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

Return flights

23 Oct - 10 Nov	Ryanair	direct
17 Oct - 21 Oct	Ryanair	direct
19 Oct - 25 Oct	Vueling Airlines
24 Oct - 10 Nov	Ryanair	direct
17 Oct - 19 Oct	Ryanair	direct
17 Oct - 26 Oct	Ryanair	direct
23 Oct - 26 Oct	Ryanair	direct
24 Oct - 26 Oct	Ryanair	direct
17 Oct - 25 Oct	Ryanair	direct
18 Oct - 21 Oct	Ryanair	direct
19 Oct - 21 Oct	Ryanair	direct
23 Oct - 25 Oct	Ryanair	direct
29 Oct - 10 Nov	Ryanair	direct

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

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 Porto to Dublin in October from $161

Return flights