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	Ryanair
06 Sep - 26 Oct	Ryanair
22 Sep - 01 Oct	Eurowings
23 Sep - 10 Oct	Ryanair
25 Sep - 13 Oct	Eurowings
24 Sep - 05 Oct	Ryanair
15 Sep - 25 Sep	AJet
09 Sep - 21 Sep	Pegasus Airlines
07 Sep - 27 Sep	Eurowings
15 Sep - 28 Sep	AJet
12 Sep - 26 Sep	Turkish Airlines
24 Sep - 08 Oct	Turkish Airlines
25 Sep - 07 Oct	Turkish Airlines
16 Sep - 29 Sep	Turkish Airlines
15 Sep - 30 Sep	Turkish Airlines
18 Sep - 03 Oct	Turkish Airlines
15 Sep - 06 Oct	Turkish Airlines
08 Sep - 19 Sep	Turkish Airlines
12 Sep - 27 Sep	Turkish Airlines
06 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 526€

Return flights