| Porvoo to Olivenza | 2,059.32 mi (3,314.15 km) |
| Porvoo to Olot | 1,590.56 mi (2,559.75 km) |
| Porvoo to Onate | 1,673.84 mi (2,693.79 km) |
| Porvoo to Onda | 1,794.79 mi (2,888.44 km) |
| Porvoo to Onteniente | 1,872.55 mi (3,013.57 km) |
| Porvoo to Orihuela | 1,926.05 mi (3,099.68 km) |
| Porvoo to Osuna | 2,088.36 mi (3,360.89 km) |
| Porvoo to Ourense | 1,874.41 mi (3,016.57 km) |
| Porvoo to Oviedo | 1,756.49 mi (2,826.80 km) |
| Porvoo to Paiporta | 1,831.02 mi (2,946.75 km) |
| Porvoo to Pajara | 2,878.63 mi (4,632.71 km) |
| Porvoo to Palafolls | 1,614.83 mi (2,598.82 km) |
| Porvoo to Palafrugell | 1,589.54 mi (2,558.11 km) |
| Porvoo to Palamos | 1,594.72 mi (2,566.45 km) |
| Porvoo to Palencia | 1,792.83 mi (2,885.28 km) |
