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

Return flights

30 Sep - 07 Oct	Porter Airlines (Canada) Ltd
24 Sep - 01 Oct	Air France
25 Sep - 02 Oct	Air France
30 Sep - 14 Oct	Porter Airlines (Canada) Ltd
25 Sep - 22 Oct	Air France
25 Sep - 09 Oct	Air France
23 Sep - 07 Oct	Delta
24 Sep - 08 Oct	Delta
24 Sep - 04 Oct	Air France
21 Sep - 31 Oct	Air France
21 Sep - 30 Sep	Air France
22 Sep - 29 Sep	Air Canada
23 Sep - 30 Sep	Air Canada
18 Sep - 29 Sep	Delta
21 Sep - 28 Sep	Air Canada
20 Sep - 27 Sep	Air Canada
18 Sep - 25 Sep	Air Canada
19 Sep - 30 Sep	Air Canada
19 Sep - 26 Sep	Air France
26 Sep - 28 Sep	FrenchBee

Also check the deals for one-way flights from Montreal to Delhi 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 Montreal to Delhi in September from $955

Return flights