| West Mifflin to Rowlett (Texas) | 1,053.76 mi (1,695.86 km) |
| West Mifflin to Roy (Utah) | 1,673.32 mi (2,692.95 km) |
| West Mifflin to Royal Kunia (Hawaii) | 4,665.31 mi (7,508.09 km) |
| West Mifflin to Royal Oak (Michigan) | 224.37 mi (361.09 km) |
| West Mifflin to Royal Palm Beach (Florida) | 943.60 mi (1,518.57 km) |
| West Mifflin to Royse City (Texas) | 1,040.29 mi (1,674.18 km) |
| West Mifflin to Ruskin (Florida) | 885.80 mi (1,425.55 km) |
| West Mifflin to Russellville (Alabama) | 589.15 mi (948.15 km) |
| West Mifflin to Russellville (Arkansas) | 801.86 mi (1,290.48 km) |
| West Mifflin to Ruston (Louisiana) | 888.86 mi (1,430.49 km) |
| West Mifflin to Rutherford (New Jersey) | 306.02 mi (492.49 km) |
| West Mifflin to Rutland (Vermont) | 420.61 mi (676.91 km) |
| West Mifflin to Sabana Grande (Puerto Rico) | 1,721.10 mi (2,769.84 km) |
| West Mifflin to Sachse (Texas) | 1,053.02 mi (1,694.68 km) |
| West Mifflin to Saco (Maine) | 532.38 mi (856.78 km) |
