AirHint found the following cheapest return flights from London (LCY) to Taipei (TPE) in September 2025 (see full year).

Return flights

03 Sep - 18 Sep	KLM
05 Sep - 12 Sep	KLM
12 Sep - 21 Sep	KLM
12 Sep - 23 Sep	KLM
01 Sep - 21 Sep	KLM
03 Sep - 14 Sep	KLM
25 Sep - 06 Oct	SWISS
08 Sep - 16 Sep	KLM
18 Sep - 21 Sep	KLM
29 Sep - 06 Oct	KLM
01 Sep - 18 Sep	KLM
25 Sep - 07 Oct	SWISS
25 Sep - 05 Oct	KLM
06 Sep - 21 Sep	KLM
24 Sep - 08 Oct	KLM
30 Sep - 12 Oct	Lufthansa
27 Sep - 12 Oct	SWISS
27 Sep - 06 Oct	SWISS
23 Sep - 14 Oct	KLM
26 Sep - 06 Oct	SWISS

Also check the deals for one-way flights from London to Taipei 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 London to Taipei in September from 743€

Return flights