| Enniskillen to Orangevale (California) | 4,904.33 mi (7,892.76 km) |
| Enniskillen to Orchards (Washington) | 4,545.87 mi (7,315.88 km) |
| Enniskillen to Orcutt (California) | 5,097.69 mi (8,203.94 km) |
| Enniskillen to Oregon (Ohio) | 3,433.30 mi (5,525.36 km) |
| Enniskillen to Oregon (Wisconsin) | 3,598.08 mi (5,790.56 km) |
| Enniskillen to Oregon City (Oregon) | 4,567.17 mi (7,350.15 km) |
| Enniskillen to Orem (Utah) | 4,513.34 mi (7,263.51 km) |
| Enniskillen to Orinda (California) | 4,979.66 mi (8,013.99 km) |
| Enniskillen to Orland Park (Illinois) | 3,603.41 mi (5,799.13 km) |
| Enniskillen to Orlando (Florida) | 4,001.19 mi (6,439.30 km) |
| Enniskillen to Ormond Beach (Florida) | 3,949.26 mi (6,355.71 km) |
| Enniskillen to Oro Valley (Arizona) | 4,920.07 mi (7,918.08 km) |
| Enniskillen to Oroville (California) | 4,868.44 mi (7,835.00 km) |
| Enniskillen to Oshkosh (Wisconsin) | 3,516.25 mi (5,658.85 km) |
| Enniskillen to Oskaloosa (Iowa) | 3,796.37 mi (6,109.67 km) |
