| Sanlucar de Barrameda to Odessa (Texas) | 5,238.20 mi (8,430.06 km) |
| Sanlucar de Barrameda to Ogden (Utah) | 5,290.39 mi (8,514.06 km) |
| Sanlucar de Barrameda to Oildale (California) | 5,840.60 mi (9,399.54 km) |
| Sanlucar de Barrameda to Ojus (Florida) | 4,313.63 mi (6,942.11 km) |
| Sanlucar de Barrameda to Okemos (Michigan) | 4,017.69 mi (6,465.85 km) |
| Sanlucar de Barrameda to Oklahoma City (Oklahoma) | 4,870.02 mi (7,837.53 km) |
| Sanlucar de Barrameda to Okmulgee (Oklahoma) | 4,792.51 mi (7,712.79 km) |
| Sanlucar de Barrameda to Olathe (Kansas) | 4,622.13 mi (7,438.60 km) |
| Sanlucar de Barrameda to Old Jamestown (Missouri) | 4,409.02 mi (7,095.63 km) |
| Sanlucar de Barrameda to Oldsmar (Florida) | 4,376.46 mi (7,043.23 km) |
| Sanlucar de Barrameda to Olean (New York) | 3,749.21 mi (6,033.77 km) |
| Sanlucar de Barrameda to Olive Branch (Mississippi) | 4,514.09 mi (7,264.72 km) |
| Sanlucar de Barrameda to Olivehurst (California) | 5,772.12 mi (9,289.34 km) |
| Sanlucar de Barrameda to Olney (Maryland) | 3,754.45 mi (6,042.21 km) |
| Sanlucar de Barrameda to Olympia (Washington) | 5,445.17 mi (8,763.16 km) |
