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

Return flights

01 Sep - 09 Sep	Asiana Airlines
17 Sep - 24 Sep	HK Express
17 Sep - 23 Sep	Scoot
01 Sep - 11 Sep	Asiana Airlines
15 Sep - 17 Sep	Hainan Airlines
05 Sep - 17 Sep	Hainan Airlines
08 Sep - 17 Sep	Hainan Airlines
08 Sep - 13 Sep	Hainan Airlines
08 Sep - 15 Sep	Hainan Airlines
18 Sep - 25 Sep	HK Express
23 Sep - 07 Oct	Greater Bay Airlines
19 Sep - 13 Oct	Scoot
19 Sep - 03 Oct	Scoot
28 Sep - 02 Oct	Scoot
28 Sep - 08 Oct	Scoot
22 Sep - 04 Oct	Vietnam Airlines
24 Sep - 01 Oct	AirAsia X
29 Sep - 08 Oct	Thai VietJet Air
29 Sep - 07 Oct	Thai VietJet Air
16 Sep - 15 Oct	Scoot

Also check the deals for one-way flights from Taipei to Barcelona 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 Barcelona in September from $741

Return flights