Cheapest return flights from Ontario to Dublin in October from $471

Best time to book flights for Ontario (ONT) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to Dublin (DUB) in October 2025 (see full year).

Return flights

21 Oct - 04 Nov Iberia
22 Oct - 05 Nov Iberia
30 Oct - 06 Nov Iberia
27 Oct - 05 Nov Iberia
14 Oct - 05 Nov Iberia
22 Oct - 29 Oct Iberia
07 Oct - 14 Oct Iberia
31 Oct - 07 Nov Iberia
11 Oct - 26 Oct Iberia
21 Oct - 26 Oct Iberia
21 Oct - 27 Oct Iberia
09 Oct - 16 Oct Iberia
02 Oct - 09 Oct Iberia
02 Oct - 10 Oct Iberia
03 Oct - 10 Oct Iberia
05 Oct - 12 Oct Iberia

Also check the deals for one-way flights from Ontario to Dublin in October.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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