We have prepared for you the list of the cheapest deals for Ryanair flight from Porto (OPO) to Shannon (SNN) by the month of departure.
Cheapest flights for September 2025
| Departure date | Cheapest price | |
|---|---|---|
| 10 Sep 2025 | 30 € | Book Now |
| 11 Sep 2025 | 30 € | Book Now |
| 25 Sep 2025 | 30 € | Book Now |
| 18 Sep 2025 | 64 € | Book Now |
Cheapest flights for October 2025
| Departure date | Cheapest price | |
|---|---|---|
| 01 Oct 2025 | 30 € | Book Now |
| 02 Oct 2025 | 30 € | Book Now |
| 08 Oct 2025 | 30 € | Book Now |
| 15 Oct 2025 | 30 € | Book Now |
| 16 Oct 2025 | 30 € | Book Now |
Cheapest flights for November 2025
| Departure date | Cheapest price | |
|---|---|---|
| 04 Nov 2025 | 81 € | 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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