| Ardahan to Solofra | 1,446.87 mi (2,328.52 km) |
| Ardahan to Somma Lombardo | 1,722.56 mi (2,772.18 km) |
| Ardahan to Somma Vesuviana | 1,467.66 mi (2,361.98 km) |
| Ardahan to Sommacampagna | 1,618.98 mi (2,605.49 km) |
| Ardahan to Sona | 1,619.75 mi (2,606.74 km) |
| Ardahan to Sondrio | 1,665.89 mi (2,680.99 km) |
| Ardahan to Sora | 1,500.50 mi (2,414.82 km) |
| Ardahan to Sorbolo | 1,639.63 mi (2,638.72 km) |
| Ardahan to Soresina | 1,667.37 mi (2,683.37 km) |
| Ardahan to Sorisole | 1,676.34 mi (2,697.81 km) |
| Ardahan to Sorrento | 1,473.95 mi (2,372.10 km) |
| Ardahan to Sorso | 1,769.29 mi (2,847.40 km) |
| Ardahan to Sortino | 1,501.03 mi (2,415.68 km) |
| Ardahan to Soverato Marina | 1,391.10 mi (2,238.76 km) |
| Ardahan to Sovicille | 1,608.21 mi (2,588.16 km) |
