| Omagh to Carmona | 1,185.69 mi (1,908.18 km) |
| Omagh to Cartagena | 1,210.98 mi (1,948.89 km) |
| Omagh to Cartama | 1,241.73 mi (1,998.37 km) |
| Omagh to Cartaya | 1,195.80 mi (1,924.45 km) |
| Omagh to Caspe | 980.88 mi (1,578.57 km) |
| Omagh to Cassa de la Selva | 992.09 mi (1,596.61 km) |
| Omagh to Castalla | 1,147.60 mi (1,846.89 km) |
| Omagh to Castellbisbal | 1,000.22 mi (1,609.69 km) |
| Omagh to Castelldefels | 1,012.73 mi (1,629.83 km) |
| Omagh to Castello de Ampurias | 973.28 mi (1,566.34 km) |
| Omagh to Castellon de la Plana | 1,063.63 mi (1,711.75 km) |
| Omagh to Castilleja de la Cuesta | 1,190.31 mi (1,915.62 km) |
| Omagh to Catarroja | 1,097.07 mi (1,765.57 km) |
| Omagh to Catral | 1,175.36 mi (1,891.55 km) |
| Omagh to Caudete | 1,136.44 mi (1,828.92 km) |
