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

Return flights

01 Dec - 04 Dec	Air China
06 Dec - 09 Dec	Air China
03 Dec - 09 Dec	Air China
13 Dec - 16 Dec	Air China
13 Dec - 15 Dec	Air China
01 Dec - 21 Dec	Air China
24 Dec - 16 Jan	Thai Airways
05 Dec - 09 Dec	Malaysia Airlines
26 Dec - 31 Dec	HK Express
23 Dec - 06 Jan	Thai Airways
17 Dec - 30 Dec	Cathay Pacific
24 Dec - 28 Dec	Cathay Pacific
24 Dec - 04 Jan	Cathay Pacific
29 Dec - 09 Jan	Thai Airways
14 Dec - 08 Jan	Thai Airways
25 Dec - 05 Jan	Thai Airways
27 Dec - 07 Jan	Air India
31 Dec - 02 Jan	Air India
24 Dec - 02 Jan	Air India
26 Dec - 02 Jan	Air India

Also check the deals for one-way flights from Tokyo 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 Tokyo to Kathmandu in December from $460

Return flights