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

Return flights

01 Jul - 09 Jul	Ryanair
01 Jul - 15 Jul	Condor
01 Jul - 04 Jul	Ryanair
08 Jul - 15 Jul	Vueling Airlines
09 Jul - 16 Jul	Ryanair	direct
09 Jul - 11 Jul	Ryanair	direct
09 Jul - 18 Jul	Ryanair	direct
01 Jul - 15 Jul	Eurowings	direct
08 Jul - 16 Jul	Vueling Airlines
08 Jul - 11 Jul	Vueling Airlines
31 Jul - 06 Aug	Ryanair
27 Jul - 03 Aug	Ryanair
28 Jul - 06 Aug	Eurowings
28 Jul - 01 Aug	Ryanair
27 Jul - 01 Aug	Ryanair
27 Jul - 04 Aug	Ryanair
30 Jul - 03 Aug	Ryanair
30 Jul - 13 Aug	Ryanair
30 Jul - 03 Aug	Ryanair	direct
30 Jul - 01 Aug	Ryanair

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

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 July from $147

Return flights