| Nisko to Olympia Heights (Florida) | 5,375.78 mi (8,651.48 km) |
| Nisko to Omaha (Nebraska) | 5,081.51 mi (8,177.90 km) |
| Nisko to On Top of the World Designated Place (Florida) | 5,270.96 mi (8,482.80 km) |
| Nisko to Onalaska (Wisconsin) | 4,788.09 mi (7,705.68 km) |
| Nisko to Oneida (New York) | 4,307.77 mi (6,932.68 km) |
| Nisko to Oneonta (New York) | 4,316.48 mi (6,946.71 km) |
| Nisko to Ontario (California) | 6,099.80 mi (9,816.68 km) |
| Nisko to Ontario (Oregon) | 5,458.44 mi (8,784.51 km) |
| Nisko to Opa-locka (Florida) | 5,363.09 mi (8,631.07 km) |
| Nisko to Opelika (Alabama) | 5,195.85 mi (8,361.91 km) |
| Nisko to Opelousas (Louisiana) | 5,552.81 mi (8,936.38 km) |
| Nisko to Orange (California) | 6,119.70 mi (9,848.71 km) |
| Nisko to Orange (Texas) | 5,633.80 mi (9,066.73 km) |
| Nisko to Orange City (Florida) | 5,241.73 mi (8,435.74 km) |
| Nisko to Orangeburg (South Carolina) | 4,984.80 mi (8,022.26 km) |
