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

Return flights

09 Aug - 21 Aug	Thai AirAsia
18 Aug - 21 Aug	Thai AirAsia
05 Aug - 21 Aug	Thai AirAsia
19 Aug - 21 Aug	Thai AirAsia
06 Aug - 21 Aug	Thai AirAsia
22 Aug - 30 Aug	Thai AirAsia
29 Aug - 30 Aug	Thai AirAsia
27 Aug - 30 Aug	Thai AirAsia
04 Aug - 21 Aug	Thai AirAsia
10 Aug - 21 Aug	Thai AirAsia
22 Aug - 08 Sep	Thai AirAsia
22 Aug - 01 Sep	Thai AirAsia
29 Aug - 08 Sep	Thai AirAsia
29 Aug - 15 Sep	Thai AirAsia
29 Aug - 01 Sep	Thai AirAsia
27 Aug - 08 Sep	Thai AirAsia
27 Aug - 15 Sep	Thai AirAsia
27 Aug - 01 Sep	Thai AirAsia
29 Aug - 17 Sep	Thai AirAsia
22 Aug - 11 Sep	Thai AirAsia

Also check the deals for one-way flights from Kathmandu to Osaka 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 Kathmandu to Osaka in August from 379€

Return flights