| Mountain Ash to Solofra | 1,143.30 mi (1,839.97 km) |
| Mountain Ash to Somma Lombardo | 688.03 mi (1,107.28 km) |
| Mountain Ash to Somma Vesuviana | 1,126.67 mi (1,813.19 km) |
| Mountain Ash to Sommacampagna | 780.25 mi (1,255.68 km) |
| Mountain Ash to Sona | 778.17 mi (1,252.35 km) |
| Mountain Ash to Sondrio | 710.28 mi (1,143.09 km) |
| Mountain Ash to Sora | 1,054.97 mi (1,697.81 km) |
| Mountain Ash to Sorbolo | 790.04 mi (1,271.45 km) |
| Mountain Ash to Soresina | 748.28 mi (1,204.24 km) |
| Mountain Ash to Sorisole | 720.75 mi (1,159.94 km) |
| Mountain Ash to Sorrento | 1,136.97 mi (1,829.77 km) |
| Mountain Ash to Sorso | 941.84 mi (1,515.75 km) |
| Mountain Ash to Sortino | 1,345.57 mi (2,165.48 km) |
| Mountain Ash to Soverato Marina | 1,314.30 mi (2,115.17 km) |
| Mountain Ash to Sovicille | 892.79 mi (1,436.81 km) |
