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

Return flights

13 Sep - 27 Sep	China Eastern
19 Sep - 21 Sep	China Eastern
04 Sep - 08 Sep	Xiamen Airlines
15 Sep - 20 Sep	Xiamen Airlines
03 Sep - 10 Sep	Xiamen Airlines
01 Sep - 04 Sep	Uni Air
02 Sep - 09 Sep	Uni Air
25 Sep - 02 Oct	Uni Air
18 Sep - 25 Sep	Uni Air
16 Sep - 25 Sep	Uni Air
09 Sep - 11 Sep	Uni Air
30 Sep - 12 Oct	ANA
26 Sep - 13 Oct	ANA
30 Sep - 14 Oct	ANA
30 Sep - 07 Oct	ANA
26 Sep - 02 Oct	ANA
30 Sep - 08 Oct	ANA
30 Sep - 09 Oct	ANA
25 Sep - 05 Oct	ANA
25 Sep - 06 Oct	ANA

Also check the deals for one-way flights from Taipei to Bangkok 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 Bangkok in September from 269€

Return flights