| Ennepetal to Olympia Heights (Florida) | 4,753.96 mi (7,650.76 km) |
| Ennepetal to Omaha (Nebraska) | 4,564.50 mi (7,345.85 km) |
| Ennepetal to On Top of the World Designated Place (Florida) | 4,661.77 mi (7,502.39 km) |
| Ennepetal to Onalaska (Wisconsin) | 4,263.61 mi (6,861.62 km) |
| Ennepetal to Oneida (New York) | 3,727.02 mi (5,998.05 km) |
| Ennepetal to Oneonta (New York) | 3,731.40 mi (6,005.11 km) |
| Ennepetal to Ontario (California) | 5,662.68 mi (9,113.20 km) |
| Ennepetal to Ontario (Oregon) | 5,058.73 mi (8,141.24 km) |
| Ennepetal to Opa-locka (Florida) | 4,741.47 mi (7,630.65 km) |
| Ennepetal to Opelika (Alabama) | 4,605.80 mi (7,412.31 km) |
| Ennepetal to Opelousas (Louisiana) | 4,978.26 mi (8,011.74 km) |
| Ennepetal to Orange (California) | 5,682.99 mi (9,145.89 km) |
| Ennepetal to Orange (Texas) | 5,064.09 mi (8,149.86 km) |
| Ennepetal to Orange City (Florida) | 4,629.54 mi (7,450.52 km) |
| Ennepetal to Orangeburg (South Carolina) | 4,384.11 mi (7,055.55 km) |
