| Omagh to Clermont (Florida) | 4,025.99 mi (6,479.21 km) |
| Omagh to Cleveland (Mississippi) | 4,109.90 mi (6,614.24 km) |
| Omagh to Cleveland (Ohio) | 3,382.66 mi (5,443.86 km) |
| Omagh to Cleveland (Tennessee) | 3,810.42 mi (6,132.28 km) |
| Omagh to Cleveland Heights (Ohio) | 3,376.56 mi (5,434.04 km) |
| Omagh to Cliffside Park (New Jersey) | 3,114.02 mi (5,011.53 km) |
| Omagh to Clifton (Colorado) | 4,473.59 mi (7,199.54 km) |
| Omagh to Clifton (New Jersey) | 3,118.82 mi (5,019.26 km) |
| Omagh to Clinton (Iowa) | 3,687.37 mi (5,934.25 km) |
| Omagh to Clinton (Maryland) | 3,324.96 mi (5,351.01 km) |
| Omagh to Clinton (Mississippi) | 4,166.66 mi (6,705.59 km) |
| Omagh to Clinton (Utah) | 4,481.04 mi (7,211.53 km) |
| Omagh to Clive (Iowa) | 3,828.66 mi (6,161.63 km) |
| Omagh to Cloquet (Minnesota) | 3,537.64 mi (5,693.28 km) |
| Omagh to Cloverleaf (Texas) | 4,487.29 mi (7,221.59 km) |
