AirHint found the following cheapest return flights from Istanbul (IST) to Zagreb (ZAG) in January 2026 (see full year).

Return flights

27 Jan - 31 Jan	Pegasus Airlines	direct
24 Jan - 31 Jan	Pegasus Airlines	direct
27 Jan - 01 Feb	Pegasus Airlines
26 Jan - 31 Jan	Air Serbia
23 Jan - 26 Jan	Air Serbia
25 Jan - 31 Jan	Pegasus Airlines
27 Jan - 01 Feb	Turkish Airlines	direct
25 Jan - 31 Jan	Turkish Airlines	direct
26 Jan - 31 Jan	Turkish Airlines	direct
23 Jan - 26 Jan	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Zagreb 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 Istanbul to Zagreb in January from $139

Return flights