| Willow Grove to Collegno | 4,029.38 mi (6,484.66 km) |
| Willow Grove to Cologno al Serio | 4,105.03 mi (6,606.40 km) |
| Willow Grove to Cologno Monzese | 4,088.73 mi (6,580.17 km) |
| Willow Grove to Colorno | 4,155.53 mi (6,687.68 km) |
| Willow Grove to Comacchio | 4,240.48 mi (6,824.40 km) |
| Willow Grove to Comiso | 4,629.89 mi (7,451.08 km) |
| Willow Grove to Como | 4,071.51 mi (6,552.46 km) |
| Willow Grove to Concordia Sagittaria | 4,232.46 mi (6,811.49 km) |
| Willow Grove to Concorezzo | 4,089.24 mi (6,580.99 km) |
| Willow Grove to Conegliano | 4,205.19 mi (6,767.60 km) |
| Willow Grove to Conselice | 4,231.74 mi (6,810.32 km) |
| Willow Grove to Conselve | 4,208.93 mi (6,773.62 km) |
| Willow Grove to Conversano | 4,588.39 mi (7,384.30 km) |
| Willow Grove to Copertino | 4,655.99 mi (7,493.10 km) |
| Willow Grove to Copparo | 4,218.75 mi (6,789.42 km) |
