| Porvoo to Serik | 1,639.71 mi (2,638.87 km) |
| Porvoo to Serinhisar | 1,584.17 mi (2,549.47 km) |
| Porvoo to Serinyol | 1,724.20 mi (2,774.84 km) |
| Porvoo to Seydisehir | 1,610.51 mi (2,591.87 km) |
| Porvoo to Seyhan | 1,672.54 mi (2,691.69 km) |
| Porvoo to Seyitgazi | 1,463.60 mi (2,355.44 km) |
| Porvoo to Siirt | 1,707.11 mi (2,747.33 km) |
| Porvoo to Sile | 1,338.41 mi (2,153.97 km) |
| Porvoo to Silifke | 1,699.27 mi (2,734.71 km) |
| Porvoo to Silivri | 1,339.46 mi (2,155.65 km) |
| Porvoo to Silopi | 1,760.73 mi (2,833.62 km) |
| Porvoo to Simav | 1,479.45 mi (2,380.94 km) |
| Porvoo to Sinanpasa | 1,508.67 mi (2,427.97 km) |
| Porvoo to Sindirgi | 1,465.65 mi (2,358.74 km) |
| Porvoo to Sinop | 1,330.70 mi (2,141.56 km) |
