| West Mifflin to Delaware (Ohio) | 166.89 mi (268.58 km) |
| West Mifflin to Delhi (California) | 2,187.50 mi (3,520.44 km) |
| West Mifflin to Delray Beach (Florida) | 960.67 mi (1,546.05 km) |
| West Mifflin to Deltona (Florida) | 794.78 mi (1,279.08 km) |
| West Mifflin to Deming (New Mexico) | 1,639.83 mi (2,639.05 km) |
| West Mifflin to Denison (Texas) | 1,023.61 mi (1,647.33 km) |
| West Mifflin to Dent (Ohio) | 264.90 mi (426.32 km) |
| West Mifflin to Denton (Texas) | 1,071.09 mi (1,723.76 km) |
| West Mifflin to Dentsville (South Carolina) | 437.89 mi (704.72 km) |
| West Mifflin to Denver (Colorado) | 1,316.64 mi (2,118.92 km) |
| West Mifflin to Depew (New York) | 187.05 mi (301.03 km) |
| West Mifflin to Derby (Connecticut) | 362.81 mi (583.89 km) |
| West Mifflin to Derby (Kansas) | 950.28 mi (1,529.33 km) |
| West Mifflin to Des Moines (Iowa) | 719.07 mi (1,157.23 km) |
| West Mifflin to Des Moines (Washington) | 2,139.32 mi (3,442.91 km) |
