| Naperville to Collegno | 4,507.77 mi (7,254.55 km) |
| Naperville to Cologno al Serio | 4,571.41 mi (7,356.97 km) |
| Naperville to Cologno Monzese | 4,557.12 mi (7,333.98 km) |
| Naperville to Colorno | 4,624.80 mi (7,442.90 km) |
| Naperville to Comacchio | 4,704.82 mi (7,571.67 km) |
| Naperville to Comiso | 5,142.23 mi (8,275.63 km) |
| Naperville to Como | 4,538.21 mi (7,303.54 km) |
| Naperville to Concordia Sagittaria | 4,685.38 mi (7,540.40 km) |
| Naperville to Concorezzo | 4,556.90 mi (7,333.63 km) |
| Naperville to Conegliano | 4,659.23 mi (7,498.31 km) |
| Naperville to Conselice | 4,698.92 mi (7,562.19 km) |
| Naperville to Conselve | 4,670.09 mi (7,515.79 km) |
| Naperville to Conversano | 5,061.65 mi (8,145.95 km) |
| Naperville to Copertino | 5,130.37 mi (8,256.53 km) |
| Naperville to Copparo | 4,682.79 mi (7,536.22 km) |
