| Osterburg to Oswego (Illinois) | 4,369.07 mi (7,031.34 km) |
| Osterburg to Oswego (New York) | 3,860.77 mi (6,213.31 km) |
| Osterburg to Otsego (Minnesota) | 4,358.32 mi (7,014.04 km) |
| Osterburg to Ottawa (Illinois) | 4,402.81 mi (7,085.64 km) |
| Osterburg to Ottawa (Kansas) | 4,767.37 mi (7,672.34 km) |
| Osterburg to Ottumwa (Iowa) | 4,542.40 mi (7,310.29 km) |
| Osterburg to Overland (Missouri) | 4,595.18 mi (7,395.22 km) |
| Osterburg to Overland Park (Kansas) | 4,732.50 mi (7,616.23 km) |
| Osterburg to Overlea (Maryland) | 4,057.78 mi (6,530.37 km) |
| Osterburg to Oviedo (Florida) | 4,783.55 mi (7,698.38 km) |
| Osterburg to Owasso (Oklahoma) | 4,912.52 mi (7,905.94 km) |
| Osterburg to Owatonna (Minnesota) | 4,407.35 mi (7,092.95 km) |
| Osterburg to Owensboro (Kentucky) | 4,529.60 mi (7,289.69 km) |
| Osterburg to Owings Mills (Maryland) | 4,065.80 mi (6,543.28 km) |
| Osterburg to Owosso (Michigan) | 4,158.09 mi (6,691.80 km) |
