| Omagh to Cortona | 1,166.35 mi (1,877.07 km) |
| Omagh to Cosenza | 1,518.93 mi (2,444.49 km) |
| Omagh to Cossato | 922.81 mi (1,485.12 km) |
| Omagh to Costa Volpino | 974.01 mi (1,567.52 km) |
| Omagh to Creazzo | 1,036.19 mi (1,667.58 km) |
| Omagh to Crema | 982.84 mi (1,581.73 km) |
| Omagh to Cremona | 1,006.26 mi (1,619.41 km) |
| Omagh to Crevalcore | 1,064.73 mi (1,713.52 km) |
| Omagh to Crispiano | 1,482.97 mi (2,386.61 km) |
| Omagh to Crosia | 1,521.74 mi (2,449.01 km) |
| Omagh to Crotone | 1,559.49 mi (2,509.76 km) |
| Omagh to Cuneo | 966.21 mi (1,554.97 km) |
| Omagh to Cuorgne | 915.47 mi (1,473.30 km) |
| Omagh to Cusano Milanino | 956.99 mi (1,540.12 km) |
| Omagh to Cutro | 1,557.74 mi (2,506.94 km) |
