Cheapest return flights from Ontario to Dublin in January from $637

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

Return flights

21 Jan - 27 Jan British Airways
21 Jan - 28 Jan British Airways
14 Jan - 19 Jan British Airways
21 Jan - 29 Jan British Airways
19 Jan - 26 Jan British Airways
14 Jan - 29 Jan British Airways
27 Jan - 07 Feb British Airways
29 Jan - 02 Feb British Airways
15 Jan - 19 Jan British Airways
16 Jan - 31 Jan British Airways
22 Jan - 29 Jan British Airways
29 Jan - 04 Feb British Airways
13 Jan - 09 Feb British Airways
07 Jan - 19 Jan British Airways
10 Jan - 02 Feb British Airways

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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