AirHint found the following cheapest return flights from Cologne (CGN) to Istanbul (SAW) in January 2026 (see full year).

Return flights

23 Jan - 08 Feb	AJet	direct
22 Jan - 28 Jan	Pegasus Airlines	direct
22 Jan - 27 Jan	Pegasus Airlines	direct
12 Jan - 17 Jan	AJet	direct
15 Jan - 18 Jan	AJet	direct
08 Jan - 15 Jan	AJet	direct
01 Jan - 15 Jan	AJet	direct
16 Jan - 19 Jan	AJet	direct
13 Jan - 19 Jan	AJet	direct
16 Jan - 18 Jan	AJet	direct
12 Jan - 21 Jan	AJet	direct
01 Jan - 28 Feb	AJet	direct
28 Jan - 01 Feb	AJet	direct
30 Jan - 15 Feb	Pegasus Airlines	direct
31 Jan - 12 Feb	AJet	direct
30 Jan - 02 Feb	Pegasus Airlines	direct
31 Jan - 14 Feb	AJet	direct

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

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 Istanbul in January from $90

Return flights