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

Return flights

02 Dec - 17 Dec	Biman Bangladesh Airlines
01 Dec - 17 Dec	Air India
06 Dec - 10 Jan	Air India
01 Dec - 13 Dec	Turkish Airlines
31 Dec - 11 Jan	Air India
29 Dec - 10 Jan	Air India
15 Dec - 15 Jan	Air India
18 Dec - 28 Dec	Air India
15 Dec - 27 Dec	Air India
18 Dec - 31 Dec	Air India
18 Dec - 01 Jan	Air India
18 Dec - 05 Jan	Air India
24 Dec - 24 Jan	Air India
24 Dec - 28 Dec	Air India
20 Dec - 10 Jan	Air India
19 Dec - 04 Jan	Air India
24 Dec - 04 Jan	Air India

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 $1405

Return flights