AirHint found the following cheapest return flights from Duesseldorf (DUS) to Porto (OPO) in May 2026 (see full year).

Return flights

14 May - 28 May	Ryanair	direct
05 May - 05 May	Ryanair
14 May - 25 May	Ryanair	direct
14 May - 20 May	Ryanair
14 May - 02 Jun	Ryanair	direct
05 May - 25 May	Ryanair	direct
05 May - 14 May	Ryanair	direct
03 May - 05 May	Ryanair
04 May - 05 May	Ryanair
05 May - 20 May	Ryanair
30 May - 10 Jun	Vueling Airlines
21 May - 10 Jun	Ryanair
14 May - 01 Jun	Ryanair
21 May - 25 May	Ryanair	direct
21 May - 02 Jun	Ryanair	direct
30 May - 02 Jun	Vueling Airlines
21 May - 01 Jun	Ryanair
30 May - 01 Jun	Vueling Airlines
21 May - 11 Jun	Ryanair	direct
21 May - 09 Jun	Ryanair	direct

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

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 May from $144

Return flights