| Kennewick to Cividale del Friuli | 5,440.91 mi (8,756.29 km) |
| Kennewick to Civita Castellana | 5,638.77 mi (9,074.73 km) |
| Kennewick to Civitanova Marche | 5,614.21 mi (9,035.20 km) |
| Kennewick to Civitavecchia | 5,633.88 mi (9,066.85 km) |
| Kennewick to Civitella in Val di Chiana | 5,554.47 mi (8,939.05 km) |
| Kennewick to Clusone | 5,364.15 mi (8,632.76 km) |
| Kennewick to Coccaglio | 5,383.37 mi (8,663.70 km) |
| Kennewick to Codigoro | 5,481.98 mi (8,822.39 km) |
| Kennewick to Codogno | 5,399.36 mi (8,689.43 km) |
| Kennewick to Codroipo | 5,437.66 mi (8,751.06 km) |
| Kennewick to Cogoleto | 5,414.87 mi (8,714.40 km) |
| Kennewick to Colle di Val d'Elsa | 5,539.83 mi (8,915.49 km) |
| Kennewick to Colle Salvetti | 5,510.64 mi (8,868.52 km) |
| Kennewick to Collecchio | 5,436.76 mi (8,749.63 km) |
| Kennewick to Colleferro | 5,688.19 mi (9,154.25 km) |
