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

Return flights

13 Sep - 26 Sep	Xiamen Airlines
25 Sep - 05 Oct	Japan Airlines
26 Sep - 07 Oct	Japan Airlines
26 Sep - 09 Oct	Japan Airlines
24 Sep - 05 Oct	Japan Airlines
19 Sep - 04 Oct	Japan Airlines
26 Sep - 04 Oct	Japan Airlines
19 Sep - 01 Oct	Japan Airlines
19 Sep - 29 Sep	Japan Airlines
26 Sep - 11 Oct	Japan Airlines
26 Sep - 08 Oct	Japan Airlines
26 Sep - 03 Oct	Japan Airlines
01 Sep - 30 Sep	Japan Airlines
01 Sep - 11 Sep	Japan Airlines
05 Sep - 13 Sep	Japan Airlines
05 Sep - 20 Sep	Japan Airlines
12 Sep - 28 Sep	Japan Airlines
05 Sep - 16 Sep	Japan Airlines
05 Sep - 14 Sep	Japan Airlines
17 Sep - 27 Sep	Japan Airlines

Also check the deals for one-way flights from Taipei to Oslo 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 Oslo in September from 1358€

Return flights