| Morfelden-Walldorf to Orangevale (California) | 5,591.70 mi (8,998.97 km) |
| Morfelden-Walldorf to Orchards (Washington) | 5,206.27 mi (8,378.68 km) |
| Morfelden-Walldorf to Orcutt (California) | 5,797.90 mi (9,330.83 km) |
| Morfelden-Walldorf to Oregon (Ohio) | 4,181.03 mi (6,728.71 km) |
| Morfelden-Walldorf to Oregon (Wisconsin) | 4,342.04 mi (6,987.84 km) |
| Morfelden-Walldorf to Oregon City (Oregon) | 5,228.54 mi (8,414.52 km) |
| Morfelden-Walldorf to Orem (Utah) | 5,225.31 mi (8,409.33 km) |
| Morfelden-Walldorf to Orinda (California) | 5,665.90 mi (9,118.39 km) |
| Morfelden-Walldorf to Orland Park (Illinois) | 4,349.63 mi (7,000.06 km) |
| Morfelden-Walldorf to Orlando (Florida) | 4,734.84 mi (7,619.98 km) |
| Morfelden-Walldorf to Ormond Beach (Florida) | 4,684.03 mi (7,538.22 km) |
| Morfelden-Walldorf to Oro Valley (Arizona) | 5,650.27 mi (9,093.23 km) |
| Morfelden-Walldorf to Oroville (California) | 5,552.27 mi (8,935.51 km) |
| Morfelden-Walldorf to Oshkosh (Wisconsin) | 4,259.56 mi (6,855.10 km) |
| Morfelden-Walldorf to Oskaloosa (Iowa) | 4,539.45 mi (7,305.55 km) |
