| Sanlucar la Mayor to Orangevale (California) | 5,753.41 mi (9,259.22 km) |
| Sanlucar la Mayor to Orchards (Washington) | 5,468.70 mi (8,801.03 km) |
| Sanlucar la Mayor to Orcutt (California) | 5,902.82 mi (9,499.67 km) |
| Sanlucar la Mayor to Oregon (Ohio) | 3,984.94 mi (6,413.15 km) |
| Sanlucar la Mayor to Oregon (Wisconsin) | 4,225.18 mi (6,799.77 km) |
| Sanlucar la Mayor to Oregon City (Oregon) | 5,487.40 mi (8,831.12 km) |
| Sanlucar la Mayor to Orem (Utah) | 5,296.69 mi (8,524.20 km) |
| Sanlucar la Mayor to Orinda (California) | 5,829.52 mi (9,381.71 km) |
| Sanlucar la Mayor to Orland Park (Illinois) | 4,194.28 mi (6,750.04 km) |
| Sanlucar la Mayor to Orlando (Florida) | 4,287.46 mi (6,900.01 km) |
| Sanlucar la Mayor to Ormond Beach (Florida) | 4,247.20 mi (6,835.21 km) |
| Sanlucar la Mayor to Oro Valley (Arizona) | 5,604.57 mi (9,019.69 km) |
| Sanlucar la Mayor to Oroville (California) | 5,728.04 mi (9,218.39 km) |
| Sanlucar la Mayor to Oshkosh (Wisconsin) | 4,155.32 mi (6,687.34 km) |
| Sanlucar la Mayor to Oskaloosa (Iowa) | 4,424.84 mi (7,121.09 km) |
