| Philadelphia to Cockermouth | 3,348.92 mi (5,389.56 km) |
| Philadelphia to Colchester | 3,571.42 mi (5,747.64 km) |
| Philadelphia to Coleford | 3,430.34 mi (5,520.59 km) |
| Philadelphia to Colne | 3,409.13 mi (5,486.46 km) |
| Philadelphia to Colwyn Bay | 3,358.68 mi (5,405.28 km) |
| Philadelphia to Congleton | 3,420.21 mi (5,504.29 km) |
| Philadelphia to Conisbrough | 3,453.52 mi (5,557.91 km) |
| Philadelphia to Connahs Quay | 3,385.65 mi (5,448.68 km) |
| Philadelphia to Consett | 3,404.99 mi (5,479.81 km) |
| Philadelphia to Conwy | 3,353.66 mi (5,397.19 km) |
| Philadelphia to Cookstown | 3,217.10 mi (5,177.42 km) |
| Philadelphia to Corby | 3,494.08 mi (5,623.18 km) |
| Philadelphia to Corfe Mullen | 3,475.84 mi (5,593.82 km) |
| Philadelphia to Corsham | 3,455.18 mi (5,560.58 km) |
| Philadelphia to Coseley | 3,437.21 mi (5,531.66 km) |
