AirHint found the following cheapest return flights from Zagreb (ZAG) to Thessaloniki (SKG) in December 2025 (see full year).

Return flights

05 Dec - 12 Dec	Ryanair	direct
05 Dec - 21 Dec	Ryanair	direct
19 Dec - 21 Dec	Ryanair	direct
14 Dec - 21 Dec	Ryanair	direct
14 Dec - 02 Jan	Ryanair	direct
19 Dec - 02 Jan	Ryanair	direct
05 Dec - 19 Dec	Ryanair	direct
19 Dec - 04 Jan	Ryanair	direct
14 Dec - 19 Dec	Ryanair	direct
29 Dec - 02 Jan	Air Serbia
27 Dec - 02 Jan	Air Serbia

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

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.

Book a cheap hotel in Thessaloniki

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Cheapest return flights from Zagreb to Thessaloniki in December from 66€

Return flights