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

Return flights

24 Sep - 29 Sep	SKY express
24 Sep - 25 Sep	SKY express
16 Sep - 23 Sep	SKY express
16 Sep - 29 Sep	SKY express
16 Sep - 25 Sep	SKY express
24 Sep - 28 Sep	SKY express
24 Sep - 30 Sep	SKY express
24 Sep - 27 Sep	SKY express
24 Sep - 14 Oct	SKY express
21 Sep - 23 Sep	SKY express
21 Sep - 29 Sep	SKY express
24 Sep - 01 Oct	SKY express
29 Sep - 14 Oct	SKY express
16 Sep - 01 Oct	SKY express
28 Sep - 14 Oct	SKY express
23 Sep - 14 Oct	SKY express
29 Sep - 01 Oct	SKY express
21 Sep - 01 Oct	SKY express
10 Sep - 01 Oct	SKY express
11 Sep - 01 Oct	SKY express

Also check the deals for one-way flights from Syros Island to Thessaloniki in September.

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 September from $207

Return flights