| Manzanares el Real to Orangevale (California) | 5,678.39 mi (9,138.48 km) |
| Manzanares el Real to Orchards (Washington) | 5,369.08 mi (8,640.71 km) |
| Manzanares el Real to Orcutt (California) | 5,841.79 mi (9,401.45 km) |
| Manzanares el Real to Oregon (Ohio) | 3,978.36 mi (6,402.55 km) |
| Manzanares el Real to Oregon (Wisconsin) | 4,201.96 mi (6,762.40 km) |
| Manzanares el Real to Oregon City (Oregon) | 5,388.71 mi (8,672.29 km) |
| Manzanares el Real to Orem (Utah) | 5,238.81 mi (8,431.04 km) |
| Manzanares el Real to Orinda (California) | 5,754.62 mi (9,261.16 km) |
| Manzanares el Real to Orland Park (Illinois) | 4,179.94 mi (6,726.96 km) |
| Manzanares el Real to Orlando (Florida) | 4,345.95 mi (6,994.12 km) |
| Manzanares el Real to Ormond Beach (Florida) | 4,302.68 mi (6,924.50 km) |
| Manzanares el Real to Oro Valley (Arizona) | 5,576.09 mi (8,973.85 km) |
| Manzanares el Real to Oroville (California) | 5,649.66 mi (9,092.24 km) |
| Manzanares el Real to Oshkosh (Wisconsin) | 4,128.44 mi (6,644.08 km) |
| Manzanares el Real to Oskaloosa (Iowa) | 4,402.94 mi (7,085.85 km) |
