AirHint found the following cheapest return flights from Toronto (YYZ) to Kathmandu (KTM) in October 2025 (see full year).

Return flights

04 Oct - 18 Oct	WestJet
06 Oct - 21 Oct	WestJet
18 Oct - 15 Nov	WestJet
16 Oct - 12 Nov	Porter Airlines (Canada) Ltd
08 Oct - 15 Oct	WestJet
07 Oct - 14 Oct	WestJet
02 Oct - 05 Nov	Air Transat
16 Oct - 21 Nov	Air Transat
24 Oct - 12 Nov	Air Transat
07 Oct - 04 Nov	WestJet
02 Oct - 12 Nov	Air Transat
06 Oct - 31 Oct	WestJet
04 Oct - 11 Oct	WestJet
02 Oct - 16 Oct	Air Transat
21 Oct - 24 Oct	WestJet
04 Oct - 24 Oct	WestJet
12 Oct - 24 Oct	WestJet
10 Oct - 09 Nov	Air Transat
15 Oct - 08 Nov	WestJet
05 Oct - 05 Nov	Air Canada

Also check the deals for one-way flights from Toronto to Kathmandu 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 Toronto to Kathmandu in October from $1118

Return flights