| Omagh to Culpeper (Virginia) | 3,381.17 mi (5,441.46 km) |
| Omagh to Culver City (California) | 5,083.15 mi (8,180.54 km) |
| Omagh to Cumberland (Maryland) | 3,354.98 mi (5,399.32 km) |
| Omagh to Cupertino (California) | 5,007.57 mi (8,058.90 km) |
| Omagh to Cutler Bay (Florida) | 4,126.06 mi (6,640.25 km) |
| Omagh to Cutlerville (Michigan) | 3,470.42 mi (5,585.10 km) |
| Omagh to Cuyahoga Falls (Ohio) | 3,391.07 mi (5,457.40 km) |
| Omagh to Cypress (California) | 5,082.32 mi (8,179.21 km) |
| Omagh to Cypress Gardens (Florida) | 4,052.21 mi (6,521.40 km) |
| Omagh to Cypress Lake (Florida) | 4,137.68 mi (6,658.95 km) |
| Omagh to D'Iberville (Mississippi) | 4,208.58 mi (6,773.06 km) |
| Omagh to Dakota Ridge (Colorado) | 4,331.43 mi (6,970.76 km) |
| Omagh to Dale City (Virginia) | 3,347.09 mi (5,386.62 km) |
| Omagh to Dallas (Georgia) | 3,872.98 mi (6,232.95 km) |
| Omagh to Dallas (Oregon) | 4,608.60 mi (7,416.82 km) |
