| Sanlucar de Barrameda to McKeesport (Pennsylvania) | 3,860.83 mi (6,213.41 km) |
| Sanlucar de Barrameda to McKinleyville (California) | 5,779.27 mi (9,300.84 km) |
| Sanlucar de Barrameda to McKinney (Texas) | 4,911.96 mi (7,905.04 km) |
| Sanlucar de Barrameda to McLean (Virginia) | 3,765.73 mi (6,060.36 km) |
| Sanlucar de Barrameda to McMinnville (Oregon) | 5,542.22 mi (8,919.34 km) |
| Sanlucar de Barrameda to McMinnville (Tennessee) | 4,288.10 mi (6,901.03 km) |
| Sanlucar de Barrameda to McNair (Virginia) | 3,776.38 mi (6,077.50 km) |
| Sanlucar de Barrameda to McPherson (Kansas) | 4,772.41 mi (7,680.45 km) |
| Sanlucar de Barrameda to Mead Valley (California) | 5,839.76 mi (9,398.18 km) |
| Sanlucar de Barrameda to Meadow Woods (Florida) | 4,295.38 mi (6,912.74 km) |
| Sanlucar de Barrameda to Meadowbrook (Virginia) | 3,819.31 mi (6,146.58 km) |
| Sanlucar de Barrameda to Meadville (Pennsylvania) | 3,842.35 mi (6,183.67 km) |
| Sanlucar de Barrameda to Mebane (North Carolina) | 3,947.72 mi (6,353.24 km) |
| Sanlucar de Barrameda to Mechanicsville (Virginia) | 3,808.12 mi (6,128.58 km) |
| Sanlucar de Barrameda to Medford (Massachusetts) | 3,386.11 mi (5,449.42 km) |
