| Omagh to Rockville (Maryland) | 3,319.00 mi (5,341.42 km) |
| Omagh to Rockville Centre (New York) | 3,107.47 mi (5,000.99 km) |
| Omagh to Rockwall (Texas) | 4,369.96 mi (7,032.77 km) |
| Omagh to Rocky Mount (North Carolina) | 3,494.08 mi (5,623.18 km) |
| Omagh to Rocky Point (New York) | 3,067.49 mi (4,936.65 km) |
| Omagh to Rocky River (Ohio) | 3,389.53 mi (5,454.92 km) |
| Omagh to Roessleville (New York) | 3,022.35 mi (4,864.00 km) |
| Omagh to Rogers (Arkansas) | 4,107.78 mi (6,610.84 km) |
| Omagh to Rogers (Minnesota) | 3,648.02 mi (5,870.92 km) |
| Omagh to Rohnert Park (California) | 4,967.67 mi (7,994.70 km) |
| Omagh to Rolla (Missouri) | 3,935.66 mi (6,333.84 km) |
| Omagh to Rolling Meadows (Illinois) | 3,594.21 mi (5,784.32 km) |
| Omagh to Roma (Texas) | 4,815.27 mi (7,749.44 km) |
| Omagh to Rome (Georgia) | 3,868.72 mi (6,226.11 km) |
| Omagh to Rome (New York) | 3,064.87 mi (4,932.44 km) |
