| Omagh to Collegno | 929.51 mi (1,495.91 km) |
| Omagh to Cologno al Serio | 972.60 mi (1,565.25 km) |
| Omagh to Cologno Monzese | 961.22 mi (1,546.93 km) |
| Omagh to Colorno | 1,028.03 mi (1,654.46 km) |
| Omagh to Comacchio | 1,100.91 mi (1,771.75 km) |
| Omagh to Comiso | 1,598.35 mi (2,572.30 km) |
| Omagh to Como | 940.73 mi (1,513.96 km) |
| Omagh to Concordia Sagittaria | 1,073.60 mi (1,727.79 km) |
| Omagh to Concorezzo | 960.08 mi (1,545.09 km) |
| Omagh to Conegliano | 1,048.27 mi (1,687.02 km) |
| Omagh to Conselice | 1,097.95 mi (1,766.98 km) |
| Omagh to Conselve | 1,063.97 mi (1,712.30 km) |
| Omagh to Conversano | 1,459.92 mi (2,349.52 km) |
| Omagh to Copertino | 1,528.57 mi (2,460.00 km) |
| Omagh to Copparo | 1,079.02 mi (1,736.51 km) |
