| Naperville to Cortona | 4,757.60 mi (7,656.61 km) |
| Naperville to Cosenza | 5,103.15 mi (8,212.73 km) |
| Naperville to Cossato | 4,511.85 mi (7,261.12 km) |
| Naperville to Costa Volpino | 4,576.87 mi (7,365.77 km) |
| Naperville to Creazzo | 4,642.74 mi (7,471.76 km) |
| Naperville to Crema | 4,579.58 mi (7,370.12 km) |
| Naperville to Cremona | 4,602.84 mi (7,407.56 km) |
| Naperville to Crevalcore | 4,663.83 mi (7,505.71 km) |
| Naperville to Crispiano | 5,082.97 mi (8,180.25 km) |
| Naperville to Crosia | 5,111.70 mi (8,226.48 km) |
| Naperville to Crotone | 5,147.85 mi (8,284.66 km) |
| Naperville to Cuneo | 4,534.58 mi (7,297.70 km) |
| Naperville to Cuorgne | 4,498.43 mi (7,239.53 km) |
| Naperville to Cusano Milanino | 4,552.53 mi (7,326.59 km) |
| Naperville to Cutro | 5,144.79 mi (8,279.74 km) |
