AirHint found the following cheapest return flights from Duesseldorf (DUS) to Porto (OPO) in August 2025 (see full year).

Return flights

20 Aug - 05 Sep	Ryanair	direct
29 Aug - 10 Sep	Ryanair	direct
29 Aug - 03 Sep	Ryanair	direct
20 Aug - 03 Sep	Ryanair	direct
29 Aug - 05 Sep	Ryanair	direct
29 Aug - 16 Sep	Ryanair
26 Aug - 10 Sep	Vueling Airlines
27 Aug - 10 Sep	Ryanair	direct
20 Aug - 09 Sep	Ryanair
26 Aug - 05 Sep	Vueling Airlines
20 Aug - 31 Aug	Ryanair
20 Aug - 29 Aug	Ryanair	direct
20 Aug - 26 Aug	Ryanair
25 Aug - 31 Aug	Ryanair
20 Aug - 27 Aug	Ryanair
20 Aug - 27 Aug	Ryanair	direct
26 Aug - 29 Aug	Vueling Airlines
25 Aug - 29 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
21 Aug - 27 Aug	Vueling Airlines

Also check the deals for one-way flights from Duesseldorf to Porto in August.

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 Porto in August from 118€

Return flights