Cheapest return flights from Istanbul to Cologne in September from $76

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

Return flights

17 Sep - 18 Sep Pegasus Airlines direct
16 Sep - 18 Sep Pegasus Airlines direct
16 Sep - 17 Sep Pegasus Airlines direct
16 Sep - 23 Sep Pegasus Airlines direct
17 Sep - 23 Sep Pegasus Airlines direct
16 Sep - 24 Sep Pegasus Airlines direct
05 Sep - 12 Sep AJet direct
16 Sep - 19 Sep Pegasus Airlines direct
18 Sep - 20 Sep Pegasus Airlines direct
17 Sep - 20 Sep Pegasus Airlines direct
27 Sep - 22 Oct AJet direct
23 Sep - 22 Oct AJet direct
19 Sep - 04 Oct AJet direct
24 Sep - 03 Oct AJet direct
27 Sep - 05 Oct AJet direct
24 Sep - 23 Oct AJet direct
24 Sep - 22 Oct AJet direct
24 Sep - 02 Oct AJet direct
24 Sep - 01 Oct AJet direct
30 Sep - 08 Oct AJet

Also check the deals for one-way flights from Istanbul to Cologne in September.

Skyscanner

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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