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

Return flights

03 Dec - 27 Jan	Air China
19 Dec - 20 Jan	Air China
03 Dec - 11 Jan	Air China
18 Dec - 28 Jan	Air China
04 Dec - 11 Dec	Air China
11 Dec - 16 Dec	Air China
03 Dec - 13 Dec	Air China
09 Dec - 16 Dec	Air China
16 Dec - 19 Jan	Air China
12 Dec - 22 Jan	Air China
20 Dec - 27 Dec	Air China
18 Dec - 23 Dec	Air China
14 Dec - 24 Dec	Air China
14 Dec - 25 Dec	Air China
18 Dec - 18 Jan	Air China
09 Dec - 19 Dec	Air China
13 Dec - 27 Dec	Air China
22 Dec - 20 Jan	Air China
12 Dec - 05 Jan	Air China
10 Dec - 05 Jan	Air China

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 347€

Return flights