AirHint found the following cheapest return flights from Portland (PDX) to Dublin (DUB) in August 2026 (see full year).
Return flights
| 26 Aug - 25 Sep | Icelandair | ||
| 31 Aug - 07 Sep | Air Canada | ||
| 30 Aug - 06 Sep | Air Canada | ||
| 12 Aug - 21 Aug | Delta | ||
| 07 Aug - 18 Aug | Lufthansa |
Also check the deals for one-way flights from Portland to Dublin in August.
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