| Ionia to Corato | 4,849.20 mi (7,804.04 km) |
| Ionia to Corbetta | 4,369.46 mi (7,031.97 km) |
| Ionia to Corciano | 4,599.13 mi (7,401.58 km) |
| Ionia to Cordenons | 4,496.01 mi (7,235.62 km) |
| Ionia to Cori | 4,687.92 mi (7,544.47 km) |
| Ionia to Coriano | 4,576.49 mi (7,365.15 km) |
| Ionia to Corigliano Calabro | 4,923.54 mi (7,923.67 km) |
| Ionia to Corleone | 4,871.01 mi (7,839.14 km) |
| Ionia to Cormano | 4,376.03 mi (7,042.55 km) |
| Ionia to Cornaredo | 4,372.75 mi (7,037.27 km) |
| Ionia to Cornate d'Adda | 4,383.87 mi (7,055.16 km) |
| Ionia to Cornedo Vicentino | 4,458.95 mi (7,175.98 km) |
| Ionia to Correggio | 4,471.38 mi (7,195.99 km) |
| Ionia to Corridonia | 4,643.11 mi (7,472.36 km) |
| Ionia to Corsico | 4,378.71 mi (7,046.86 km) |
