| Giffnock to Mauldin (South Carolina) | 3,828.24 mi (6,160.96 km) |
| Giffnock to Maumee (Ohio) | 3,538.64 mi (5,694.89 km) |
| Giffnock to Maumelle (Arkansas) | 4,200.59 mi (6,760.20 km) |
| Giffnock to Mayagüez (Puerto Rico) | 4,136.39 mi (6,656.87 km) |
| Giffnock to Mayfield Heights (Ohio) | 3,459.84 mi (5,568.07 km) |
| Giffnock to Mays Chapel (Maryland) | 3,380.91 mi (5,441.04 km) |
| Giffnock to Maywood (California) | 5,121.09 mi (8,241.60 km) |
| Giffnock to Maywood (Illinois) | 3,675.01 mi (5,914.35 km) |
| Giffnock to McAlester (Oklahoma) | 4,318.76 mi (6,950.38 km) |
| Giffnock to McAllen (Texas) | 4,883.86 mi (7,859.81 km) |
| Giffnock to McCalla (Alabama) | 4,083.44 mi (6,571.66 km) |
| Giffnock to McComb (Mississippi) | 4,321.41 mi (6,954.64 km) |
| Giffnock to McDonough (Georgia) | 3,967.71 mi (6,385.42 km) |
| Giffnock to McFarland (California) | 5,054.21 mi (8,133.97 km) |
| Giffnock to McHenry (Illinois) | 3,668.38 mi (5,903.69 km) |
