Cheapest return flights from Porto to Dublin in September from $107

Best time to book flights for Porto (OPO) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Porto (OPO) to Dublin (DUB) in September 2025 (see full year).

Return flights

23 Sep - 07 Oct Ryanair direct
23 Sep - 30 Sep Ryanair direct
23 Sep - 13 Oct Ryanair direct
23 Sep - 12 Oct Ryanair direct
11 Sep - 30 Sep Ryanair direct
23 Sep - 29 Sep Ryanair direct
23 Sep - 03 Oct Ryanair
10 Sep - 30 Sep Ryanair direct
11 Sep - 23 Sep Ryanair direct
16 Sep - 07 Oct Ryanair direct
11 Sep - 29 Sep Ryanair direct
16 Sep - 30 Sep Ryanair direct
23 Sep - 14 Oct Ryanair
19 Sep - 07 Oct Ryanair direct
19 Sep - 30 Sep Ryanair direct
11 Sep - 16 Sep Ryanair direct
02 Sep - 23 Sep Ryanair direct
23 Sep - 01 Oct Ryanair direct
23 Sep - 05 Oct Ryanair direct
24 Sep - 07 Oct Vueling Airlines

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

Skyscanner

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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