| Nikaia to Olympia Heights (Florida) | 5,839.62 mi (9,397.96 km) |
| Nikaia to Omaha (Nebraska) | 5,773.11 mi (9,290.93 km) |
| Nikaia to On Top of the World Designated Place (Florida) | 5,780.81 mi (9,303.31 km) |
| Nikaia to Onalaska (Wisconsin) | 5,470.48 mi (8,803.89 km) |
| Nikaia to Oneida (New York) | 4,898.98 mi (7,884.14 km) |
| Nikaia to Oneonta (New York) | 4,898.42 mi (7,883.25 km) |
| Nikaia to Ontario (California) | 6,874.78 mi (11,063.88 km) |
| Nikaia to Ontario (Oregon) | 6,260.09 mi (10,074.64 km) |
| Nikaia to Opa-locka (Florida) | 5,827.86 mi (9,379.03 km) |
| Nikaia to Opelika (Alabama) | 5,758.89 mi (9,268.04 km) |
| Nikaia to Opelousas (Louisiana) | 6,147.88 mi (9,894.05 km) |
| Nikaia to Orange (California) | 6,895.04 mi (11,096.50 km) |
| Nikaia to Orange (Texas) | 6,238.22 mi (10,039.44 km) |
| Nikaia to Orange City (Florida) | 5,742.26 mi (9,241.28 km) |
| Nikaia to Orangeburg (South Carolina) | 5,522.56 mi (8,887.70 km) |
