| Duisburg to Odessa (Texas) | 5,260.27 mi (8,465.58 km) |
| Duisburg to Ogden (Utah) | 5,053.89 mi (8,133.45 km) |
| Duisburg to Oildale (California) | 5,597.61 mi (9,008.48 km) |
| Duisburg to Ojus (Florida) | 4,708.14 mi (7,577.01 km) |
| Duisburg to Okemos (Michigan) | 4,049.34 mi (6,516.79 km) |
| Duisburg to Oklahoma City (Oklahoma) | 4,893.40 mi (7,875.16 km) |
| Duisburg to Okmulgee (Oklahoma) | 4,831.17 mi (7,775.02 km) |
| Duisburg to Olathe (Kansas) | 4,617.80 mi (7,431.63 km) |
| Duisburg to Old Jamestown (Missouri) | 4,455.31 mi (7,170.14 km) |
| Duisburg to Oldsmar (Florida) | 4,704.61 mi (7,571.33 km) |
| Duisburg to Olean (New York) | 3,852.06 mi (6,199.29 km) |
| Duisburg to Olive Branch (Mississippi) | 4,635.68 mi (7,460.40 km) |
| Duisburg to Olivehurst (California) | 5,450.14 mi (8,771.16 km) |
| Duisburg to Olney (Maryland) | 3,934.04 mi (6,331.22 km) |
| Duisburg to Olympia (Washington) | 5,007.62 mi (8,058.99 km) |
