| Denver to Cividale del Friuli | 5,388.56 mi (8,672.04 km) |
| Denver to Civita Castellana | 5,543.07 mi (8,920.70 km) |
| Denver to Civitanova Marche | 5,539.03 mi (8,914.21 km) |
| Denver to Civitavecchia | 5,531.09 mi (8,901.43 km) |
| Denver to Civitella in Val di Chiana | 5,463.06 mi (8,791.94 km) |
| Denver to Clusone | 5,281.30 mi (8,499.43 km) |
| Denver to Coccaglio | 5,297.69 mi (8,525.80 km) |
| Denver to Codigoro | 5,407.03 mi (8,701.77 km) |
| Denver to Codogno | 5,307.58 mi (8,541.73 km) |
| Denver to Codroipo | 5,380.29 mi (8,658.75 km) |
| Denver to Cogoleto | 5,307.03 mi (8,540.85 km) |
| Denver to Colle di Val d'Elsa | 5,443.32 mi (8,760.17 km) |
| Denver to Colle Salvetti | 5,410.51 mi (8,707.38 km) |
| Denver to Collecchio | 5,345.27 mi (8,602.39 km) |
| Denver to Colleferro | 5,592.70 mi (9,000.58 km) |
