| Solothurn to Castelletto sopra Ticino | 116.11 mi (186.86 km) |
| Solothurn to Castelli Calepio | 157.07 mi (252.77 km) |
| Solothurn to Castelnovo ne' Monti | 236.68 mi (380.90 km) |
| Solothurn to Castelnuovo Berardenga | 329.66 mi (530.54 km) |
| Solothurn to Castelnuovo di Porto | 427.48 mi (687.96 km) |
| Solothurn to Castelnuovo di Verona | 197.42 mi (317.71 km) |
| Solothurn to Castelnuovo Rangone | 246.31 mi (396.39 km) |
| Solothurn to Castelvetrano | 710.76 mi (1,143.86 km) |
| Solothurn to Castelvetro di Modena | 249.48 mi (401.49 km) |
| Solothurn to Castenaso | 266.15 mi (428.33 km) |
| Solothurn to Castenedolo | 178.67 mi (287.55 km) |
| Solothurn to Castiglion Fiorentino | 342.02 mi (550.43 km) |
| Solothurn to Castiglione del Lago | 357.27 mi (574.98 km) |
| Solothurn to Castiglione delle Stiviere | 189.20 mi (304.48 km) |
| Solothurn to Castrolibero | 697.71 mi (1,122.85 km) |
