AirHint found the following cheapest return flights from Berlin (BER) to Cologne (CGN) in September 2025 (see full year).

Return flights

27 Sep - 28 Sep	Eurowings	direct
27 Sep - 27 Sep	Eurowings
29 Sep - 03 Oct	Eurowings	direct
27 Sep - 30 Sep	Eurowings
29 Sep - 01 Oct	Eurowings
24 Sep - 28 Sep	Ryanair
30 Sep - 02 Oct	Eurowings	direct
24 Sep - 28 Sep	Eurowings	direct
25 Sep - 28 Sep	easyJet
29 Sep - 01 Oct	Eurowings	direct
20 Sep - 26 Sep	Eurowings	direct
26 Sep - 28 Sep	easyJet
20 Sep - 21 Sep	Eurowings	direct
20 Sep - 20 Sep	Eurowings
30 Sep - 01 Oct	Eurowings	direct
26 Sep - 03 Oct	Eurowings	direct

Also check the deals for one-way flights from Berlin to Cologne 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.

Book a cheap hotel in Cologne

Cheap car rent in Cologne

Cheapest return flights from Berlin to Cologne in September from $151

Return flights