| Pencoed to Monticello (Minnesota) | 3,893.06 mi (6,265.27 km) |
| Pencoed to Montrose (Colorado) | 4,734.03 mi (7,618.69 km) |
| Pencoed to Moody (Alabama) | 4,161.83 mi (6,697.82 km) |
| Pencoed to Moore (Oklahoma) | 4,513.16 mi (7,263.23 km) |
| Pencoed to Moorestown-Lenola (New Jersey) | 3,393.82 mi (5,461.82 km) |
| Pencoed to Mooresville (North Carolina) | 3,833.73 mi (6,169.79 km) |
| Pencoed to Moorhead (Minnesota) | 3,925.97 mi (6,318.23 km) |
| Pencoed to Moorpark (California) | 5,337.37 mi (8,589.66 km) |
| Pencoed to Moraga (California) | 5,238.71 mi (8,430.89 km) |
| Pencoed to Moreno Valley (California) | 5,302.13 mi (8,532.96 km) |
| Pencoed to Morgan City (Louisiana) | 4,547.18 mi (7,317.97 km) |
| Pencoed to Morgan Hill (California) | 5,264.43 mi (8,472.28 km) |
| Pencoed to Morganton (North Carolina) | 3,862.53 mi (6,216.13 km) |
| Pencoed to Morgantown (West Virginia) | 3,612.50 mi (5,813.75 km) |
| Pencoed to Morris (Illinois) | 3,871.34 mi (6,230.31 km) |
