| Harpenden to Sabadell | 718.94 mi (1,157.02 km) |
| Harpenden to Sabinanigo | 642.49 mi (1,033.99 km) |
| Harpenden to Sagunto | 838.88 mi (1,350.04 km) |
| Harpenden to Salamanca | 790.87 mi (1,272.79 km) |
| Harpenden to Salobrena | 1,053.24 mi (1,695.02 km) |
| Harpenden to Salou | 745.23 mi (1,199.33 km) |
| Harpenden to Salt | 695.78 mi (1,119.75 km) |
| Harpenden to Salvatierra de Mino | 773.50 mi (1,244.84 km) |
| Harpenden to Sama | 638.41 mi (1,027.43 km) |
| Harpenden to San Adrian de Besos | 727.84 mi (1,171.35 km) |
| Harpenden to San Agustin de Guadalix | 785.08 mi (1,263.46 km) |
| Harpenden to San Andres de la Barca | 724.85 mi (1,166.53 km) |
| Harpenden to San Andres de Llevaneras | 720.30 mi (1,159.21 km) |
| Harpenden to San Andres del Rabanedo | 681.30 mi (1,096.45 km) |
| Harpenden to San Bartolome | 1,829.04 mi (2,943.56 km) |
