| Porvoo to Sulakyurt | 1,440.25 mi (2,317.86 km) |
| Porvoo to Sultanbeyli | 1,350.94 mi (2,174.12 km) |
| Porvoo to Sultandagi | 1,529.73 mi (2,461.87 km) |
| Porvoo to Sultanhani | 1,568.21 mi (2,523.79 km) |
| Porvoo to Sultanhisar | 1,558.74 mi (2,508.55 km) |
| Porvoo to Suluova | 1,416.98 mi (2,280.41 km) |
| Porvoo to Sumbas | 1,649.59 mi (2,654.76 km) |
| Porvoo to Sungurlu | 1,447.04 mi (2,328.79 km) |
| Porvoo to Surmene | 1,479.76 mi (2,381.44 km) |
| Porvoo to Suruc | 1,712.56 mi (2,756.10 km) |
| Porvoo to Susehri | 1,495.70 mi (2,407.10 km) |
| Porvoo to Susurluk | 1,419.13 mi (2,283.87 km) |
| Porvoo to Susuz | 1,545.93 mi (2,487.94 km) |
| Porvoo to Sutculer | 1,599.31 mi (2,573.85 km) |
| Porvoo to Talas | 1,560.43 mi (2,511.26 km) |
