| Willow Grove to Cortona | 4,281.04 mi (6,889.66 km) |
| Willow Grove to Cosenza | 4,614.08 mi (7,425.64 km) |
| Willow Grove to Cossato | 4,039.74 mi (6,501.34 km) |
| Willow Grove to Costa Volpino | 4,114.07 mi (6,620.95 km) |
| Willow Grove to Creazzo | 4,182.62 mi (6,731.27 km) |
| Willow Grove to Crema | 4,111.31 mi (6,616.52 km) |
| Willow Grove to Cremona | 4,133.92 mi (6,652.91 km) |
| Willow Grove to Crevalcore | 4,195.66 mi (6,752.27 km) |
| Willow Grove to Crispiano | 4,607.51 mi (7,415.06 km) |
| Willow Grove to Crosia | 4,626.73 mi (7,446.01 km) |
| Willow Grove to Crotone | 4,660.93 mi (7,501.05 km) |
| Willow Grove to Cuneo | 4,050.32 mi (6,518.36 km) |
| Willow Grove to Cuorgne | 4,022.97 mi (6,474.34 km) |
| Willow Grove to Cusano Milanino | 4,083.97 mi (6,572.51 km) |
| Willow Grove to Cutro | 4,656.94 mi (7,494.62 km) |
