| Ciechanow to Solofra | 874.47 mi (1,407.33 km) |
| Ciechanow to Somma Lombardo | 730.20 mi (1,175.15 km) |
| Ciechanow to Somma Vesuviana | 878.07 mi (1,413.12 km) |
| Ciechanow to Sommacampagna | 678.31 mi (1,091.64 km) |
| Ciechanow to Sona | 676.96 mi (1,089.47 km) |
| Ciechanow to Sondrio | 667.42 mi (1,074.10 km) |
| Ciechanow to Sora | 836.66 mi (1,346.48 km) |
| Ciechanow to Sorbolo | 720.70 mi (1,159.85 km) |
| Ciechanow to Soresina | 714.18 mi (1,149.36 km) |
| Ciechanow to Sorisole | 696.55 mi (1,121.00 km) |
| Ciechanow to Sorrento | 895.21 mi (1,440.70 km) |
| Ciechanow to Sorso | 1,007.03 mi (1,620.66 km) |
| Ciechanow to Sortino | 1,117.86 mi (1,799.02 km) |
| Ciechanow to Soverato Marina | 999.12 mi (1,607.93 km) |
| Ciechanow to Sovicille | 790.22 mi (1,271.74 km) |
