| Oro Valley to Mattoon (Illinois) | 1,351.02 mi (2,174.26 km) |
| Oro Valley to Mauldin (South Carolina) | 1,652.55 mi (2,659.52 km) |
| Oro Valley to Maumee (Ohio) | 1,625.58 mi (2,616.12 km) |
| Oro Valley to Maumelle (Arkansas) | 1,080.13 mi (1,738.31 km) |
| Oro Valley to Mayagüez (Puerto Rico) | 2,885.71 mi (4,644.10 km) |
| Oro Valley to Mayfield Heights (Ohio) | 1,736.24 mi (2,794.20 km) |
| Oro Valley to Mays Chapel (Maryland) | 1,967.83 mi (3,166.91 km) |
| Oro Valley to Maywood (California) | 430.62 mi (693.01 km) |
| Oro Valley to Maywood (Illinois) | 1,425.44 mi (2,294.02 km) |
| Oro Valley to McAlester (Oklahoma) | 890.23 mi (1,432.68 km) |
| Oro Valley to McAllen (Texas) | 877.28 mi (1,411.85 km) |
| Oro Valley to McCalla (Alabama) | 1,388.08 mi (2,233.90 km) |
| Oro Valley to McComb (Mississippi) | 1,204.57 mi (1,938.57 km) |
| Oro Valley to McDonough (Georgia) | 1,553.00 mi (2,499.31 km) |
| Oro Valley to McFarland (California) | 523.68 mi (842.78 km) |
