| West Mifflin to Jeffersontown (Kentucky) | 337.33 mi (542.88 km) |
| West Mifflin to Jeffersonville (Indiana) | 339.57 mi (546.48 km) |
| West Mifflin to Jenison (Michigan) | 352.65 mi (567.54 km) |
| West Mifflin to Jenks (Oklahoma) | 921.55 mi (1,483.09 km) |
| West Mifflin to Jennings (Missouri) | 562.95 mi (905.97 km) |
| West Mifflin to Jensen Beach (Florida) | 906.32 mi (1,458.58 km) |
| West Mifflin to Jericho (New York) | 335.32 mi (539.65 km) |
| West Mifflin to Jerome (Idaho) | 1,784.72 mi (2,872.22 km) |
| West Mifflin to Jersey City (New Jersey) | 307.54 mi (494.93 km) |
| West Mifflin to Jessup (Maryland) | 186.07 mi (299.44 km) |
| West Mifflin to Johns Creek (Georgia) | 496.68 mi (799.34 km) |
| West Mifflin to Johnson City (New York) | 238.45 mi (383.75 km) |
| West Mifflin to Johnson City (Tennessee) | 308.21 mi (496.01 km) |
| West Mifflin to Johnston (Iowa) | 725.24 mi (1,167.16 km) |
| West Mifflin to Johnstown (Colorado) | 1,314.04 mi (2,114.74 km) |
