Cheapest return flights from Thessaloniki to Istanbul in September from $216

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

Return flights

21 Sep - 23 Sep Aegean Airlines
21 Sep - 28 Sep Aegean Airlines
03 Sep - 08 Sep Aegean Airlines
29 Sep - 03 Oct Aegean Airlines
09 Sep - 16 Sep Aegean Airlines
22 Sep - 26 Sep Aegean Airlines
18 Sep - 23 Sep Aegean Airlines
15 Sep - 21 Sep SKY express
11 Sep - 14 Sep Ryanair
12 Sep - 20 Sep Ryanair
01 Sep - 05 Sep Aegean Airlines
29 Sep - 03 Oct Turkish Airlines direct
21 Sep - 08 Oct SKY express
28 Sep - 08 Oct SKY express
28 Sep - 16 Oct SKY express

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

Skyscanner

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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