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

Return flights

20 Dec - 17 Jan	Air China
22 Dec - 12 Jan	Air China
15 Dec - 05 Jan	Air China
02 Dec - 08 Dec	Air China
02 Dec - 06 Dec	Air China
10 Dec - 17 Dec	Air China
11 Dec - 18 Dec	Air China
19 Dec - 13 Jan	Air China
11 Dec - 16 Jan	Air China
12 Dec - 09 Jan	China Southern
07 Dec - 15 Dec	China Southern
03 Dec - 09 Dec	China Southern
04 Dec - 08 Dec	China Southern
06 Dec - 08 Dec	China Southern
01 Dec - 08 Dec	China Southern
11 Dec - 15 Dec	China Southern
06 Dec - 06 Jan	China Southern
14 Dec - 08 Jan	China Southern
15 Dec - 07 Jan	China Southern
17 Dec - 09 Jan	China Southern

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 349€

Return flights