| Casaluce to Sestao | 893.95 mi (1,438.68 km) |
| Casaluce to Sevilla | 1,110.27 mi (1,786.81 km) |
| Casaluce to Sevilla La Nueva | 954.56 mi (1,536.21 km) |
| Casaluce to Silla | 778.57 mi (1,252.98 km) |
| Casaluce to Silleda | 1,157.10 mi (1,862.18 km) |
| Casaluce to Sitges | 644.89 mi (1,037.85 km) |
| Casaluce to Socuellamos | 903.79 mi (1,454.51 km) |
| Casaluce to Soller | 610.76 mi (982.92 km) |
| Casaluce to Solsona | 659.28 mi (1,061.00 km) |
| Casaluce to Son Servera | 578.63 mi (931.21 km) |
| Casaluce to Sonseca | 958.18 mi (1,542.04 km) |
| Casaluce to Sopelana | 893.02 mi (1,437.17 km) |
| Casaluce to Soria | 864.28 mi (1,390.93 km) |
| Casaluce to Suances | 946.88 mi (1,523.86 km) |
| Casaluce to Sueca | 775.97 mi (1,248.80 km) |
