| Opelousas to Carmona | 4,797.28 mi (7,720.47 km) |
| Opelousas to Cartagena | 5,025.45 mi (8,087.67 km) |
| Opelousas to Cartama | 4,868.85 mi (7,835.66 km) |
| Opelousas to Cartaya | 4,725.56 mi (7,605.05 km) |
| Opelousas to Caspe | 4,963.84 mi (7,988.54 km) |
| Opelousas to Cassa de la Selva | 5,079.51 mi (8,174.68 km) |
| Opelousas to Castalla | 5,011.03 mi (8,064.47 km) |
| Opelousas to Castellbisbal | 5,050.88 mi (8,128.60 km) |
| Opelousas to Castelldefels | 5,056.60 mi (8,137.82 km) |
| Opelousas to Castello de Ampurias | 5,077.34 mi (8,171.19 km) |
| Opelousas to Castellon de la Plana | 5,000.67 mi (8,047.81 km) |
| Opelousas to Castilleja de la Cuesta | 4,778.54 mi (7,690.32 km) |
| Opelousas to Catarroja | 5,000.04 mi (8,046.78 km) |
| Opelousas to Catral | 5,017.47 mi (8,074.84 km) |
| Opelousas to Caudete | 4,992.37 mi (8,034.44 km) |
