| Valley Center to Mattoon (Illinois) | 1,644.03 mi (2,645.81 km) |
| Valley Center to Mauldin (South Carolina) | 1,981.20 mi (3,188.43 km) |
| Valley Center to Maumee (Ohio) | 1,905.55 mi (3,066.69 km) |
| Valley Center to Maumelle (Arkansas) | 1,410.20 mi (2,269.50 km) |
| Valley Center to Mayagüez (Puerto Rico) | 3,240.60 mi (5,215.24 km) |
| Valley Center to Mayfield Heights (Ohio) | 2,018.92 mi (3,249.14 km) |
| Valley Center to Mays Chapel (Maryland) | 2,267.80 mi (3,649.67 km) |
| Valley Center to Maywood (California) | 85.28 mi (137.24 km) |
| Valley Center to Maywood (Illinois) | 1,695.82 mi (2,729.15 km) |
| Valley Center to McAlester (Oklahoma) | 1,218.96 mi (1,961.73 km) |
| Valley Center to McAllen (Texas) | 1,223.38 mi (1,968.85 km) |
| Valley Center to McCalla (Alabama) | 1,726.22 mi (2,778.08 km) |
| Valley Center to McComb (Mississippi) | 1,553.19 mi (2,499.62 km) |
| Valley Center to McDonough (Georgia) | 1,889.16 mi (3,040.31 km) |
| Valley Center to McFarland (California) | 211.21 mi (339.91 km) |
