| Geldern to Orangevale (California) | 5,448.35 mi (8,768.28 km) |
| Geldern to Orchards (Washington) | 5,064.31 mi (8,150.22 km) |
| Geldern to Orcutt (California) | 5,654.16 mi (9,099.49 km) |
| Geldern to Oregon (Ohio) | 4,043.43 mi (6,507.27 km) |
| Geldern to Oregon (Wisconsin) | 4,201.55 mi (6,761.73 km) |
| Geldern to Oregon City (Oregon) | 5,086.53 mi (8,185.97 km) |
| Geldern to Orem (Utah) | 5,081.45 mi (8,177.80 km) |
| Geldern to Orinda (California) | 5,522.61 mi (8,887.79 km) |
| Geldern to Orland Park (Illinois) | 4,210.28 mi (6,775.80 km) |
| Geldern to Orlando (Florida) | 4,608.72 mi (7,417.02 km) |
| Geldern to Ormond Beach (Florida) | 4,557.38 mi (7,334.40 km) |
| Geldern to Oro Valley (Arizona) | 5,507.10 mi (8,862.82 km) |
| Geldern to Oroville (California) | 5,409.07 mi (8,705.06 km) |
| Geldern to Oshkosh (Wisconsin) | 4,118.84 mi (6,628.63 km) |
| Geldern to Oskaloosa (Iowa) | 4,398.62 mi (7,078.90 km) |
