| Olbia to Mauldin (South Carolina) | 4,785.53 mi (7,701.57 km) |
| Olbia to Maumee (Ohio) | 4,574.67 mi (7,362.21 km) |
| Olbia to Maumelle (Arkansas) | 5,232.75 mi (8,421.30 km) |
| Olbia to Mayagüez (Puerto Rico) | 4,716.08 mi (7,589.80 km) |
| Olbia to Mayfield Heights (Ohio) | 4,481.86 mi (7,212.85 km) |
| Olbia to Mays Chapel (Maryland) | 4,347.51 mi (6,996.64 km) |
| Olbia to Maywood (California) | 6,285.34 mi (10,115.27 km) |
| Olbia to Maywood (Illinois) | 4,737.95 mi (7,624.99 km) |
| Olbia to McAlester (Oklahoma) | 5,373.67 mi (8,648.09 km) |
| Olbia to McAllen (Texas) | 5,890.22 mi (9,479.39 km) |
| Olbia to McCalla (Alabama) | 5,062.79 mi (8,147.77 km) |
| Olbia to McComb (Mississippi) | 5,308.41 mi (8,543.07 km) |
| Olbia to McDonough (Georgia) | 4,925.68 mi (7,927.12 km) |
| Olbia to McFarland (California) | 6,226.89 mi (10,021.20 km) |
| Olbia to McHenry (Illinois) | 4,737.65 mi (7,624.50 km) |
