AirHint found the following cheapest return flights from Delhi (DEL) to Toronto (YYZ) in September 2025 (see full year).

Return flights

26 Sep - 30 Sep	Air Canada
26 Sep - 08 Oct	Air Canada
19 Sep - 14 Oct	Air Canada
19 Sep - 30 Sep	Air Canada
10 Sep - 17 Sep	KLM
15 Sep - 15 Oct	Air Canada
19 Sep - 05 Oct	Air Canada
29 Sep - 28 Oct	Etihad Airways
24 Sep - 01 Oct	Etihad Airways
29 Sep - 29 Oct	Etihad Airways
21 Sep - 29 Sep	Etihad Airways
24 Sep - 29 Sep	Etihad Airways
24 Sep - 30 Sep	Etihad Airways
21 Sep - 28 Oct	Etihad Airways
19 Sep - 19 Oct	Air Canada
17 Sep - 27 Sep	Air Canada
18 Sep - 05 Oct	Air Canada
15 Sep - 21 Sep	Air Canada
12 Sep - 23 Sep	Virgin Atlantic
12 Sep - 26 Sep	Virgin Atlantic

Also check the deals for one-way flights from Delhi to Toronto 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 Delhi to Toronto in September from 630€

Return flights