| Onex to Chivasso | 110.19 mi (177.33 km) |
| Onex to Ciampino | 442.57 mi (712.25 km) |
| Onex to Cicciano | 554.53 mi (892.43 km) |
| Onex to Cingoli | 399.42 mi (642.81 km) |
| Onex to Cinisello Balsamo | 156.19 mi (251.37 km) |
| Onex to Cinisi | 659.15 mi (1,060.79 km) |
| Onex to Cirie | 97.62 mi (157.10 km) |
| Onex to Ciro Marina | 729.85 mi (1,174.57 km) |
| Onex to Cislago | 142.63 mi (229.54 km) |
| Onex to Cisterna di Latina | 461.14 mi (742.13 km) |
| Onex to Cisternino | 680.79 mi (1,095.63 km) |
| Onex to Citta di Castello | 354.87 mi (571.11 km) |
| Onex to Citta Sant'Angelo | 467.05 mi (751.65 km) |
| Onex to Cittadella | 275.60 mi (443.54 km) |
| Onex to Cittanova | 742.82 mi (1,195.45 km) |
