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

Return flights

23 Sep - 25 Sep	Ryanair
30 Sep - 03 Oct	Ryanair
29 Sep - 09 Oct	Ryanair
29 Sep - 01 Oct	Ryanair
29 Sep - 02 Oct	Ryanair
29 Sep - 03 Oct	Ryanair
29 Sep - 09 Oct	Norwegian Air Sweden AOC	direct
29 Sep - 04 Oct	Ryanair
28 Sep - 01 Oct	Scandinavian Airlines	direct
29 Sep - 04 Oct	Norwegian Air Sweden AOC	direct
23 Sep - 26 Sep	Ryanair
27 Sep - 09 Oct	Vueling Airlines	direct
22 Sep - 25 Sep	Vueling Airlines	direct
23 Sep - 25 Sep	Vueling Airlines	direct
24 Sep - 26 Sep	Ryanair
25 Sep - 26 Sep	Vueling Airlines	direct
29 Sep - 30 Sep	Ryanair
23 Sep - 27 Sep	Ryanair
24 Sep - 30 Sep	Ryanair
30 Sep - 30 Sep	Ryanair

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Barcelona in September from 114€

Return flights