| Mount Washington to Sestu | 4,841.06 mi (7,790.94 km) |
| Mount Washington to Settimo Torinese | 4,569.51 mi (7,353.92 km) |
| Mount Washington to Seveso | 4,608.38 mi (7,416.47 km) |
| Mount Washington to Sezze | 4,929.26 mi (7,932.87 km) |
| Mount Washington to Siano | 5,026.23 mi (8,088.93 km) |
| Mount Washington to Siena | 4,785.61 mi (7,701.70 km) |
| Mount Washington to Signa | 4,758.35 mi (7,657.82 km) |
| Mount Washington to Silea | 4,737.13 mi (7,623.67 km) |
| Mount Washington to Silvi Paese | 4,932.01 mi (7,937.31 km) |
| Mount Washington to Sinalunga | 4,806.36 mi (7,735.08 km) |
| Mount Washington to Siniscola | 4,819.41 mi (7,756.09 km) |
| Mount Washington to Sinnai | 4,845.91 mi (7,798.74 km) |
| Mount Washington to Siracusa | 5,204.78 mi (8,376.28 km) |
| Mount Washington to Solaro | 4,607.19 mi (7,414.55 km) |
| Mount Washington to Soliera | 4,715.31 mi (7,588.56 km) |
