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

Return flights

23 Sep - 06 Oct	AJet
24 Sep - 20 Oct	AJet
27 Sep - 19 Oct	Ryanair
28 Sep - 17 Oct	AJet
27 Sep - 17 Oct	AJet
28 Sep - 16 Oct	AJet
27 Sep - 16 Oct	AJet
26 Sep - 16 Oct	Pegasus Airlines
14 Sep - 12 Oct	AJet
02 Sep - 16 Sep	AJet
07 Sep - 26 Sep	Pegasus Airlines
10 Sep - 16 Sep	AJet
06 Sep - 21 Sep	AJet
06 Sep - 13 Sep	AJet
06 Sep - 20 Sep	AJet
28 Sep - 12 Oct	Turkish Airlines
10 Sep - 22 Sep	Turkish Airlines
09 Sep - 29 Sep	Turkish Airlines
15 Sep - 30 Sep	Turkish Airlines
09 Sep - 24 Sep	Turkish Airlines

Also check the deals for one-way flights from Cologne to Colombo 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 Cologne to Colombo in September from 492€

Return flights