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

Return flights

07 Jul - 28 Jul	Ryanair
07 Jul - 08 Jul	Ryanair
21 Jul - 11 Aug	Ryanair	direct
03 Jul - 06 Jul	SWISS
22 Jul - 11 Aug	Ryanair	direct
21 Jul - 28 Jul	Ryanair
02 Jul - 08 Jul	Ryanair
22 Jul - 28 Jul	Ryanair
07 Jul - 10 Jul	Ryanair
09 Jul - 28 Jul	Ryanair
15 Jul - 28 Jul	Ryanair
21 Jul - 29 Jul	Ryanair
25 Jul - 11 Aug	Ryanair	direct
21 Jul - 03 Aug	Ryanair
26 Jul - 11 Aug	Ryanair	direct
22 Jul - 03 Aug	Ryanair
15 Jul - 03 Aug	Ryanair
20 Jul - 03 Aug	Vueling Airlines
16 Jul - 03 Aug	Ryanair
21 Jul - 03 Aug	Ryanair	direct

Also check the deals for one-way flights from Porto to Dublin 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 Porto to Dublin in July from 161€

Return flights