| San Cugat del Valles to Mauldin (South Carolina) | 4,423.72 mi (7,119.29 km) |
| San Cugat del Valles to Maumee (Ohio) | 4,231.95 mi (6,810.67 km) |
| San Cugat del Valles to Maumelle (Arkansas) | 4,885.46 mi (7,862.39 km) |
| San Cugat del Valles to Mayagüez (Puerto Rico) | 4,329.15 mi (6,967.10 km) |
| San Cugat del Valles to Mayfield Heights (Ohio) | 4,135.90 mi (6,656.09 km) |
| San Cugat del Valles to Mays Chapel (Maryland) | 3,989.74 mi (6,420.86 km) |
| San Cugat del Valles to Maywood (California) | 5,992.45 mi (9,643.91 km) |
| San Cugat del Valles to Maywood (Illinois) | 4,402.43 mi (7,085.03 km) |
| San Cugat del Valles to McAlester (Oklahoma) | 5,032.24 mi (8,098.61 km) |
| San Cugat del Valles to McAllen (Texas) | 5,533.64 mi (8,905.53 km) |
| San Cugat del Valles to McCalla (Alabama) | 4,703.95 mi (7,570.28 km) |
| San Cugat del Valles to McComb (Mississippi) | 4,950.06 mi (7,966.34 km) |
| San Cugat del Valles to McDonough (Georgia) | 4,563.35 mi (7,344.00 km) |
| San Cugat del Valles to McFarland (California) | 5,941.76 mi (9,562.34 km) |
| San Cugat del Valles to McHenry (Illinois) | 4,404.24 mi (7,087.95 km) |
