| Comacchio to Monticello (Minnesota) | 4,750.77 mi (7,645.63 km) |
| Comacchio to Montrose (Colorado) | 5,586.43 mi (8,990.49 km) |
| Comacchio to Moody (Alabama) | 5,012.64 mi (8,067.06 km) |
| Comacchio to Moore (Oklahoma) | 5,374.08 mi (8,648.75 km) |
| Comacchio to Moorestown-Lenola (New Jersey) | 4,241.29 mi (6,825.70 km) |
| Comacchio to Mooresville (North Carolina) | 4,679.76 mi (7,531.34 km) |
| Comacchio to Moorhead (Minnesota) | 4,778.88 mi (7,690.86 km) |
| Comacchio to Moorpark (California) | 6,176.91 mi (9,940.77 km) |
| Comacchio to Moraga (California) | 6,062.09 mi (9,755.98 km) |
| Comacchio to Moreno Valley (California) | 6,145.97 mi (9,890.98 km) |
| Comacchio to Morgan City (Louisiana) | 5,398.13 mi (8,687.44 km) |
| Comacchio to Morgan Hill (California) | 6,090.87 mi (9,802.31 km) |
| Comacchio to Morganton (North Carolina) | 4,710.35 mi (7,580.58 km) |
| Comacchio to Morgantown (West Virginia) | 4,465.85 mi (7,187.10 km) |
| Comacchio to Morris (Illinois) | 4,732.09 mi (7,615.56 km) |
