| Langenfeld to Orangevale (California) | 5,486.77 mi (8,830.10 km) |
| Langenfeld to Orchards (Washington) | 5,102.35 mi (8,211.44 km) |
| Langenfeld to Orcutt (California) | 5,692.68 mi (9,161.48 km) |
| Langenfeld to Oregon (Ohio) | 4,080.27 mi (6,566.57 km) |
| Langenfeld to Oregon (Wisconsin) | 4,239.18 mi (6,822.30 km) |
| Langenfeld to Oregon City (Oregon) | 5,124.58 mi (8,247.21 km) |
| Langenfeld to Orem (Utah) | 5,120.00 mi (8,239.85 km) |
| Langenfeld to Orinda (California) | 5,561.01 mi (8,949.58 km) |
| Langenfeld to Orland Park (Illinois) | 4,247.61 mi (6,835.86 km) |
| Langenfeld to Orlando (Florida) | 4,642.47 mi (7,471.33 km) |
| Langenfeld to Ormond Beach (Florida) | 4,591.27 mi (7,388.93 km) |
| Langenfeld to Oro Valley (Arizona) | 5,545.46 mi (8,924.56 km) |
| Langenfeld to Oroville (California) | 5,447.44 mi (8,766.81 km) |
| Langenfeld to Oshkosh (Wisconsin) | 4,156.53 mi (6,689.30 km) |
| Langenfeld to Oskaloosa (Iowa) | 4,436.35 mi (7,139.61 km) |
