| Ariano Irpino to Settimo Torinese | 460.02 mi (740.33 km) |
| Ariano Irpino to Seveso | 430.50 mi (692.83 km) |
| Ariano Irpino to Sezze | 107.63 mi (173.21 km) |
| Ariano Irpino to Siano | 31.77 mi (51.13 km) |
| Ariano Irpino to Siena | 243.54 mi (391.94 km) |
| Ariano Irpino to Signa | 272.64 mi (438.77 km) |
| Ariano Irpino to Silea | 341.12 mi (548.97 km) |
| Ariano Irpino to Silvi Paese | 108.73 mi (174.99 km) |
| Ariano Irpino to Sinalunga | 223.24 mi (359.26 km) |
| Ariano Irpino to Siniscola | 284.55 mi (457.94 km) |
| Ariano Irpino to Sinnai | 335.68 mi (540.23 km) |
| Ariano Irpino to Siracusa | 282.35 mi (454.40 km) |
| Ariano Irpino to Solaro | 431.01 mi (693.65 km) |
| Ariano Irpino to Soliera | 325.06 mi (523.14 km) |
| Ariano Irpino to Solofra | 25.35 mi (40.79 km) |
