| West Mifflin to Rosemead (California) | 2,127.92 mi (3,424.56 km) |
| West Mifflin to Rosemont (California) | 2,194.51 mi (3,531.72 km) |
| West Mifflin to Rosemount (Minnesota) | 734.06 mi (1,181.35 km) |
| West Mifflin to Rosenberg (Texas) | 1,167.37 mi (1,878.70 km) |
| West Mifflin to Roseville (California) | 2,188.31 mi (3,521.74 km) |
| West Mifflin to Roseville (Michigan) | 216.03 mi (347.67 km) |
| West Mifflin to Roseville (Minnesota) | 744.58 mi (1,198.29 km) |
| West Mifflin to Rossmoor (California) | 2,135.48 mi (3,436.72 km) |
| West Mifflin to Rossville (Maryland) | 194.64 mi (313.24 km) |
| West Mifflin to Roswell (Georgia) | 500.26 mi (805.09 km) |
| West Mifflin to Roswell (New Mexico) | 1,438.35 mi (2,314.80 km) |
| West Mifflin to Round Lake (Illinois) | 446.60 mi (718.73 km) |
| West Mifflin to Round Lake Beach (Illinois) | 446.03 mi (717.81 km) |
| West Mifflin to Round Rock (Texas) | 1,204.81 mi (1,938.96 km) |
| West Mifflin to Rowland Heights (California) | 2,120.50 mi (3,412.62 km) |
