| West Mifflin to Decatur (Alabama) | 556.98 mi (896.38 km) |
| West Mifflin to Decatur (Georgia) | 515.27 mi (829.24 km) |
| West Mifflin to Decatur (Illinois) | 478.08 mi (769.40 km) |
| West Mifflin to Deer Park (New York) | 346.73 mi (558.01 km) |
| West Mifflin to Deer Park (Texas) | 1,130.05 mi (1,818.64 km) |
| West Mifflin to Deerfield (Illinois) | 430.90 mi (693.46 km) |
| West Mifflin to Deerfield Beach (Florida) | 971.06 mi (1,562.77 km) |
| West Mifflin to Defiance (Ohio) | 241.66 mi (388.91 km) |
| West Mifflin to DeForest (Wisconsin) | 524.62 mi (844.29 km) |
| West Mifflin to DeKalb (Illinois) | 472.42 mi (760.29 km) |
| West Mifflin to Del Aire (California) | 2,147.18 mi (3,455.55 km) |
| West Mifflin to Del City (Oklahoma) | 1,012.19 mi (1,628.96 km) |
| West Mifflin to Del Rio (Texas) | 1,405.03 mi (2,261.18 km) |
| West Mifflin to DeLand (Florida) | 787.10 mi (1,266.71 km) |
| West Mifflin to Delano (California) | 2,146.48 mi (3,454.42 km) |
