Cheapest return flights from Dublin to Porto in May from $183

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

Return flights

28 May - 02 Jun SWISS
06 May - 12 May Ryanair direct
06 May - 23 May Ryanair direct
06 May - 27 May Ryanair direct
26 May - 27 May Ryanair direct
06 May - 16 May Ryanair direct
06 May - 20 May Ryanair direct
06 May - 22 May Ryanair direct
26 May - 02 Jun Ryanair direct
15 May - 27 May Vueling Airlines
15 May - 16 May Vueling Airlines
15 May - 20 May Vueling Airlines
15 May - 02 Jun Vueling Airlines
17 May - 02 Jun Ryanair direct
27 May - 02 Jun Ryanair direct
26 May - 15 Jun Ryanair
15 May - 02 Jun Ryanair direct
16 May - 02 Jun Ryanair direct
21 May - 02 Jun Ryanair direct
26 May - 13 Jun Ryanair direct

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

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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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