Cheapest return flights from Ontario to Dublin in January from $565

AirHint found the following cheapest return flights from Ontario (ONT) to Dublin (DUB) in January 2026 (see full year).

Return flights

05 Jan - 31 Jan Frontier Airlines
14 Jan - 23 Jan British Airways
01 Jan - 08 Jan British Airways
01 Jan - 07 Jan Iberia
02 Jan - 15 Jan British Airways
02 Jan - 22 Jan British Airways
02 Jan - 09 Jan British Airways
02 Jan - 08 Jan Alaska Airlines
02 Jan - 07 Jan Iberia

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

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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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