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

Return flights

19 Aug - 24 Aug	Xiamen Airlines
26 Aug - 02 Sep	Xiamen Airlines
18 Aug - 31 Aug	Xiamen Airlines
10 Aug - 16 Aug	Xiamen Airlines
06 Aug - 11 Aug	Xiamen Airlines
06 Aug - 16 Aug	Xiamen Airlines
20 Aug - 25 Aug	Xiamen Airlines
18 Aug - 24 Aug	Xiamen Airlines
06 Aug - 17 Aug	Xiamen Airlines
21 Aug - 28 Aug	Xiamen Airlines
12 Aug - 18 Aug	Xiamen Airlines
30 Aug - 01 Sep	ANA
27 Aug - 01 Sep	ANA
26 Aug - 03 Sep	ANA
30 Aug - 04 Sep	ANA
30 Aug - 05 Sep	ANA
31 Aug - 05 Sep	ANA
26 Aug - 01 Sep	ANA
28 Aug - 03 Sep	ANA
31 Aug - 06 Sep	ANA

Also check the deals for one-way flights from Taipei 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 Taipei to Osaka in August from $312

Return flights