| Omagh to Oxford (Alabama) | 3,929.24 mi (6,323.50 km) |
| Omagh to Oxford (Mississippi) | 4,032.30 mi (6,489.36 km) |
| Omagh to Oxford (Ohio) | 3,593.19 mi (5,782.68 km) |
| Omagh to Oxnard (California) | 5,097.47 mi (8,203.59 km) |
| Omagh to Oxon Hill (Maryland) | 3,325.75 mi (5,352.28 km) |
| Omagh to Ozark (Alabama) | 4,030.30 mi (6,486.14 km) |
| Omagh to Ozark (Missouri) | 4,036.05 mi (6,495.39 km) |
| Omagh to Pace (Florida) | 4,132.99 mi (6,651.40 km) |
| Omagh to Pacific Grove (California) | 5,044.13 mi (8,117.75 km) |
| Omagh to Pacifica (California) | 5,003.62 mi (8,052.56 km) |
| Omagh to Paducah (Kentucky) | 3,861.54 mi (6,214.54 km) |
| Omagh to Pahrump (Nevada) | 4,879.89 mi (7,853.43 km) |
| Omagh to Painesville (Ohio) | 3,354.82 mi (5,399.07 km) |
| Omagh to Palatine (Illinois) | 3,592.81 mi (5,782.07 km) |
| Omagh to Palatka (Florida) | 3,965.97 mi (6,382.61 km) |
