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

Return flights

01 Dec - 30 Dec	Porter Airlines (Canada) Ltd
01 Dec - 18 Dec	Turkish Airlines
27 Dec - 31 Jan	Cathay Pacific
31 Dec - 22 Jan	Emirates
26 Dec - 24 Jan	Cathay Pacific
26 Dec - 23 Jan	Cathay Pacific
23 Dec - 20 Jan	Turkish Airlines
20 Dec - 10 Jan	Air Transat
03 Dec - 29 Dec	Emirates
19 Dec - 17 Jan	Air India
23 Dec - 21 Jan	Emirates
12 Dec - 13 Jan	Qatar Airways
12 Dec - 10 Jan	Qatar Airways

Also check the deals for one-way flights from Toronto to Kathmandu in December.

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 December from $1511

Return flights