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

Return flights

19 Sep - 04 Oct	Eurowings	direct
19 Sep - 11 Oct	Eurowings	direct
26 Sep - 11 Oct	Eurowings	direct
19 Sep - 30 Sep	Eurowings
26 Sep - 18 Oct	Eurowings	direct
19 Sep - 09 Oct	Eurowings
27 Sep - 18 Oct	Tunisair	direct
26 Sep - 04 Oct	Eurowings	direct
19 Sep - 23 Sep	Eurowings
28 Sep - 14 Oct	Ryanair
19 Sep - 24 Sep	Eurowings
29 Sep - 14 Oct	easyJet
28 Sep - 13 Oct	Ryanair
26 Sep - 27 Sep	Eurowings	direct
24 Sep - 27 Sep	Ryanair
18 Sep - 27 Sep	Air France
17 Sep - 27 Sep	Air France
17 Sep - 24 Sep	Air France
19 Sep - 22 Sep	Eurowings	direct
19 Sep - 25 Sep	Eurowings

Also check the deals for one-way flights from Duesseldorf to Tunis 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 Tunis in September from 144€

Return flights