - 12 Oct | Aer Lingus | direct | |
| 08 Oct - 13 Oct | Finnair | direct | |
| 23 Oct - 01 Nov | Delta | ||
| 23 Oct - 01 Nov | Aer Lingus | direct | |
| 23 Oct - 27 Oct | Aer Lingus | direct |
Also check the deals for one-way flights from Dublin to Philadelphia in October.
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