| Knightdale to Cosham | 3,841.65 mi (6,182.54 km) |
| Knightdale to Costessey | 3,899.51 mi (6,275.65 km) |
| Knightdale to Cottingham | 3,813.55 mi (6,137.32 km) |
| Knightdale to Coulsdon | 3,870.85 mi (6,229.53 km) |
| Knightdale to Coventry | 3,794.04 mi (6,105.91 km) |
| Knightdale to Cowdenbeath | 3,663.90 mi (5,896.48 km) |
| Knightdale to Cowes | 3,833.45 mi (6,169.34 km) |
| Knightdale to Cowley | 3,852.65 mi (6,200.24 km) |
| Knightdale to Cowley | 3,818.49 mi (6,145.26 km) |
| Knightdale to Cramlington | 3,746.16 mi (6,028.87 km) |
| Knightdale to Cranleigh | 3,860.41 mi (6,212.73 km) |
| Knightdale to Crawley | 3,873.05 mi (6,233.06 km) |
| Knightdale to Crayford | 3,881.51 mi (6,246.69 km) |
| Knightdale to Crewe | 3,744.48 mi (6,026.16 km) |
| Knightdale to Crigglestone | 3,772.04 mi (6,070.51 km) |
