We have prepared for you the list of the cheapest deals for Ryanair flight from Shannon (SNN) to Porto (OPO) by the month of departure.
Cheapest flights for August 2025
| Departure date | Cheapest price | |
|---|---|---|
| 21 Aug 2025 | $ 32 | Book Now |
| 24 Aug 2025 | $ 32 | Book Now |
| 07 Aug 2025 | $ 65 | Book Now |
| 14 Aug 2025 | $ 65 | Book Now |
| 20 Aug 2025 | $ 66 | Book Now |
Cheapest flights for September 2025
| Departure date | Cheapest price | |
|---|---|---|
| 25 Sep 2025 | $ 35 | Book Now |
| 24 Sep 2025 | $ 36 | Book Now |
| 17 Sep 2025 | $ 45 | Book Now |
| 18 Sep 2025 | $ 45 | Book Now |
| 28 Sep 2025 | $ 45 | Book Now |
Cheapest flights for October 2025
| Departure date | Cheapest price | |
|---|---|---|
| 28 Oct 2025 | $ 35 | Book Now |
| 30 Oct 2025 | $ 35 | Book Now |
| 16 Oct 2025 | $ 58 | Book Now |
| 05 Oct 2025 | $ 67 | Book Now |
| 22 Oct 2025 | $ 67 | 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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