| Portici to Serik | 939.31 mi (1,511.67 km) |
| Portici to Serinhisar | 828.89 mi (1,333.97 km) |
| Portici to Serinyol | 1,216.32 mi (1,957.49 km) |
| Portici to Seydisehir | 965.76 mi (1,554.24 km) |
| Portici to Seyhan | 1,156.39 mi (1,861.03 km) |
| Portici to Seyitgazi | 867.77 mi (1,396.54 km) |
| Portici to Siirt | 1,481.69 mi (2,384.55 km) |
| Portici to Sile | 795.73 mi (1,280.61 km) |
| Portici to Silifke | 1,098.88 mi (1,768.47 km) |
| Portici to Silivri | 725.20 mi (1,167.10 km) |
| Portici to Silopi | 1,522.98 mi (2,451.00 km) |
| Portici to Simav | 783.81 mi (1,261.42 km) |
| Portici to Sinanpasa | 855.46 mi (1,376.73 km) |
| Portici to Sindirgi | 739.18 mi (1,189.60 km) |
| Portici to Sinop | 1,078.70 mi (1,736.00 km) |
