| Slidell to Collegno | 5,098.82 mi (8,205.76 km) |
| Slidell to Cologno al Serio | 5,174.36 mi (8,327.33 km) |
| Slidell to Cologno Monzese | 5,158.12 mi (8,301.19 km) |
| Slidell to Colorno | 5,224.95 mi (8,408.74 km) |
| Slidell to Comacchio | 5,309.80 mi (8,545.29 km) |
| Slidell to Comiso | 5,695.25 mi (9,165.62 km) |
| Slidell to Como | 5,140.84 mi (8,273.38 km) |
| Slidell to Concordia Sagittaria | 5,301.13 mi (8,531.35 km) |
| Slidell to Concorezzo | 5,158.61 mi (8,301.98 km) |
| Slidell to Conegliano | 5,273.93 mi (8,487.56 km) |
| Slidell to Conselice | 5,301.13 mi (8,531.35 km) |
| Slidell to Conselve | 5,278.10 mi (8,494.29 km) |
| Slidell to Conversano | 5,657.83 mi (9,105.40 km) |
| Slidell to Copertino | 5,725.40 mi (9,214.14 km) |
| Slidell to Copparo | 5,288.04 mi (8,510.28 km) |
