| Philadelphia to Castrovillari | 4,598.07 mi (7,399.88 km) |
| Philadelphia to Catania | 4,636.74 mi (7,462.11 km) |
| Philadelphia to Catanzaro | 4,650.97 mi (7,485.01 km) |
| Philadelphia to Cattolica | 4,295.59 mi (6,913.08 km) |
| Philadelphia to Cava de' Tirreni | 4,498.52 mi (7,239.66 km) |
| Philadelphia to Cavallino | 4,666.75 mi (7,510.41 km) |
| Philadelphia to Cavarzere | 4,227.73 mi (6,803.88 km) |
| Philadelphia to Cave | 4,379.89 mi (7,048.75 km) |
| Philadelphia to Cavriago | 4,175.98 mi (6,720.60 km) |
| Philadelphia to Cavriglia | 4,256.94 mi (6,850.88 km) |
| Philadelphia to Cazzago San Martino | 4,125.37 mi (6,639.14 km) |
| Philadelphia to Ceccano | 4,406.49 mi (7,091.57 km) |
| Philadelphia to Cecina | 4,221.49 mi (6,793.83 km) |
| Philadelphia to Cefalu | 4,567.50 mi (7,350.69 km) |
| Philadelphia to Ceglie Messapico | 4,623.38 mi (7,440.60 km) |
