| Ponce to Mattoon (Illinois) | 1,972.38 mi (3,174.24 km) |
| Ponce to Mauldin (South Carolina) | 1,507.15 mi (2,425.53 km) |
| Ponce to Maumee (Ohio) | 1,913.65 mi (3,079.72 km) |
| Ponce to Maumelle (Arkansas) | 1,963.87 mi (3,160.55 km) |
| Ponce to Mayagüez (Puerto Rico) | 36.43 mi (58.64 km) |
| Ponce to Mayfield Heights (Ohio) | 1,845.41 mi (2,969.90 km) |
| Ponce to Mays Chapel (Maryland) | 1,597.36 mi (2,570.71 km) |
| Ponce to Maywood (California) | 3,348.96 mi (5,389.64 km) |
| Ponce to Maywood (Illinois) | 2,069.31 mi (3,330.24 km) |
| Ponce to McAlester (Oklahoma) | 2,135.63 mi (3,436.97 km) |
| Ponce to McAllen (Texas) | 2,096.20 mi (3,373.51 km) |
| Ponce to McCalla (Alabama) | 1,646.85 mi (2,650.34 km) |
| Ponce to McComb (Mississippi) | 1,748.63 mi (2,814.14 km) |
| Ponce to McDonough (Georgia) | 1,520.73 mi (2,447.39 km) |
| Ponce to McFarland (California) | 3,420.73 mi (5,505.14 km) |
