| Duisburg to Oswego (Illinois) | 4,242.80 mi (6,828.12 km) |
| Duisburg to Oswego (New York) | 3,716.09 mi (5,980.47 km) |
| Duisburg to Otsego (Minnesota) | 4,252.78 mi (6,844.19 km) |
| Duisburg to Ottawa (Illinois) | 4,276.69 mi (6,882.67 km) |
| Duisburg to Ottawa (Kansas) | 4,648.32 mi (7,480.75 km) |
| Duisburg to Ottumwa (Iowa) | 4,423.06 mi (7,118.22 km) |
| Duisburg to Overland (Missouri) | 4,465.61 mi (7,186.70 km) |
| Duisburg to Overland Park (Kansas) | 4,612.85 mi (7,423.67 km) |
| Duisburg to Overlea (Maryland) | 3,901.97 mi (6,279.61 km) |
| Duisburg to Oviedo (Florida) | 4,612.79 mi (7,423.58 km) |
| Duisburg to Owasso (Oklahoma) | 4,789.34 mi (7,707.70 km) |
| Duisburg to Owatonna (Minnesota) | 4,297.79 mi (6,916.63 km) |
| Duisburg to Owensboro (Kentucky) | 4,390.85 mi (7,066.39 km) |
| Duisburg to Owings Mills (Maryland) | 3,910.63 mi (6,293.56 km) |
| Duisburg to Owosso (Michigan) | 4,026.89 mi (6,480.65 km) |
