| Philadelphia to Solofra | 4,500.21 mi (7,242.39 km) |
| Philadelphia to Somma Lombardo | 4,065.32 mi (6,542.49 km) |
| Philadelphia to Somma Vesuviana | 4,480.51 mi (7,210.69 km) |
| Philadelphia to Sommacampagna | 4,166.49 mi (6,705.32 km) |
| Philadelphia to Sona | 4,164.69 mi (6,702.42 km) |
| Philadelphia to Sondrio | 4,099.86 mi (6,598.08 km) |
| Philadelphia to Sora | 4,413.57 mi (7,102.96 km) |
| Philadelphia to Sorbolo | 4,167.51 mi (6,706.95 km) |
| Philadelphia to Soresina | 4,127.69 mi (6,642.87 km) |
| Philadelphia to Sorisole | 4,104.57 mi (6,605.67 km) |
| Philadelphia to Sorrento | 4,486.73 mi (7,220.69 km) |
| Philadelphia to Sorso | 4,220.25 mi (6,791.84 km) |
| Philadelphia to Sortino | 4,646.95 mi (7,478.54 km) |
| Philadelphia to Soverato Marina | 4,657.10 mi (7,494.88 km) |
| Philadelphia to Sovicille | 4,254.01 mi (6,846.16 km) |
