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

Return flights

23 Sep - 30 Sep	Austrian Airlines
04 Sep - 20 Sep	Austrian Airlines
10 Sep - 11 Oct	Austrian Airlines
12 Sep - 29 Sep	SWISS
08 Sep - 09 Oct	Austrian Airlines
20 Sep - 30 Sep	SWISS
07 Sep - 08 Oct	SWISS
22 Sep - 15 Oct	SKY express
25 Sep - 03 Oct	Austrian Airlines
21 Sep - 12 Oct	Lufthansa
20 Sep - 12 Oct	Lufthansa
05 Sep - 06 Oct	Austrian Airlines
15 Sep - 25 Sep	Austrian Airlines
01 Sep - 12 Sep	Aegean Airlines
05 Sep - 12 Sep	SWISS
07 Sep - 12 Sep	Ryanair
03 Sep - 12 Sep	Aegean Airlines
01 Sep - 05 Sep	Aegean Airlines

Also check the deals for one-way flights from Thessaloniki to Bangkok 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 Thessaloniki to Bangkok in September from $706

Return flights