| Kallithea to Oswego (Illinois) | 5,469.69 mi (8,802.62 km) |
| Kallithea to Oswego (New York) | 4,922.37 mi (7,921.79 km) |
| Kallithea to Otsego (Minnesota) | 5,493.28 mi (8,840.58 km) |
| Kallithea to Ottawa (Illinois) | 5,503.65 mi (8,857.26 km) |
| Kallithea to Ottawa (Kansas) | 5,880.56 mi (9,463.85 km) |
| Kallithea to Ottumwa (Iowa) | 5,655.54 mi (9,101.71 km) |
| Kallithea to Overland (Missouri) | 5,688.39 mi (9,154.58 km) |
| Kallithea to Overland Park (Kansas) | 5,844.69 mi (9,406.13 km) |
| Kallithea to Overlea (Maryland) | 5,087.08 mi (8,186.86 km) |
| Kallithea to Oviedo (Florida) | 5,753.54 mi (9,259.43 km) |
| Kallithea to Owasso (Oklahoma) | 6,017.70 mi (9,684.55 km) |
| Kallithea to Owatonna (Minnesota) | 5,536.57 mi (8,910.24 km) |
| Kallithea to Owensboro (Kentucky) | 5,602.30 mi (9,016.04 km) |
| Kallithea to Owings Mills (Maryland) | 5,096.97 mi (8,202.78 km) |
| Kallithea to Owosso (Michigan) | 5,249.39 mi (8,448.08 km) |
