| Philadelphia to Sesena | 3,667.70 mi (5,902.60 km) |
| Philadelphia to Sestao | 3,611.03 mi (5,811.40 km) |
| Philadelphia to Sevilla | 3,640.44 mi (5,858.71 km) |
| Philadelphia to Sevilla La Nueva | 3,644.84 mi (5,865.80 km) |
| Philadelphia to Silla | 3,847.36 mi (6,191.73 km) |
| Philadelphia to Silleda | 3,381.53 mi (5,442.05 km) |
| Philadelphia to Sitges | 3,894.28 mi (6,267.24 km) |
| Philadelphia to Socuellamos | 3,735.02 mi (6,010.93 km) |
| Philadelphia to Soller | 3,982.19 mi (6,408.71 km) |
| Philadelphia to Solsona | 3,857.92 mi (6,208.72 km) |
| Philadelphia to Son Servera | 4,017.94 mi (6,466.24 km) |
| Philadelphia to Sonseca | 3,667.30 mi (5,901.95 km) |
| Philadelphia to Sopelana | 3,610.37 mi (5,810.32 km) |
| Philadelphia to Soria | 3,678.69 mi (5,920.28 km) |
| Philadelphia to Suances | 3,559.34 mi (5,728.20 km) |
