| Enniskillen to Oakley (California) | 4,958.50 mi (7,979.94 km) |
| Enniskillen to Oakton (Virginia) | 3,323.53 mi (5,348.70 km) |
| Enniskillen to Oakville (Missouri) | 3,849.12 mi (6,194.56 km) |
| Enniskillen to Oatfield (Oregon) | 4,563.23 mi (7,343.80 km) |
| Enniskillen to Ocala (Florida) | 3,997.52 mi (6,433.39 km) |
| Enniskillen to Ocean Acres (New Jersey) | 3,164.29 mi (5,092.43 km) |
| Enniskillen to Ocean City (New Jersey) | 3,198.96 mi (5,148.22 km) |
| Enniskillen to Ocean Pines (Maryland) | 3,261.85 mi (5,249.43 km) |
| Enniskillen to Ocean Pointe (Hawaii) | 6,921.90 mi (11,139.71 km) |
| Enniskillen to Ocean Springs (Mississippi) | 4,197.33 mi (6,754.96 km) |
| Enniskillen to Oceanside (California) | 5,090.47 mi (8,192.32 km) |
| Enniskillen to Oceanside (New York) | 3,098.15 mi (4,986.00 km) |
| Enniskillen to Ocoee (Florida) | 4,003.75 mi (6,443.42 km) |
| Enniskillen to Oconomowoc (Wisconsin) | 3,556.76 mi (5,724.05 km) |
| Enniskillen to Odenton (Maryland) | 3,291.21 mi (5,296.69 km) |
