AirHint found the following cheapest return flights from Taipei (TSA) to Osaka (KIX) in September 2025 (see full year).

Return flights

08 Sep - 12 Sep	Xiamen Airlines
14 Sep - 18 Sep	Xiamen Airlines
09 Sep - 13 Sep	Xiamen Airlines
04 Sep - 08 Sep	Xiamen Airlines
20 Sep - 23 Sep	Xiamen Airlines
20 Sep - 22 Sep	Xiamen Airlines
12 Sep - 14 Sep	Xiamen Airlines
18 Sep - 25 Sep	Xiamen Airlines
04 Sep - 13 Sep	Xiamen Airlines
16 Sep - 20 Sep	Xiamen Airlines
24 Sep - 01 Oct	Xiamen Airlines
25 Sep - 01 Oct	Xiamen Airlines
25 Sep - 13 Oct	Xiamen Airlines
30 Sep - 09 Oct	ANA
30 Sep - 07 Oct	ANA
05 Sep - 05 Oct	ANA
30 Sep - 04 Oct	ANA
30 Sep - 08 Oct	ANA
03 Sep - 30 Oct	ANA
01 Sep - 01 Oct	ANA

Also check the deals for one-way flights from Taipei to Osaka 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 Taipei to Osaka in September from 242€

Return flights