| Ashburn to Sesena | 3,809.33 mi (6,130.52 km) |
| Ashburn to Sestao | 3,752.80 mi (6,039.55 km) |
| Ashburn to Sevilla | 3,781.18 mi (6,085.22 km) |
| Ashburn to Sevilla La Nueva | 3,786.48 mi (6,093.75 km) |
| Ashburn to Silla | 3,989.04 mi (6,419.74 km) |
| Ashburn to Silleda | 3,523.28 mi (5,670.17 km) |
| Ashburn to Sitges | 4,036.07 mi (6,495.43 km) |
| Ashburn to Socuellamos | 3,876.57 mi (6,238.73 km) |
| Ashburn to Soller | 4,123.97 mi (6,636.89 km) |
| Ashburn to Solsona | 3,999.68 mi (6,436.86 km) |
| Ashburn to Son Servera | 4,159.72 mi (6,694.43 km) |
| Ashburn to Sonseca | 3,808.85 mi (6,129.74 km) |
| Ashburn to Sopelana | 3,752.13 mi (6,038.47 km) |
| Ashburn to Soria | 3,820.48 mi (6,148.47 km) |
| Ashburn to Suances | 3,701.11 mi (5,956.37 km) |
