| San Diego to Sestu | 6,379.84 mi (10,267.36 km) |
| San Diego to Settimo Torinese | 6,039.40 mi (9,719.47 km) |
| San Diego to Seveso | 6,059.19 mi (9,751.32 km) |
| San Diego to Sezze | 6,403.97 mi (10,306.19 km) |
| San Diego to Siano | 6,494.98 mi (10,452.66 km) |
| San Diego to Siena | 6,250.97 mi (10,059.96 km) |
| San Diego to Signa | 6,219.17 mi (10,008.78 km) |
| San Diego to Silea | 6,159.89 mi (9,913.39 km) |
| San Diego to Silvi Paese | 6,382.43 mi (10,271.53 km) |
| San Diego to Sinalunga | 6,269.53 mi (10,089.84 km) |
| San Diego to Siniscola | 6,336.55 mi (10,197.69 km) |
| San Diego to Sinnai | 6,383.71 mi (10,273.59 km) |
| San Diego to Siracusa | 6,716.01 mi (10,808.37 km) |
| San Diego to Solaro | 6,058.88 mi (9,750.82 km) |
| San Diego to Soliera | 6,163.92 mi (9,919.87 km) |
