AirHint found the following cheapest return flights from Pittsburgh (PIT) to Dublin (DUB) in September 2026 (see full year).
Return flights
| 01 Sep - 08 Sep | United | ||
| 02 Sep - 09 Sep | Air Canada | ||
| 30 Sep - 09 Oct | Aer Lingus | direct | |
| 04 Sep - 13 Sep | Air Canada | ||
| 21 Sep - 28 Sep | Air Canada | ||
| 21 Sep - 28 Sep | Aer Lingus | direct |
Also check the deals for one-way flights from Pittsburgh to Dublin in September.
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