Cheapest return flights from Porto to Cagliari in September from $120

Best time to book flights for Porto (OPO) to Cagliari (CAG) flights at AirHint

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

Return flights

30 Sep - 18 Oct Ryanair direct
30 Sep - 07 Oct Ryanair direct
27 Sep - 07 Oct Ryanair direct
30 Sep - 14 Oct Ryanair direct
26 Sep - 07 Oct Vueling Airlines
19 Sep - 07 Oct Vueling Airlines
23 Sep - 07 Oct Ryanair direct
26 Sep - 14 Oct Vueling Airlines
27 Sep - 14 Oct Ryanair direct
19 Sep - 27 Sep Vueling Airlines
30 Sep - 20 Oct Ryanair
23 Sep - 27 Sep Ryanair
16 Sep - 27 Sep Ryanair
19 Sep - 20 Sep Vueling Airlines
26 Sep - 27 Sep Vueling Airlines
22 Sep - 27 Sep Ryanair
16 Sep - 23 Sep Ryanair
27 Sep - 30 Sep Ryanair direct
12 Sep - 20 Sep Vueling Airlines
12 Sep - 26 Sep Vueling Airlines

Also check the deals for one-way flights from Porto to Cagliari 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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