| Arouca to Sestu | 921.43 mi (1,482.90 km) |
| Arouca to Settimo Torinese | 857.36 mi (1,379.78 km) |
| Arouca to Seveso | 930.49 mi (1,497.47 km) |
| Arouca to Sezze | 1,105.52 mi (1,779.17 km) |
| Arouca to Siano | 1,195.15 mi (1,923.40 km) |
| Arouca to Siena | 1,014.19 mi (1,632.18 km) |
| Arouca to Signa | 1,004.66 mi (1,616.84 km) |
| Arouca to Silea | 1,079.77 mi (1,737.72 km) |
| Arouca to Silvi Paese | 1,154.85 mi (1,858.54 km) |
| Arouca to Sinalunga | 1,034.11 mi (1,664.25 km) |
| Arouca to Siniscola | 937.71 mi (1,509.10 km) |
| Arouca to Sinnai | 927.19 mi (1,492.16 km) |
| Arouca to Siracusa | 1,287.29 mi (2,071.70 km) |
| Arouca to Solaro | 927.50 mi (1,492.66 km) |
| Arouca to Soliera | 1,003.53 mi (1,615.03 km) |
