AirHint found the following cheapest return flights from Fukuoka (FUK) to Kathmandu (KTM) in September 2025 (see full year).

Return flights

02 Sep - 04 Oct	Thai VietJet Air
17 Sep - 31 Oct	China Eastern
04 Sep - 04 Oct	Thai VietJet Air
03 Sep - 05 Oct	China Eastern
03 Sep - 04 Oct	China Eastern
10 Sep - 15 Sep	China Eastern
27 Sep - 25 Oct	Air China
05 Sep - 08 Sep	Cathay Pacific
22 Sep - 27 Oct	Thai AirAsia
10 Sep - 17 Sep	Cathay Pacific
10 Sep - 14 Sep	HK Express
15 Sep - 08 Oct	Cathay Pacific
27 Sep - 28 Sep	Cathay Pacific
28 Sep - 07 Oct	Cathay Pacific
30 Sep - 28 Oct	Thai Airways

Also check the deals for one-way flights from Fukuoka to Kathmandu in September.

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 Fukuoka to Kathmandu in September from 440€

Return flights