| Omurtag to Cartagena | 1,484.59 mi (2,389.21 km) |
| Omurtag to Cartama | 1,693.05 mi (2,724.70 km) |
| Omurtag to Cartaya | 1,803.84 mi (2,903.00 km) |
| Omurtag to Caspe | 1,355.03 mi (2,180.71 km) |
| Omurtag to Cassa de la Selva | 1,198.36 mi (1,928.57 km) |
| Omurtag to Castalla | 1,442.80 mi (2,321.97 km) |
| Omurtag to Castellbisbal | 1,249.51 mi (2,010.89 km) |
| Omurtag to Castelldefels | 1,252.99 mi (2,016.50 km) |
| Omurtag to Castello de Ampurias | 1,183.26 mi (1,904.27 km) |
| Omurtag to Castellon de la Plana | 1,378.81 mi (2,218.98 km) |
| Omurtag to Castilleja de la Cuesta | 1,745.63 mi (2,809.32 km) |
| Omurtag to Catarroja | 1,410.20 mi (2,269.49 km) |
| Omurtag to Catral | 1,460.71 mi (2,350.78 km) |
| Omurtag to Caudete | 1,456.13 mi (2,343.41 km) |
| Omurtag to Cehegin | 1,512.48 mi (2,434.10 km) |
