AirHint found the following cheapest one-way flights from Portland (PDX) to Dublin (DUB) in September 2026 (see full year).
One-Way flights
| 13 Sep | Delta | ||
| 15 Sep | Delta | ||
| 20 Sep | Delta | ||
| 21 Sep | Delta | ||
| 16 Sep | Delta | ||
| 19 Sep | Delta | ||
| 17 Sep | Air Canada | ||
| 18 Sep | Air Canada | ||
| 02 Sep | Delta |
Also check the deals for return flights from Portland to Dublin in September.
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