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

Return flights

29 Sep - 12 Oct	Ryanair
25 Sep - 29 Sep	Pegasus Airlines
06 Sep - 20 Sep	AJet
13 Sep - 20 Sep	AJet
30 Sep - 12 Oct	AJet
09 Sep - 24 Sep	AJet
07 Sep - 20 Sep	AJet
08 Sep - 20 Sep	AJet
10 Sep - 08 Oct	AJet
19 Sep - 26 Sep	Pegasus Airlines
24 Sep - 09 Oct	AJet
07 Sep - 19 Sep	AJet
08 Sep - 19 Sep	AJet
11 Sep - 06 Oct	AJet
10 Sep - 09 Oct	AJet
10 Sep - 06 Oct	AJet
01 Sep - 15 Sep	Wizz Air

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Colombo in September from $550

Return flights