| Portimao to Marshall (Minnesota) | 4,370.32 mi (7,033.36 km) |
| Portimao to Marshall (Missouri) | 4,421.81 mi (7,116.22 km) |
| Portimao to Marshall (Texas) | 4,701.89 mi (7,566.97 km) |
| Portimao to Marshalltown (Iowa) | 4,315.69 mi (6,945.43 km) |
| Portimao to Marshfield (Wisconsin) | 4,114.13 mi (6,621.05 km) |
| Portimao to Martha Lake (Washington) | 5,289.14 mi (8,512.05 km) |
| Portimao to Martin (Tennessee) | 4,300.26 mi (6,920.60 km) |
| Portimao to Martinez (California) | 5,740.62 mi (9,238.64 km) |
| Portimao to Martinez (Georgia) | 4,046.64 mi (6,512.44 km) |
| Portimao to Martinsburg (West Virginia) | 3,671.73 mi (5,909.08 km) |
| Portimao to Martinsville (Indiana) | 4,088.25 mi (6,579.39 km) |
| Portimao to Martinsville (New Jersey) | 3,475.55 mi (5,593.36 km) |
| Portimao to Martinsville (Virginia) | 3,839.71 mi (6,179.42 km) |
| Portimao to Maryland City (Maryland) | 3,622.01 mi (5,829.06 km) |
| Portimao to Maryland Heights (Missouri) | 4,304.37 mi (6,927.22 km) |
