| Champaign to Cortona | 4,834.55 mi (7,780.45 km) |
| Champaign to Cosenza | 5,178.46 mi (8,333.92 km) |
| Champaign to Cossato | 4,589.19 mi (7,385.58 km) |
| Champaign to Costa Volpino | 4,655.75 mi (7,492.71 km) |
| Champaign to Creazzo | 4,722.12 mi (7,599.51 km) |
| Champaign to Crema | 4,657.61 mi (7,495.70 km) |
| Champaign to Cremona | 4,680.81 mi (7,533.03 km) |
| Champaign to Crevalcore | 4,741.99 mi (7,631.50 km) |
| Champaign to Crispiano | 5,160.51 mi (8,305.03 km) |
| Champaign to Crosia | 5,187.71 mi (8,348.81 km) |
| Champaign to Crotone | 5,223.57 mi (8,406.53 km) |
| Champaign to Cuneo | 4,609.97 mi (7,419.03 km) |
| Champaign to Cuorgne | 4,575.21 mi (7,363.09 km) |
| Champaign to Cusano Milanino | 4,630.48 mi (7,452.04 km) |
| Champaign to Cutro | 5,220.35 mi (8,401.34 km) |
