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

Return flights

30 Sep - 19 Oct	Ryanair
30 Sep - 02 Oct	Ryanair
24 Sep - 02 Oct	Ryanair
30 Sep - 01 Oct	Ryanair
30 Sep - 04 Oct	Ryanair
24 Sep - 30 Sep	easyJet
24 Sep - 01 Oct	Ryanair
18 Sep - 25 Sep	Ryanair
18 Sep - 30 Sep	Ryanair
24 Sep - 04 Oct	Ryanair
18 Sep - 23 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
18 Sep - 22 Sep	Ryanair
16 Sep - 22 Sep	Ryanair
18 Sep - 05 Oct	Ryanair
16 Sep - 24 Sep	Ryanair
18 Sep - 24 Sep	Ryanair
27 Sep - 30 Sep	Brussels Airlines
27 Sep - 01 Oct	Brussels Airlines
30 Sep - 05 Oct	Ryanair

Also check the deals for one-way flights from Madrid to Copenhagen 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 Madrid to Copenhagen in September from 144€

Return flights