| Grottaferrata to Sestao | 803.67 mi (1,293.39 km) |
| Grottaferrata to Sevilla | 1,040.72 mi (1,674.88 km) |
| Grottaferrata to Sevilla La Nueva | 874.22 mi (1,406.92 km) |
| Grottaferrata to Silla | 705.95 mi (1,136.11 km) |
| Grottaferrata to Silleda | 1,068.39 mi (1,719.40 km) |
| Grottaferrata to Sitges | 563.20 mi (906.38 km) |
| Grottaferrata to Socuellamos | 828.94 mi (1,334.05 km) |
| Grottaferrata to Soller | 539.75 mi (868.64 km) |
| Grottaferrata to Solsona | 573.46 mi (922.89 km) |
| Grottaferrata to Son Servera | 509.90 mi (820.60 km) |
| Grottaferrata to Sonseca | 880.54 mi (1,417.09 km) |
| Grottaferrata to Sopelana | 802.54 mi (1,291.57 km) |
| Grottaferrata to Soria | 779.00 mi (1,253.69 km) |
| Grottaferrata to Suances | 856.39 mi (1,378.23 km) |
| Grottaferrata to Sueca | 704.39 mi (1,133.60 km) |
