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

Return flights

20 Dec - 09 Jan	Air China
01 Dec - 06 Jan	Air China
17 Dec - 19 Jan	Air China
01 Dec - 03 Jan	Air China
12 Dec - 09 Jan	Air China
01 Dec - 19 Dec	Air China
13 Dec - 16 Dec	Air China
03 Dec - 17 Dec	Air China
18 Dec - 23 Dec	Air China
16 Dec - 18 Dec	Air China
09 Dec - 16 Dec	Air China
04 Dec - 15 Jan	Air China
05 Dec - 15 Jan	Air China
06 Dec - 16 Jan	Air China
07 Dec - 15 Jan	Air China
08 Dec - 15 Jan	Air China
15 Dec - 20 Dec	Air China
20 Dec - 26 Dec	Air China
06 Dec - 08 Dec	Cathay Pacific
06 Dec - 09 Dec	Cathay Pacific

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 $425

Return flights