| Niles to Sesena | 4,193.18 mi (6,748.28 km) |
| Niles to Sestao | 4,108.06 mi (6,611.29 km) |
| Niles to Sevilla | 4,194.39 mi (6,750.22 km) |
| Niles to Sevilla La Nueva | 4,169.47 mi (6,710.12 km) |
| Niles to Silla | 4,367.67 mi (7,029.09 km) |
| Niles to Silleda | 3,899.73 mi (6,276.01 km) |
| Niles to Sitges | 4,392.51 mi (7,069.07 km) |
| Niles to Socuellamos | 4,263.77 mi (6,861.88 km) |
| Niles to Soller | 4,488.67 mi (7,223.81 km) |
| Niles to Solsona | 4,351.03 mi (7,002.31 km) |
| Niles to Son Servera | 4,523.17 mi (7,279.34 km) |
| Niles to Sonseca | 4,196.70 mi (6,753.93 km) |
| Niles to Sopelana | 4,106.71 mi (6,609.11 km) |
| Niles to Soria | 4,186.94 mi (6,738.23 km) |
| Niles to Suances | 4,058.58 mi (6,531.66 km) |
