| Howard to Cognac | 4,045.93 mi (6,511.30 km) |
| Howard to Cogolin | 4,418.96 mi (7,111.63 km) |
| Howard to Colmar | 4,249.92 mi (6,839.59 km) |
| Howard to Colombes | 4,024.70 mi (6,477.13 km) |
| Howard to Colomiers | 4,194.69 mi (6,750.70 km) |
| Howard to Combs-la-Ville | 4,046.02 mi (6,511.45 km) |
| Howard to Comines | 3,984.18 mi (6,411.92 km) |
| Howard to Compiegne | 4,027.75 mi (6,482.04 km) |
| Howard to Concarneau | 3,822.17 mi (6,151.18 km) |
| Howard to Conde-sur-l'Escaut | 4,017.34 mi (6,465.28 km) |
| Howard to Conflans-Sainte-Honorine | 4,016.00 mi (6,463.13 km) |
| Howard to Corbas | 4,254.54 mi (6,847.03 km) |
| Howard to Corbeil-Essonnes | 4,045.18 mi (6,510.10 km) |
| Howard to Cormeilles-en-Parisis | 4,020.87 mi (6,470.97 km) |
| Howard to Cosne sur Loire | 4,108.46 mi (6,611.92 km) |
