| Pont-y-pwl to Mauldin (South Carolina) | 3,948.24 mi (6,354.08 km) |
| Pont-y-pwl to Maumee (Ohio) | 3,689.26 mi (5,937.29 km) |
| Pont-y-pwl to Maumelle (Arkansas) | 4,352.05 mi (7,003.94 km) |
| Pont-y-pwl to Mayagüez (Puerto Rico) | 4,135.08 mi (6,654.77 km) |
| Pont-y-pwl to Mayfield Heights (Ohio) | 3,604.12 mi (5,800.27 km) |
| Pont-y-pwl to Mays Chapel (Maryland) | 3,502.09 mi (5,636.07 km) |
| Pont-y-pwl to Maywood (California) | 5,338.77 mi (8,591.92 km) |
| Pont-y-pwl to Maywood (Illinois) | 3,838.03 mi (6,176.70 km) |
| Pont-y-pwl to McAlester (Oklahoma) | 4,480.26 mi (7,210.28 km) |
| Pont-y-pwl to McAllen (Texas) | 5,027.27 mi (8,090.60 km) |
| Pont-y-pwl to McCalla (Alabama) | 4,213.18 mi (6,780.46 km) |
| Pont-y-pwl to McComb (Mississippi) | 4,455.15 mi (7,169.87 km) |
| Pont-y-pwl to McDonough (Georgia) | 4,088.68 mi (6,580.09 km) |
| Pont-y-pwl to McFarland (California) | 5,277.43 mi (8,493.20 km) |
| Pont-y-pwl to McHenry (Illinois) | 3,834.25 mi (6,170.63 km) |
