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

Return flights

25 Sep - 13 Oct	Ryanair	direct
30 Sep - 13 Oct	Ryanair	direct
24 Sep - 13 Oct	Ryanair	direct
23 Sep - 13 Oct	Ryanair	direct
30 Sep - 15 Oct	Ryanair	direct
25 Sep - 15 Oct	Ryanair	direct
30 Sep - 16 Oct	Ryanair	direct
25 Sep - 06 Oct	Ryanair	direct
30 Sep - 06 Oct	Ryanair	direct
24 Sep - 06 Oct	Ryanair	direct
18 Sep - 25 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
18 Sep - 23 Sep	Ryanair
21 Sep - 23 Sep	Ryanair
25 Sep - 30 Sep	Ryanair
23 Sep - 30 Sep	Ryanair
03 Sep - 19 Sep	Ryanair
09 Sep - 19 Sep	Ryanair
16 Sep - 18 Sep	Ryanair
21 Sep - 25 Sep	Ryanair

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Thessaloniki in September from 74€

Return flights