| Siano to Sabinanigo | 785.23 mi (1,263.71 km) |
| Siano to Sagunto | 792.28 mi (1,275.06 km) |
| Siano to Salamanca | 1,061.12 mi (1,707.71 km) |
| Siano to Salobrena | 1,021.67 mi (1,644.23 km) |
| Siano to Salou | 707.41 mi (1,138.47 km) |
| Siano to Salt | 621.96 mi (1,000.95 km) |
| Siano to Salvatierra de Mino | 1,200.88 mi (1,932.62 km) |
| Siano to Sama | 1,056.89 mi (1,700.89 km) |
| Siano to San Adrian de Besos | 650.30 mi (1,046.56 km) |
| Siano to San Agustin de Guadalix | 956.79 mi (1,539.81 km) |
| Siano to San Andres de la Barca | 662.80 mi (1,066.67 km) |
| Siano to San Andres de Llevaneras | 636.65 mi (1,024.59 km) |
| Siano to San Andres del Rabanedo | 1,051.70 mi (1,692.54 km) |
| Siano to San Bartolome | 1,928.43 mi (3,103.50 km) |
| Siano to San Baudilio de Llobregat | 659.52 mi (1,061.39 km) |
