We have prepared for you the list of the cheapest deals for Ryanair flight from Cagliari (CAG) to Porto (OPO) by the month of departure.
Cheapest flights for September 2025
| Departure date | Cheapest price | |
|---|---|---|
| 16 Sep 2025 | 79 € | Book Now |
| 18 Sep 2025 | 92 € | Book Now |
| 11 Sep 2025 | 109 € | Book Now |
| 27 Sep 2025 | 112 € | Book Now |
| 25 Sep 2025 | 115 € | Book Now |
Cheapest flights for October 2025
| Departure date | Cheapest price | |
|---|---|---|
| 28 Oct 2025 | 41 € | Book Now |
| 30 Oct 2025 | 41 € | Book Now |
| 09 Oct 2025 | 54 € | Book Now |
| 16 Oct 2025 | 54 € | Book Now |
| 14 Oct 2025 | 61 € | Book Now |
The deals are updated by AirHint regularly. Please keep in mind that the price may go up as tickets are purchased by other travellers. Only the cheapest one-way flights are offered. Book fast to secure these cheap Ryanair prices.
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