| Philadelphia to Cosham | 3,513.81 mi (5,654.93 km) |
| Philadelphia to Costessey | 3,567.13 mi (5,740.74 km) |
| Philadelphia to Cottingham | 3,479.67 mi (5,599.99 km) |
| Philadelphia to Coulsdon | 3,541.60 mi (5,699.66 km) |
| Philadelphia to Coventry | 3,463.09 mi (5,573.31 km) |
| Philadelphia to Cowdenbeath | 3,326.85 mi (5,354.05 km) |
| Philadelphia to Cowes | 3,505.89 mi (5,642.18 km) |
| Philadelphia to Cowley | 3,523.11 mi (5,669.90 km) |
| Philadelphia to Cowley | 3,488.81 mi (5,614.70 km) |
| Philadelphia to Cramlington | 3,410.38 mi (5,488.48 km) |
| Philadelphia to Cranleigh | 3,531.69 mi (5,683.70 km) |
| Philadelphia to Crawley | 3,544.26 mi (5,703.93 km) |
| Philadelphia to Crayford | 3,551.87 mi (5,716.18 km) |
| Philadelphia to Crewe | 3,412.48 mi (5,491.85 km) |
| Philadelphia to Crigglestone | 3,438.73 mi (5,534.10 km) |
