| Porvoo to Sevnica | 1,079.46 mi (1,737.22 km) |
| Porvoo to Sezana | 1,123.12 mi (1,807.49 km) |
| Porvoo to Skocjan | 1,086.33 mi (1,748.28 km) |
| Porvoo to Skofja Loka | 1,085.74 mi (1,747.34 km) |
| Porvoo to Skofljica | 1,092.98 mi (1,758.97 km) |
| Porvoo to Slovenj Gradec | 1,050.56 mi (1,690.71 km) |
| Porvoo to Slovenska Bistrica | 1,050.32 mi (1,690.33 km) |
| Porvoo to Slovenske Konjice | 1,056.11 mi (1,699.65 km) |
| Porvoo to Smarje | 1,061.80 mi (1,708.80 km) |
| Porvoo to Smarjeske Toplice | 1,090.36 mi (1,754.76 km) |
| Porvoo to Smartno | 1,084.57 mi (1,745.44 km) |
| Porvoo to Smartno | 1,062.98 mi (1,710.70 km) |
| Porvoo to Sodrazica | 1,106.37 mi (1,780.53 km) |
| Porvoo to Solcava | 1,062.80 mi (1,710.40 km) |
| Porvoo to Sostanj | 1,059.47 mi (1,705.06 km) |
