| Philadelphia to Carrollwood (Florida) | 926.67 mi (1,491.33 km) |
| Philadelphia to Carson (California) | 2,396.01 mi (3,856.01 km) |
| Philadelphia to Carson City (Nevada) | 2,351.31 mi (3,784.07 km) |
| Philadelphia to Carteret (New Jersey) | 62.19 mi (100.08 km) |
| Philadelphia to Cartersville (Georgia) | 667.82 mi (1,074.76 km) |
| Philadelphia to Carthage (Missouri) | 1,052.91 mi (1,694.50 km) |
| Philadelphia to Cary (Illinois) | 698.80 mi (1,124.60 km) |
| Philadelphia to Cary (North Carolina) | 354.37 mi (570.30 km) |
| Philadelphia to Casa de Oro-Mount Helix (California) | 2,357.79 mi (3,794.49 km) |
| Philadelphia to Casa Grande (Arizona) | 2,078.23 mi (3,344.59 km) |
| Philadelphia to Casas Adobes (Arizona) | 2,054.84 mi (3,306.94 km) |
| Philadelphia to Cascades (Virginia) | 137.23 mi (220.86 km) |
| Philadelphia to Casper (Wyoming) | 1,618.20 mi (2,604.24 km) |
| Philadelphia to Casselberry (Florida) | 859.12 mi (1,382.63 km) |
| Philadelphia to Castaic (California) | 2,398.71 mi (3,860.34 km) |
