| Knoxville to Corato | 5,107.25 mi (8,219.32 km) |
| Knoxville to Corbetta | 4,631.08 mi (7,453.01 km) |
| Knoxville to Corciano | 4,855.78 mi (7,814.63 km) |
| Knoxville to Cordenons | 4,772.12 mi (7,679.98 km) |
| Knoxville to Cori | 4,937.12 mi (7,945.53 km) |
| Knoxville to Coriano | 4,839.48 mi (7,788.40 km) |
| Knoxville to Corigliano Calabro | 5,172.61 mi (8,324.51 km) |
| Knoxville to Corleone | 5,097.21 mi (8,203.17 km) |
| Knoxville to Cormano | 4,638.94 mi (7,465.66 km) |
| Knoxville to Cornaredo | 4,634.94 mi (7,459.21 km) |
| Knoxville to Cornate d'Adda | 4,648.33 mi (7,480.76 km) |
| Knoxville to Cornedo Vicentino | 4,728.73 mi (7,610.15 km) |
| Knoxville to Correggio | 4,733.95 mi (7,618.55 km) |
| Knoxville to Corridonia | 4,904.48 mi (7,893.00 km) |
| Knoxville to Corsico | 4,640.70 mi (7,468.48 km) |
