| Rock Island to Solofra | 5,086.10 mi (8,185.29 km) |
| Rock Island to Somma Lombardo | 4,635.08 mi (7,459.44 km) |
| Rock Island to Somma Vesuviana | 5,068.04 mi (8,156.23 km) |
| Rock Island to Sommacampagna | 4,729.77 mi (7,611.82 km) |
| Rock Island to Sona | 4,727.72 mi (7,608.52 km) |
| Rock Island to Sondrio | 4,659.94 mi (7,499.45 km) |
| Rock Island to Sora | 4,997.75 mi (8,043.10 km) |
| Rock Island to Sorbolo | 4,737.77 mi (7,624.71 km) |
| Rock Island to Soresina | 4,696.35 mi (7,558.04 km) |
| Rock Island to Sorisole | 4,669.76 mi (7,515.25 km) |
| Rock Island to Sorrento | 5,076.62 mi (8,170.03 km) |
| Rock Island to Sorso | 4,834.93 mi (7,781.07 km) |
| Rock Island to Sortino | 5,261.62 mi (8,467.76 km) |
| Rock Island to Soverato Marina | 5,252.43 mi (8,452.97 km) |
| Rock Island to Sovicille | 4,835.22 mi (7,781.54 km) |
