| Opava to Cartagena | 1,264.09 mi (2,034.36 km) |
| Opava to Cartama | 1,445.47 mi (2,326.25 km) |
| Opava to Cartaya | 1,516.47 mi (2,440.52 km) |
| Opava to Caspe | 1,051.16 mi (1,691.68 km) |
| Opava to Cassa de la Selva | 908.93 mi (1,462.77 km) |
| Opava to Castalla | 1,201.85 mi (1,934.19 km) |
| Opava to Castellbisbal | 962.06 mi (1,548.29 km) |
| Opava to Castelldefels | 971.56 mi (1,563.57 km) |
| Opava to Castello de Ampurias | 884.15 mi (1,422.90 km) |
| Opava to Castellon de la Plana | 1,109.63 mi (1,785.78 km) |
| Opava to Castilleja de la Cuesta | 1,467.88 mi (2,362.32 km) |
| Opava to Catarroja | 1,151.87 mi (1,853.76 km) |
| Opava to Catral | 1,228.93 mi (1,977.77 km) |
| Opava to Caudete | 1,208.27 mi (1,944.52 km) |
| Opava to Cehegin | 1,269.17 mi (2,042.53 km) |
