| Monrovia to Sestu | 6,338.77 mi (10,201.26 km) |
| Monrovia to Settimo Torinese | 5,992.98 mi (9,644.77 km) |
| Monrovia to Seveso | 6,011.04 mi (9,673.84 km) |
| Monrovia to Sezze | 6,356.70 mi (10,230.12 km) |
| Monrovia to Siano | 6,446.86 mi (10,375.22 km) |
| Monrovia to Siena | 6,203.40 mi (9,983.41 km) |
| Monrovia to Signa | 6,171.32 mi (9,931.78 km) |
| Monrovia to Silea | 6,109.04 mi (9,831.55 km) |
| Monrovia to Silvi Paese | 6,333.11 mi (10,192.15 km) |
| Monrovia to Sinalunga | 6,221.71 mi (10,012.88 km) |
| Monrovia to Siniscola | 6,293.47 mi (10,128.36 km) |
| Monrovia to Sinnai | 6,342.53 mi (10,207.32 km) |
| Monrovia to Siracusa | 6,671.09 mi (10,736.09 km) |
| Monrovia to Solaro | 6,010.81 mi (9,673.46 km) |
| Monrovia to Soliera | 6,115.21 mi (9,841.49 km) |
