AirHint found the following cheapest return flights from Ottawa (YOW) to Mumbai (BOM) in October 2025 (see full year).

Return flights

20 Oct - 14 Nov	Air Canada
24 Oct - 22 Nov	Air Canada
30 Oct - 18 Nov	Air France
17 Oct - 24 Nov	Porter Airlines (Canada) Ltd
11 Oct - 31 Oct	Air Transat
16 Oct - 03 Nov	Porter Airlines (Canada) Ltd
16 Oct - 04 Nov	Porter Airlines (Canada) Ltd
18 Oct - 07 Nov	Porter Airlines (Canada) Ltd
22 Oct - 22 Nov	Porter Airlines (Canada) Ltd
17 Oct - 03 Nov	Porter Airlines (Canada) Ltd
10 Oct - 25 Oct	Porter Airlines (Canada) Ltd
10 Oct - 14 Nov	Air France

Also check the deals for one-way flights from Ottawa to Mumbai in October.

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 Ottawa to Mumbai in October from $970

Return flights