| Omagh to Clarkston (Georgia) | 3,854.67 mi (6,203.48 km) |
| Omagh to Clarksville (Indiana) | 3,689.77 mi (5,938.11 km) |
| Omagh to Clarksville (Tennessee) | 3,836.70 mi (6,174.57 km) |
| Omagh to Clawson (Michigan) | 3,389.52 mi (5,454.91 km) |
| Omagh to Clay (Alabama) | 3,953.10 mi (6,361.90 km) |
| Omagh to Clayton (California) | 4,968.14 mi (7,995.45 km) |
| Omagh to Clayton (Missouri) | 3,847.15 mi (6,191.38 km) |
| Omagh to Clayton (North Carolina) | 3,534.76 mi (5,688.65 km) |
| Omagh to Clayton (Ohio) | 3,559.89 mi (5,729.09 km) |
| Omagh to Clearfield (Utah) | 4,481.67 mi (7,212.55 km) |
| Omagh to Clearlake (California) | 4,930.57 mi (7,934.99 km) |
| Omagh to Clearwater (Florida) | 4,096.39 mi (6,592.49 km) |
| Omagh to Cleburne (Texas) | 4,436.25 mi (7,139.46 km) |
| Omagh to Clemmons (North Carolina) | 3,592.79 mi (5,782.04 km) |
| Omagh to Clemson (South Carolina) | 3,754.87 mi (6,042.88 km) |
