Cheapest return flights from Dublin to Porto in September from $234

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

Return flights

12 Sep - 14 Sep Ryanair
28 Sep - 05 Oct Ryanair
04 Sep - 09 Sep Ryanair direct
04 Sep - 07 Sep TAP
04 Sep - 07 Sep Ryanair direct
28 Sep - 12 Oct Ryanair direct
28 Sep - 05 Oct Ryanair direct
04 Sep - 14 Sep Ryanair direct
12 Sep - 14 Sep Ryanair direct

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

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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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