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

Return flights

31 Aug - 16 Sep	China Eastern
20 Aug - 27 Sep	China Eastern
15 Aug - 23 Aug	China Eastern
18 Aug - 23 Aug	China Eastern
19 Aug - 23 Aug	China Eastern
23 Aug - 28 Aug	StarFlyer
23 Aug - 30 Sep	StarFlyer
03 Aug - 04 Aug	StarFlyer
05 Aug - 09 Aug	StarFlyer
23 Aug - 27 Aug	StarFlyer
05 Aug - 08 Aug	Air India
02 Aug - 05 Aug	Air India
02 Aug - 19 Aug	Air India
02 Aug - 02 Sep	Air India
30 Aug - 06 Sep	Air India
25 Aug - 01 Sep	Air India
27 Aug - 05 Sep	Air India
27 Aug - 02 Sep	Air India
28 Aug - 03 Sep	Air India
27 Aug - 01 Sep	Air India

Also check the deals for one-way flights from Tokyo to Kathmandu in August.

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 August from 236€

Return flights