| Omagh to Rancho Cordova (California) | 4,911.33 mi (7,904.02 km) |
| Omagh to Rancho Cucamonga (California) | 5,049.49 mi (8,126.37 km) |
| Omagh to Rancho Mirage (California) | 5,032.72 mi (8,099.38 km) |
| Omagh to Rancho Palos Verdes (California) | 5,096.36 mi (8,201.81 km) |
| Omagh to Rancho San Diego (California) | 5,105.77 mi (8,216.94 km) |
| Omagh to Rancho Santa Margarita (California) | 5,078.58 mi (8,173.18 km) |
| Omagh to Randallstown (Maryland) | 3,291.58 mi (5,297.29 km) |
| Omagh to Rantoul (Illinois) | 3,684.08 mi (5,928.96 km) |
| Omagh to Rapid City (South Dakota) | 4,035.52 mi (6,494.54 km) |
| Omagh to Ravenna (Ohio) | 3,380.51 mi (5,440.40 km) |
| Omagh to Raymondville (Texas) | 4,764.97 mi (7,668.49 km) |
| Omagh to Raymore (Missouri) | 3,992.83 mi (6,425.85 km) |
| Omagh to Raytown (Missouri) | 3,983.40 mi (6,410.67 km) |
| Omagh to Reading (Ohio) | 3,594.84 mi (5,785.33 km) |
| Omagh to Reading (Pennsylvania) | 3,212.22 mi (5,169.57 km) |
