We have prepared for you the list of the cheapest deals for Ryanair flight from Porto (OPO) to Belfast (BFS) by the month of departure.
Cheapest flights for July 2025
| Departure date | Cheapest price | |
|---|---|---|
| 23 Jul 2025 | 63 € | Book Now |
| 30 Jul 2025 | 118 € | Book Now |
| 26 Jul 2025 | 191 € | Book Now |
Cheapest flights for August 2025
| Departure date | Cheapest price | |
|---|---|---|
| 30 Aug 2025 | 89 € | Book Now |
| 20 Aug 2025 | 90 € | Book Now |
| 06 Aug 2025 | 99 € | Book Now |
| 16 Aug 2025 | 109 € | Book Now |
| 09 Aug 2025 | 123 € | Book Now |
Cheapest flights for September 2025
| Departure date | Cheapest price | |
|---|---|---|
| 13 Sep 2025 | 85 € | Book Now |
| 06 Sep 2025 | 100 € | Book Now |
| 20 Sep 2025 | 100 € | Book Now |
| 27 Sep 2025 | 101 € | Book Now |
| 10 Sep 2025 | 109 € | Book Now |
Cheapest flights for October 2025
| Departure date | Cheapest price | |
|---|---|---|
| 18 Oct 2025 | 67 € | Book Now |
| 22 Oct 2025 | 79 € | Book Now |
| 04 Oct 2025 | 88 € | Book Now |
| 15 Oct 2025 | 99 € | Book Now |
| 25 Oct 2025 | 126 € | 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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