AirHint found the following cheapest one-way flights from Taipei (TSA) to Kathmandu (KTM) in September 2025 (see full year).

One-Way flights

08 Sep	China Eastern
01 Sep	Sichuan Airlines
06 Sep	China Eastern
09 Sep	China Eastern
19 Sep	Shanghai Airlines
13 Sep	Shanghai Airlines
21 Sep	China Eastern
29 Sep	Sichuan Airlines
24 Sep	Xiamen Airlines

Also check the deals for return flights from Taipei 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 one-way flights from Taipei to Kathmandu in September from 288€

One-Way flights