| Champaign to Collegno | 4,584.08 mi (7,377.37 km) |
| Champaign to Cologno al Serio | 4,649.72 mi (7,483.01 km) |
| Champaign to Cologno Monzese | 4,635.10 mi (7,459.48 km) |
| Champaign to Colorno | 4,702.74 mi (7,568.33 km) |
| Champaign to Comacchio | 4,783.63 mi (7,698.51 km) |
| Champaign to Comiso | 5,213.44 mi (8,390.23 km) |
| Champaign to Como | 4,616.43 mi (7,429.43 km) |
| Champaign to Concordia Sagittaria | 4,765.90 mi (7,669.98 km) |
| Champaign to Concorezzo | 4,635.00 mi (7,459.31 km) |
| Champaign to Conegliano | 4,739.55 mi (7,627.57 km) |
| Champaign to Conselice | 4,777.29 mi (7,688.30 km) |
| Champaign to Conselve | 4,749.35 mi (7,643.34 km) |
| Champaign to Conversano | 5,139.52 mi (8,271.26 km) |
| Champaign to Copertino | 5,208.14 mi (8,381.69 km) |
| Champaign to Copparo | 4,761.62 mi (7,663.09 km) |
