AirHint found the following cheapest return flights from Ontario (ONT) to Dublin (DUB) in October 2026 (see full year).
Return flights
| 14 Oct - 20 Oct | Iberia | ||
| 25 Oct - 01 Nov | Air France | ||
| 10 Oct - 17 Oct | Iberia |
Also check the deals for one-way flights from Ontario to Dublin in October.
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