| Portogruaro to Mauldin (South Carolina) | 4,770.82 mi (7,677.89 km) |
| Portogruaro to Maumee (Ohio) | 4,517.65 mi (7,270.46 km) |
| Portogruaro to Maumelle (Arkansas) | 5,180.43 mi (8,337.09 km) |
| Portogruaro to Mayagüez (Puerto Rico) | 4,848.39 mi (7,802.73 km) |
| Portogruaro to Mayfield Heights (Ohio) | 4,432.24 mi (7,133.01 km) |
| Portogruaro to Mays Chapel (Maryland) | 4,325.73 mi (6,961.59 km) |
| Portogruaro to Maywood (California) | 6,134.67 mi (9,872.80 km) |
| Portogruaro to Maywood (Illinois) | 4,665.66 mi (7,508.65 km) |
| Portogruaro to McAlester (Oklahoma) | 5,308.24 mi (8,542.79 km) |
| Portogruaro to McAllen (Texas) | 5,854.84 mi (9,422.46 km) |
| Portogruaro to McCalla (Alabama) | 5,038.44 mi (8,108.59 km) |
| Portogruaro to McComb (Mississippi) | 5,281.20 mi (8,499.28 km) |
| Portogruaro to McDonough (Georgia) | 4,911.39 mi (7,904.11 km) |
| Portogruaro to McFarland (California) | 6,066.31 mi (9,762.79 km) |
| Portogruaro to McHenry (Illinois) | 4,661.43 mi (7,501.85 km) |
