| Opelika to Carmona | 4,382.74 mi (7,053.33 km) |
| Opelika to Cartagena | 4,613.36 mi (7,424.48 km) |
| Opelika to Cartama | 4,453.78 mi (7,167.67 km) |
| Opelika to Cartaya | 4,310.15 mi (6,936.52 km) |
| Opelika to Caspe | 4,558.55 mi (7,336.28 km) |
| Opelika to Cassa de la Selva | 4,677.59 mi (7,527.86 km) |
| Opelika to Castalla | 4,600.64 mi (7,404.02 km) |
| Opelika to Castellbisbal | 4,647.45 mi (7,479.35 km) |
| Opelika to Castelldefels | 4,652.78 mi (7,487.93 km) |
| Opelika to Castello de Ampurias | 4,676.36 mi (7,525.87 km) |
| Opelika to Castellon de la Plana | 4,593.03 mi (7,391.77 km) |
| Opelika to Castilleja de la Cuesta | 4,363.71 mi (7,022.72 km) |
| Opelika to Catarroja | 4,591.15 mi (7,388.74 km) |
| Opelika to Catral | 4,606.32 mi (7,413.16 km) |
| Opelika to Caudete | 4,581.98 mi (7,373.98 km) |
