| Cerknica to Olympia Heights (Florida) | 5,178.33 mi (8,333.72 km) |
| Cerknica to Omaha (Nebraska) | 5,053.60 mi (8,132.99 km) |
| Cerknica to On Top of the World Designated Place (Florida) | 5,102.29 mi (8,211.35 km) |
| Cerknica to Onalaska (Wisconsin) | 4,751.44 mi (7,646.71 km) |
| Cerknica to Oneida (New York) | 4,193.77 mi (6,749.22 km) |
| Cerknica to Oneonta (New York) | 4,195.43 mi (6,751.90 km) |
| Cerknica to Ontario (California) | 6,159.20 mi (9,912.27 km) |
| Cerknica to Ontario (Oregon) | 5,553.69 mi (8,937.80 km) |
| Cerknica to Opa-locka (Florida) | 5,166.16 mi (8,314.13 km) |
| Cerknica to Opelika (Alabama) | 5,063.46 mi (8,148.86 km) |
| Cerknica to Opelousas (Louisiana) | 5,444.93 mi (8,762.77 km) |
| Cerknica to Orange (California) | 6,179.51 mi (9,944.97 km) |
| Cerknica to Orange (Texas) | 5,533.21 mi (8,904.84 km) |
| Cerknica to Orange City (Florida) | 5,066.87 mi (8,154.33 km) |
| Cerknica to Orangeburg (South Carolina) | 4,833.93 mi (7,779.46 km) |
