AirHint found the following cheapest return flights from Toronto (YTZ) to Dublin (DUB) in September 2026 (see full year).

Return flights

02 Sep - 07 Sep	Air Canada
07 Sep - 14 Sep	Air Canada
03 Sep - 10 Sep	Air Canada
02 Sep - 09 Sep	Air Canada
04 Sep - 19 Sep	Air Canada
16 Sep - 22 Sep	Air Canada
04 Sep - 11 Sep	Air Canada
05 Sep - 12 Sep	Air Canada
29 Sep - 13 Oct	United
08 Sep - 02 Oct	Porter Airlines (Canada) Ltd
15 Sep - 30 Sep	Porter Airlines (Canada) Ltd
15 Sep - 25 Sep	Porter Airlines (Canada) Ltd
19 Sep - 02 Oct	United

Also check the deals for one-way flights from Toronto to Dublin in September.

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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Cheapest return flights from Toronto to Dublin in September from 516€

Return flights