Cheapest return flights from Cologne to Istanbul in September from $154

Best time to book flights for Cologne (CGN) to Istanbul (SAW) flights at AirHint

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

Return flights

15 Sep - 22 Sep Pegasus Airlines direct
16 Sep - 24 Sep Pegasus Airlines direct
24 Sep - 29 Sep Pegasus Airlines direct
16 Sep - 18 Sep Pegasus Airlines direct
08 Sep - 24 Sep Pegasus Airlines direct
10 Sep - 17 Sep Pegasus Airlines direct
09 Sep - 24 Sep Pegasus Airlines direct
15 Sep - 19 Sep Pegasus Airlines direct
08 Sep - 19 Sep Pegasus Airlines direct
01 Sep - 16 Sep Pegasus Airlines direct
23 Sep - 01 Oct Pegasus Airlines direct
07 Sep - 06 Oct Pegasus Airlines direct
22 Sep - 02 Oct Pegasus Airlines direct
29 Sep - 06 Oct Pegasus Airlines direct
18 Sep - 03 Oct Pegasus Airlines direct
27 Sep - 05 Oct AJet direct
20 Sep - 12 Oct Pegasus Airlines direct
15 Sep - 04 Oct AJet direct
06 Sep - 05 Oct AJet direct
30 Sep - 11 Oct Ryanair

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

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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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