| Ilmenau to Orangevale (California) | 5,615.22 mi (9,036.83 km) |
| Ilmenau to Orchards (Washington) | 5,221.31 mi (8,402.89 km) |
| Ilmenau to Orcutt (California) | 5,826.14 mi (9,376.26 km) |
| Ilmenau to Oregon (Ohio) | 4,244.26 mi (6,830.48 km) |
| Ilmenau to Oregon (Wisconsin) | 4,397.69 mi (7,077.40 km) |
| Ilmenau to Oregon City (Oregon) | 5,243.85 mi (8,439.16 km) |
| Ilmenau to Orem (Utah) | 5,259.38 mi (8,464.16 km) |
| Ilmenau to Orinda (California) | 5,688.90 mi (9,155.40 km) |
| Ilmenau to Orland Park (Illinois) | 4,408.59 mi (7,094.94 km) |
| Ilmenau to Orlando (Florida) | 4,815.69 mi (7,750.10 km) |
| Ilmenau to Ormond Beach (Florida) | 4,764.27 mi (7,667.35 km) |
| Ilmenau to Oro Valley (Arizona) | 5,693.57 mi (9,162.91 km) |
| Ilmenau to Oroville (California) | 5,574.56 mi (8,971.39 km) |
| Ilmenau to Oshkosh (Wisconsin) | 4,314.52 mi (6,943.55 km) |
| Ilmenau to Oskaloosa (Iowa) | 4,593.95 mi (7,393.25 km) |
