| Philadelphia to Corato | 4,556.40 mi (7,332.81 km) |
| Philadelphia to Corbetta | 4,081.49 mi (6,568.52 km) |
| Philadelphia to Corciano | 4,305.01 mi (6,928.24 km) |
| Philadelphia to Cordenons | 4,225.39 mi (6,800.11 km) |
| Philadelphia to Cori | 4,385.13 mi (7,057.19 km) |
| Philadelphia to Coriano | 4,289.85 mi (6,903.84 km) |
| Philadelphia to Corigliano Calabro | 4,620.38 mi (7,435.78 km) |
| Philadelphia to Corleone | 4,542.89 mi (7,311.08 km) |
| Philadelphia to Cormano | 4,089.58 mi (6,581.55 km) |
| Philadelphia to Cornaredo | 4,085.44 mi (6,574.88 km) |
| Philadelphia to Cornate d'Adda | 4,099.26 mi (6,597.12 km) |
| Philadelphia to Cornedo Vicentino | 4,180.63 mi (6,728.08 km) |
| Philadelphia to Correggio | 4,184.38 mi (6,734.10 km) |
| Philadelphia to Corridonia | 4,354.45 mi (7,007.82 km) |
| Philadelphia to Corsico | 4,091.15 mi (6,584.07 km) |
