| Glenn Dale to Solofra | 4,613.62 mi (7,424.90 km) |
| Glenn Dale to Somma Lombardo | 4,178.98 mi (6,725.42 km) |
| Glenn Dale to Somma Vesuviana | 4,593.90 mi (7,393.16 km) |
| Glenn Dale to Sommacampagna | 4,280.19 mi (6,888.30 km) |
| Glenn Dale to Sona | 4,278.38 mi (6,885.40 km) |
| Glenn Dale to Sondrio | 4,213.57 mi (6,781.09 km) |
| Glenn Dale to Sora | 4,527.02 mi (7,285.54 km) |
| Glenn Dale to Sorbolo | 4,281.15 mi (6,889.85 km) |
| Glenn Dale to Soresina | 4,241.35 mi (6,825.80 km) |
| Glenn Dale to Sorisole | 4,218.26 mi (6,788.64 km) |
| Glenn Dale to Sorrento | 4,600.07 mi (7,403.10 km) |
| Glenn Dale to Sorso | 4,333.11 mi (6,973.47 km) |
| Glenn Dale to Sortino | 4,759.67 mi (7,659.96 km) |
| Glenn Dale to Soverato Marina | 4,770.30 mi (7,677.06 km) |
| Glenn Dale to Sovicille | 4,367.52 mi (7,028.85 km) |
