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

Return flights

24 Sep - 20 Oct	Pegasus Airlines
20 Sep - 06 Oct	Pegasus Airlines
25 Sep - 09 Oct	Pegasus Airlines
19 Sep - 30 Sep	Pegasus Airlines
23 Sep - 20 Oct	AJet
18 Sep - 30 Sep	Pegasus Airlines
27 Sep - 12 Oct	AJet
17 Sep - 30 Sep	AJet
18 Sep - 05 Oct	AJet
26 Sep - 10 Oct	Pegasus Airlines
26 Sep - 09 Oct	Pegasus Airlines
27 Sep - 10 Oct	Pegasus Airlines
27 Sep - 09 Oct	Pegasus Airlines
18 Sep - 28 Sep	Pegasus Airlines
17 Sep - 24 Sep	Pegasus Airlines
19 Sep - 26 Sep	Pegasus Airlines
20 Sep - 27 Sep	Pegasus 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 449€

Return flights