| Onex to Cassina de' Pecchi | 163.81 mi (263.62 km) |
| Onex to Cassino | 502.80 mi (809.18 km) |
| Onex to Castagneto Carducci | 303.76 mi (488.85 km) |
| Onex to Castano Primo | 135.55 mi (218.14 km) |
| Onex to Castel Bolognese | 305.69 mi (491.97 km) |
| Onex to Castel Gandolfo | 447.06 mi (719.48 km) |
| Onex to Castel Goffredo | 219.62 mi (353.44 km) |
| Onex to Castel Maggiore | 278.89 mi (448.82 km) |
| Onex to Castel Mella | 200.55 mi (322.76 km) |
| Onex to Castel San Giorgio | 569.57 mi (916.64 km) |
| Onex to Castel San Giovanni | 179.09 mi (288.22 km) |
| Onex to Castel San Pietro Terme | 293.54 mi (472.41 km) |
| Onex to Castel Volturno | 527.43 mi (848.82 km) |
| Onex to Castelbuono | 701.58 mi (1,129.09 km) |
| Onex to Casteldaccia | 678.23 mi (1,091.51 km) |
