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

Return flights

30 Sep - 07 Oct	Pegasus Airlines
23 Sep - 30 Sep	Pegasus Airlines
02 Sep - 09 Sep	Pegasus Airlines
25 Sep - 01 Oct	Pegasus Airlines
14 Sep - 22 Sep	Pegasus Airlines
15 Sep - 21 Sep	AJet
27 Sep - 06 Oct	AJet
27 Sep - 03 Oct	AJet
27 Sep - 04 Oct	AJet
13 Sep - 20 Sep	Pegasus Airlines
08 Sep - 20 Sep	Pegasus Airlines
01 Sep - 20 Sep	AJet
12 Sep - 19 Sep	AJet

Also check the deals for one-way flights from Cologne to Doha 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 Doha in September from $168

Return flights