| Sanlucar la Mayor to McKeesport (Pennsylvania) | 3,848.24 mi (6,193.14 km) |
| Sanlucar la Mayor to McKinleyville (California) | 5,753.31 mi (9,259.05 km) |
| Sanlucar la Mayor to McKinney (Texas) | 4,899.45 mi (7,884.90 km) |
| Sanlucar la Mayor to McLean (Virginia) | 3,754.97 mi (6,043.04 km) |
| Sanlucar la Mayor to McMinnville (Oregon) | 5,514.69 mi (8,875.04 km) |
| Sanlucar la Mayor to McMinnville (Tennessee) | 4,277.43 mi (6,883.86 km) |
| Sanlucar la Mayor to McNair (Virginia) | 3,765.56 mi (6,060.08 km) |
| Sanlucar la Mayor to McPherson (Kansas) | 4,756.23 mi (7,654.42 km) |
| Sanlucar la Mayor to Mead Valley (California) | 5,819.51 mi (9,365.59 km) |
| Sanlucar la Mayor to Meadow Woods (Florida) | 4,291.65 mi (6,906.74 km) |
| Sanlucar la Mayor to Meadowbrook (Virginia) | 3,809.73 mi (6,131.17 km) |
| Sanlucar la Mayor to Meadville (Pennsylvania) | 3,828.62 mi (6,161.58 km) |
| Sanlucar la Mayor to Mebane (North Carolina) | 3,938.72 mi (6,338.75 km) |
| Sanlucar la Mayor to Mechanicsville (Virginia) | 3,798.41 mi (6,112.96 km) |
| Sanlucar la Mayor to Medford (Massachusetts) | 3,373.72 mi (5,429.48 km) |
