AirHint found the following cheapest one-way flights from Klagenfurt (KLU) to Cologne (CGN) in October 2025 (see full year).

One-Way flights

02 Oct	Ryanair
03 Oct	Eurowings	direct
14 Oct	Ryanair
23 Oct	Ryanair
13 Oct	Eurowings	direct
06 Oct	Eurowings	direct
24 Oct	Eurowings	direct
20 Oct	Austrian Airlines
28 Oct	Austrian Airlines
20 Oct	Eurowings	direct

Also check the deals for return flights from Klagenfurt to Cologne in October.

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 one-way flights from Klagenfurt to Cologne in October from 76€

One-Way flights