| Kennewick to Cortona | 5,569.96 mi (8,963.98 km) |
| Kennewick to Cosenza | 5,918.84 mi (9,525.45 km) |
| Kennewick to Cossato | 5,334.40 mi (8,584.89 km) |
| Kennewick to Costa Volpino | 5,371.13 mi (8,644.01 km) |
| Kennewick to Creazzo | 5,424.61 mi (8,730.07 km) |
| Kennewick to Crema | 5,386.86 mi (8,669.31 km) |
| Kennewick to Cremona | 5,409.68 mi (8,706.05 km) |
| Kennewick to Crevalcore | 5,463.50 mi (8,792.66 km) |
| Kennewick to Crispiano | 5,865.37 mi (9,439.39 km) |
| Kennewick to Crosia | 5,916.10 mi (9,521.04 km) |
| Kennewick to Crotone | 5,954.38 mi (9,582.64 km) |
| Kennewick to Cuneo | 5,384.76 mi (8,665.94 km) |
| Kennewick to Cuorgne | 5,330.30 mi (8,578.28 km) |
| Kennewick to Cusano Milanino | 5,362.90 mi (8,630.75 km) |
| Kennewick to Cutro | 5,953.98 mi (9,582.01 km) |
