| Porterville to Solofra | 6,373.02 mi (10,256.38 km) |
| Porterville to Somma Lombardo | 5,918.88 mi (9,525.52 km) |
| Porterville to Somma Vesuviana | 6,358.19 mi (10,232.52 km) |
| Porterville to Sommacampagna | 5,999.73 mi (9,655.64 km) |
| Porterville to Sona | 5,997.43 mi (9,651.93 km) |
| Porterville to Sondrio | 5,928.70 mi (9,541.33 km) |
| Porterville to Sora | 6,285.97 mi (10,116.30 km) |
| Porterville to Sorbolo | 6,017.47 mi (9,684.18 km) |
| Porterville to Soresina | 5,975.67 mi (9,616.92 km) |
| Porterville to Sorisole | 5,945.38 mi (9,568.16 km) |
| Porterville to Sorrento | 6,369.93 mi (10,251.41 km) |
| Porterville to Sorso | 6,174.11 mi (9,936.27 km) |
| Porterville to Sortino | 6,584.57 mi (10,596.85 km) |
| Porterville to Soverato Marina | 6,546.46 mi (10,535.51 km) |
| Porterville to Sovicille | 6,126.32 mi (9,859.35 km) |
