Cheapest return IST–ZAG flights, December

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

Return flights

04 Dec - 04 Dec Air Serbia
01 Dec - 02 Dec Air Serbia
30 Dec - 03 Jan Air Serbia
05 Dec - 05 Dec Air Serbia
03 Dec - 03 Dec Air Serbia
03 Dec - 03 Dec Turkish Airlines direct
30 Dec - 03 Jan Turkish Airlines direct
02 Dec - 02 Dec Turkish Airlines direct
05 Dec - 05 Dec Turkish Airlines direct
01 Dec - 02 Dec Turkish Airlines direct
04 Dec - 04 Dec Turkish Airlines direct

Also check the deals for one-way flights from Istanbul to Zagreb in December.

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