| Porvoo to Sprimont | 1,032.50 mi (1,661.65 km) |
| Porvoo to Stabroek | 1,028.47 mi (1,655.17 km) |
| Porvoo to Staden | 1,087.17 mi (1,749.63 km) |
| Porvoo to Steenokkerzeel | 1,044.93 mi (1,681.65 km) |
| Porvoo to Stekene | 1,045.13 mi (1,681.98 km) |
| Porvoo to Strombeek-Bever | 1,050.10 mi (1,689.97 km) |
| Porvoo to Temse | 1,044.24 mi (1,680.54 km) |
| Porvoo to Ternat | 1,057.25 mi (1,701.49 km) |
| Porvoo to Tervuren | 1,050.34 mi (1,690.36 km) |
| Porvoo to Tessenderlo | 1,020.06 mi (1,641.63 km) |
| Porvoo to Theux | 1,026.46 mi (1,651.92 km) |
| Porvoo to Thuin | 1,081.43 mi (1,740.39 km) |
| Porvoo to Tielt | 1,076.52 mi (1,732.48 km) |
| Porvoo to Tienen | 1,038.38 mi (1,671.11 km) |
| Porvoo to Tongeren | 1,023.91 mi (1,647.83 km) |
