| Harsum to Sestao | 857.99 mi (1,380.79 km) |
| Harsum to Sevilla | 1,290.94 mi (2,077.57 km) |
| Harsum to Sevilla La Nueva | 1,053.35 mi (1,695.20 km) |
| Harsum to Silla | 1,016.09 mi (1,635.25 km) |
| Harsum to Silleda | 1,069.10 mi (1,720.55 km) |
| Harsum to Sitges | 849.57 mi (1,367.24 km) |
| Harsum to Socuellamos | 1,080.07 mi (1,738.21 km) |
| Harsum to Soller | 926.28 mi (1,490.71 km) |
| Harsum to Solsona | 808.32 mi (1,300.87 km) |
| Harsum to Son Servera | 924.64 mi (1,488.06 km) |
| Harsum to Sonseca | 1,088.32 mi (1,751.48 km) |
| Harsum to Sopelana | 853.39 mi (1,373.40 km) |
| Harsum to Soria | 926.45 mi (1,490.98 km) |
| Harsum to Suances | 885.90 mi (1,425.72 km) |
| Harsum to Sueca | 1,023.74 mi (1,647.54 km) |
