| Philadelphia to Cadiz | 3,646.55 mi (5,868.56 km) |
| Philadelphia to Calafell | 3,884.36 mi (6,251.28 km) |
| Philadelphia to Calahorra | 3,687.10 mi (5,933.82 km) |
| Philadelphia to Calasparra | 3,820.32 mi (6,148.22 km) |
| Philadelphia to Calatayud | 3,729.83 mi (6,002.58 km) |
| Philadelphia to Caldas de Montbuy | 3,898.94 mi (6,274.75 km) |
| Philadelphia to Caldas de Reyes | 3,364.68 mi (5,414.93 km) |
| Philadelphia to Calella | 3,922.42 mi (6,312.52 km) |
| Philadelphia to Callosa de Segura | 3,863.43 mi (6,217.59 km) |
| Philadelphia to Calpe | 3,891.50 mi (6,262.77 km) |
| Philadelphia to Calvia | 3,979.46 mi (6,404.32 km) |
| Philadelphia to Camas | 3,633.43 mi (5,847.44 km) |
| Philadelphia to Cambados | 3,359.51 mi (5,406.60 km) |
| Philadelphia to Cambre | 3,362.63 mi (5,411.64 km) |
| Philadelphia to Cambrils | 3,864.48 mi (6,219.28 km) |
