| Comacchio to Marshall (Minnesota) | 4,861.90 mi (7,824.46 km) |
| Comacchio to Marshall (Missouri) | 5,022.79 mi (8,083.40 km) |
| Comacchio to Marshall (Texas) | 5,389.83 mi (8,674.09 km) |
| Comacchio to Marshalltown (Iowa) | 4,872.23 mi (7,841.10 km) |
| Comacchio to Marshfield (Wisconsin) | 4,648.48 mi (7,481.01 km) |
| Comacchio to Martha Lake (Washington) | 5,471.21 mi (8,805.05 km) |
| Comacchio to Martin (Tennessee) | 4,982.24 mi (8,018.14 km) |
| Comacchio to Martinez (California) | 6,052.71 mi (9,740.90 km) |
| Comacchio to Martinez (Georgia) | 4,827.34 mi (7,768.86 km) |
| Comacchio to Martinsburg (West Virginia) | 4,390.61 mi (7,066.01 km) |
| Comacchio to Martinsville (Indiana) | 4,742.04 mi (7,631.57 km) |
| Comacchio to Martinsville (New Jersey) | 4,198.90 mi (6,757.47 km) |
| Comacchio to Martinsville (Virginia) | 4,590.02 mi (7,386.92 km) |
| Comacchio to Maryland City (Maryland) | 4,355.64 mi (7,009.73 km) |
| Comacchio to Maryland Heights (Missouri) | 4,935.41 mi (7,942.77 km) |
