| Monrovia to Sesena | 5,816.39 mi (9,360.58 km) |
| Monrovia to Sestao | 5,698.70 mi (9,171.18 km) |
| Monrovia to Sevilla | 5,849.47 mi (9,413.80 km) |
| Monrovia to Sevilla La Nueva | 5,792.19 mi (9,321.63 km) |
| Monrovia to Silla | 5,980.90 mi (9,625.32 km) |
| Monrovia to Silleda | 5,520.95 mi (8,885.10 km) |
| Monrovia to Sitges | 5,976.96 mi (9,618.98 km) |
| Monrovia to Socuellamos | 5,889.39 mi (9,478.06 km) |
| Monrovia to Soller | 6,081.44 mi (9,787.13 km) |
| Monrovia to Solsona | 5,929.87 mi (9,543.20 km) |
| Monrovia to Son Servera | 6,113.44 mi (9,838.63 km) |
| Monrovia to Sonseca | 5,824.43 mi (9,373.51 km) |
| Monrovia to Sopelana | 5,696.52 mi (9,167.66 km) |
| Monrovia to Soria | 5,789.49 mi (9,317.29 km) |
| Monrovia to Suances | 5,653.33 mi (9,098.15 km) |
