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

Return flights

30 Sep - 03 Oct	Wizz Air
23 Sep - 01 Oct	Wizz Air
23 Sep - 08 Oct	Wizz Air	direct
23 Sep - 24 Sep	Wizz Air
23 Sep - 07 Oct	Wizz Air
23 Sep - 30 Sep	Wizz Air
30 Sep - 16 Oct	Wizz Air	direct
30 Sep - 08 Oct	Wizz Air	direct
30 Sep - 02 Oct	Wizz Air
28 Sep - 16 Oct	Wizz Air	direct
10 Sep - 12 Sep	Ryanair
28 Sep - 08 Oct	Wizz Air	direct
17 Sep - 24 Sep	Ryanair
30 Sep - 18 Oct	Wizz Air	direct
17 Sep - 19 Sep	Ryanair
30 Sep - 30 Sep	Wizz Air
23 Sep - 25 Sep	Wizz Air
17 Sep - 23 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
22 Sep - 24 Sep	Ryanair

Also check the deals for one-way flights from Katowice 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 Katowice to Barcelona in September from 101€

Return flights