| Naples to Sestao | 899.70 mi (1,447.92 km) |
| Naples to Sevilla | 1,111.53 mi (1,788.84 km) |
| Naples to Sevilla La Nueva | 957.89 mi (1,541.58 km) |
| Naples to Silla | 780.54 mi (1,256.16 km) |
| Naples to Silleda | 1,162.34 mi (1,870.60 km) |
| Naples to Sitges | 648.70 mi (1,043.97 km) |
| Naples to Socuellamos | 906.09 mi (1,458.21 km) |
| Naples to Soller | 612.62 mi (985.92 km) |
| Naples to Solsona | 663.97 mi (1,068.56 km) |
| Naples to Son Servera | 580.16 mi (933.67 km) |
| Naples to Sonseca | 960.98 mi (1,546.55 km) |
| Naples to Sopelana | 898.82 mi (1,446.51 km) |
| Naples to Soria | 868.74 mi (1,398.10 km) |
| Naples to Suances | 952.68 mi (1,533.18 km) |
| Naples to Sueca | 777.76 mi (1,251.69 km) |
