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

Return flights

03 Sep - 10 Sep	Hainan Airlines
03 Sep - 13 Sep	Hainan Airlines
01 Sep - 08 Sep	Hainan Airlines
10 Sep - 15 Sep	Hainan Airlines
08 Sep - 23 Sep	Hainan Airlines
10 Sep - 23 Sep	HK Express
21 Sep - 29 Sep	Philippines AirAsia Inc.
14 Sep - 01 Oct	China Airlines
25 Sep - 04 Oct	AirAsia X
10 Sep - 19 Sep	Hainan Airlines
13 Sep - 30 Sep	China Airlines
23 Sep - 07 Oct	AirAsia X
25 Sep - 02 Oct	AirAsia X
16 Sep - 30 Sep	HK Express
29 Sep - 06 Oct	AirAsia X
23 Sep - 03 Oct	AirAsia X
20 Sep - 04 Oct	China Airlines
26 Sep - 03 Oct	Batik Air Malaysia
26 Sep - 04 Oct	AirAsia X
03 Sep - 09 Oct	Hainan Airlines

Also check the deals for one-way flights from Taipei to Keflavik 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 Keflavik in September from 857€

Return flights