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

Return flights

10 Dec - 29 Dec	SKY express
10 Dec - 31 Dec	SKY express
10 Dec - 17 Dec	SKY express
10 Dec - 15 Dec	SKY express
10 Dec - 12 Dec	SKY express
03 Dec - 08 Dec	SKY express
05 Dec - 08 Dec	SKY express
03 Dec - 10 Dec	SKY express
03 Dec - 05 Dec	SKY express
17 Dec - 29 Dec	SKY express
26 Dec - 12 Jan	SKY express
22 Dec - 12 Jan	SKY express
19 Dec - 19 Jan	SKY express
17 Dec - 07 Jan	SKY express
26 Dec - 07 Jan	SKY express
22 Dec - 07 Jan	SKY express
19 Dec - 07 Jan	SKY express

Also check the deals for one-way flights from Syros Island 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.

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Cheapest return flights from Syros Island to Thessaloniki in December from $199

Return flights