| Knightdale to Cividale del Friuli | 4,578.67 mi (7,368.66 km) |
| Knightdale to Civita Castellana | 4,657.83 mi (7,496.05 km) |
| Knightdale to Civitanova Marche | 4,683.34 mi (7,537.10 km) |
| Knightdale to Civitavecchia | 4,636.82 mi (7,462.24 km) |
| Knightdale to Civitella in Val di Chiana | 4,590.34 mi (7,387.43 km) |
| Knightdale to Clusone | 4,436.05 mi (7,139.14 km) |
| Knightdale to Coccaglio | 4,446.92 mi (7,156.62 km) |
| Knightdale to Codigoro | 4,562.59 mi (7,342.77 km) |
| Knightdale to Codogno | 4,447.17 mi (7,157.03 km) |
| Knightdale to Codroipo | 4,563.76 mi (7,344.67 km) |
| Knightdale to Cogoleto | 4,423.59 mi (7,119.09 km) |
| Knightdale to Colle di Val d'Elsa | 4,564.92 mi (7,346.53 km) |
| Knightdale to Colle Salvetti | 4,529.63 mi (7,289.74 km) |
| Knightdale to Collecchio | 4,482.12 mi (7,213.27 km) |
| Knightdale to Colleferro | 4,703.86 mi (7,570.12 km) |
