| West Mifflin to Marrero (Louisiana) | 923.82 mi (1,486.74 km) |
| West Mifflin to Marshall (Minnesota) | 856.50 mi (1,378.41 km) |
| West Mifflin to Marshall (Missouri) | 710.84 mi (1,143.99 km) |
| West Mifflin to Marshall (Texas) | 965.73 mi (1,554.19 km) |
| West Mifflin to Marshalltown (Iowa) | 684.99 mi (1,102.39 km) |
| West Mifflin to Marshfield (Wisconsin) | 600.87 mi (967.00 km) |
| West Mifflin to Martha Lake (Washington) | 2,134.20 mi (3,434.67 km) |
| West Mifflin to Martin (Tennessee) | 558.17 mi (898.29 km) |
| West Mifflin to Martinez (California) | 2,245.12 mi (3,613.18 km) |
| West Mifflin to Martinez (Georgia) | 487.61 mi (784.73 km) |
| West Mifflin to Martinsburg (West Virginia) | 119.69 mi (192.62 km) |
| West Mifflin to Martinsville (Indiana) | 351.89 mi (566.32 km) |
| West Mifflin to Martinsville (New Jersey) | 280.70 mi (451.74 km) |
| West Mifflin to Martinsville (Virginia) | 253.96 mi (408.71 km) |
| West Mifflin to Maryland City (Maryland) | 186.29 mi (299.81 km) |
