| Slidell to Cognac | 4,732.09 mi (7,615.56 km) |
| Slidell to Cogolin | 5,109.60 mi (8,223.11 km) |
| Slidell to Colmar | 4,997.22 mi (8,042.26 km) |
| Slidell to Colombes | 4,760.28 mi (7,660.94 km) |
| Slidell to Colomiers | 4,863.17 mi (7,826.52 km) |
| Slidell to Combs-la-Ville | 4,779.93 mi (7,692.55 km) |
| Slidell to Comines | 4,743.36 mi (7,633.70 km) |
| Slidell to Compiegne | 4,771.17 mi (7,678.45 km) |
| Slidell to Concarneau | 4,520.58 mi (7,275.17 km) |
| Slidell to Conde-sur-l'Escaut | 4,775.20 mi (7,684.95 km) |
| Slidell to Conflans-Sainte-Honorine | 4,751.84 mi (7,647.35 km) |
| Slidell to Corbas | 4,964.44 mi (7,989.49 km) |
| Slidell to Corbeil-Essonnes | 4,778.13 mi (7,689.66 km) |
| Slidell to Cormeilles-en-Parisis | 4,756.83 mi (7,655.38 km) |
| Slidell to Cosne sur Loire | 4,829.41 mi (7,772.18 km) |
