| Richardson to Corato | 5,781.34 mi (9,304.17 km) |
| Richardson to Corbetta | 5,301.84 mi (8,532.48 km) |
| Richardson to Corciano | 5,530.73 mi (8,900.84 km) |
| Richardson to Cordenons | 5,430.77 mi (8,739.98 km) |
| Richardson to Cori | 5,617.89 mi (9,041.12 km) |
| Richardson to Coriano | 5,509.33 mi (8,866.41 km) |
| Richardson to Corigliano Calabro | 5,853.75 mi (9,420.70 km) |
| Richardson to Corleone | 5,794.35 mi (9,325.11 km) |
| Richardson to Cormano | 5,308.66 mi (8,543.47 km) |
| Richardson to Cornaredo | 5,305.24 mi (8,537.96 km) |
| Richardson to Cornate d'Adda | 5,316.79 mi (8,556.55 km) |
| Richardson to Cornedo Vicentino | 5,392.83 mi (8,678.92 km) |
| Richardson to Correggio | 5,404.04 mi (8,696.95 km) |
| Richardson to Corridonia | 5,575.71 mi (8,973.23 km) |
| Richardson to Corsico | 5,311.17 mi (8,547.50 km) |
