| Cayce to Sesena | 4,151.43 mi (6,681.08 km) |
| Cayce to Sestao | 4,108.19 mi (6,611.49 km) |
| Cayce to Sevilla | 4,107.71 mi (6,610.72 km) |
| Cayce to Sevilla La Nueva | 4,129.14 mi (6,645.21 km) |
| Cayce to Silla | 4,332.61 mi (6,972.66 km) |
| Cayce to Silleda | 3,870.74 mi (6,229.36 km) |
| Cayce to Sitges | 4,389.41 mi (7,064.08 km) |
| Cayce to Socuellamos | 4,216.59 mi (6,785.94 km) |
| Cayce to Soller | 4,473.25 mi (7,199.01 km) |
| Cayce to Solsona | 4,355.34 mi (7,009.25 km) |
| Cayce to Son Servera | 4,509.37 mi (7,257.13 km) |
| Cayce to Sonseca | 4,148.96 mi (6,677.10 km) |
| Cayce to Sopelana | 4,107.81 mi (6,610.88 km) |
| Cayce to Soria | 4,170.66 mi (6,712.03 km) |
| Cayce to Suances | 4,055.88 mi (6,527.30 km) |
