| Duisburg to Oakley (California) | 5,519.01 mi (8,881.98 km) |
| Duisburg to Oakton (Virginia) | 3,955.17 mi (6,365.23 km) |
| Duisburg to Oakville (Missouri) | 4,476.33 mi (7,203.96 km) |
| Duisburg to Oatfield (Oregon) | 5,097.68 mi (8,203.93 km) |
| Duisburg to Ocala (Florida) | 4,625.88 mi (7,444.64 km) |
| Duisburg to Ocean Acres (New Jersey) | 3,795.50 mi (6,108.27 km) |
| Duisburg to Ocean City (New Jersey) | 3,830.05 mi (6,163.87 km) |
| Duisburg to Ocean Pines (Maryland) | 3,892.67 mi (6,264.65 km) |
| Duisburg to Ocean Pointe (Hawaii) | 7,326.27 mi (11,790.49 km) |
| Duisburg to Ocean Springs (Mississippi) | 4,829.12 mi (7,771.72 km) |
| Duisburg to Oceanside (California) | 5,677.26 mi (9,136.66 km) |
| Duisburg to Oceanside (New York) | 3,729.56 mi (6,002.15 km) |
| Duisburg to Ocoee (Florida) | 4,631.00 mi (7,452.87 km) |
| Duisburg to Oconomowoc (Wisconsin) | 4,179.62 mi (6,726.45 km) |
| Duisburg to Odenton (Maryland) | 3,922.79 mi (6,313.12 km) |
