| Alcazar de San Juan to Orangevale (California) | 5,768.04 mi (9,282.77 km) |
| Alcazar de San Juan to Orchards (Washington) | 5,462.07 mi (8,790.36 km) |
| Alcazar de San Juan to Orcutt (California) | 5,929.22 mi (9,542.16 km) |
| Alcazar de San Juan to Oregon (Ohio) | 4,054.00 mi (6,524.28 km) |
| Alcazar de San Juan to Oregon (Wisconsin) | 4,281.46 mi (6,890.35 km) |
| Alcazar de San Juan to Oregon City (Oregon) | 5,481.59 mi (8,821.77 km) |
| Alcazar de San Juan to Orem (Utah) | 5,325.51 mi (8,570.58 km) |
| Alcazar de San Juan to Orinda (California) | 5,844.27 mi (9,405.45 km) |
| Alcazar de San Juan to Orland Park (Illinois) | 4,257.47 mi (6,851.73 km) |
| Alcazar de San Juan to Orlando (Florida) | 4,404.35 mi (7,088.11 km) |
| Alcazar de San Juan to Ormond Beach (Florida) | 4,361.96 mi (7,019.90 km) |
| Alcazar de San Juan to Oro Valley (Arizona) | 5,657.28 mi (9,104.51 km) |
| Alcazar de San Juan to Oroville (California) | 5,739.81 mi (9,237.34 km) |
| Alcazar de San Juan to Oshkosh (Wisconsin) | 4,208.69 mi (6,773.23 km) |
| Alcazar de San Juan to Oskaloosa (Iowa) | 4,482.25 mi (7,213.49 km) |
