| Seia to Solofra | 1,179.69 mi (1,898.53 km) |
| Seia to Somma Lombardo | 902.23 mi (1,451.99 km) |
| Seia to Somma Vesuviana | 1,157.94 mi (1,863.52 km) |
| Seia to Sommacampagna | 997.07 mi (1,604.63 km) |
| Seia to Sona | 996.82 mi (1,604.23 km) |
| Seia to Sondrio | 966.08 mi (1,554.75 km) |
| Seia to Sora | 1,111.27 mi (1,788.41 km) |
| Seia to Sorbolo | 969.50 mi (1,560.27 km) |
| Seia to Soresina | 948.39 mi (1,526.28 km) |
| Seia to Sorisole | 947.40 mi (1,524.69 km) |
| Seia to Sorrento | 1,156.45 mi (1,861.13 km) |
| Seia to Sorso | 853.08 mi (1,372.89 km) |
| Seia to Sortino | 1,241.23 mi (1,997.56 km) |
| Seia to Soverato Marina | 1,293.50 mi (2,081.69 km) |
| Seia to Sovicille | 992.09 mi (1,596.62 km) |
