| Hohr-Grenzhausen to Oswego (Illinois) | 4,313.33 mi (6,941.64 km) |
| Hohr-Grenzhausen to Oswego (New York) | 3,782.89 mi (6,087.98 km) |
| Hohr-Grenzhausen to Otsego (Minnesota) | 4,326.75 mi (6,963.24 km) |
| Hohr-Grenzhausen to Ottawa (Illinois) | 4,347.25 mi (6,996.22 km) |
| Hohr-Grenzhausen to Ottawa (Kansas) | 4,720.04 mi (7,596.17 km) |
| Hohr-Grenzhausen to Ottumwa (Iowa) | 4,494.79 mi (7,233.67 km) |
| Hohr-Grenzhausen to Overland (Missouri) | 4,535.43 mi (7,299.06 km) |
| Hohr-Grenzhausen to Overland Park (Kansas) | 4,684.48 mi (7,538.94 km) |
| Hohr-Grenzhausen to Overlea (Maryland) | 3,965.79 mi (6,382.33 km) |
| Hohr-Grenzhausen to Oviedo (Florida) | 4,671.67 mi (7,518.32 km) |
| Hohr-Grenzhausen to Owasso (Oklahoma) | 4,860.28 mi (7,821.86 km) |
| Hohr-Grenzhausen to Owatonna (Minnesota) | 4,371.16 mi (7,034.71 km) |
| Hohr-Grenzhausen to Owensboro (Kentucky) | 4,458.74 mi (7,175.66 km) |
| Hohr-Grenzhausen to Owings Mills (Maryland) | 3,974.63 mi (6,396.55 km) |
| Hohr-Grenzhausen to Owosso (Michigan) | 4,096.54 mi (6,592.74 km) |
