| West Mifflin to Rockport (Texas) | 1,294.91 mi (2,083.96 km) |
| West Mifflin to Rockville (Maryland) | 170.71 mi (274.73 km) |
| West Mifflin to Rockville Centre (New York) | 329.92 mi (530.96 km) |
| West Mifflin to Rockwall (Texas) | 1,048.34 mi (1,687.14 km) |
| West Mifflin to Rocky Mount (North Carolina) | 324.07 mi (521.54 km) |
| West Mifflin to Rocky Point (New York) | 367.51 mi (591.46 km) |
| West Mifflin to Rocky River (Ohio) | 127.35 mi (204.95 km) |
| West Mifflin to Roessleville (New York) | 354.88 mi (571.12 km) |
| West Mifflin to Rogers (Arkansas) | 819.83 mi (1,319.39 km) |
| West Mifflin to Rogers (Minnesota) | 768.11 mi (1,236.15 km) |
| West Mifflin to Rohnert Park (California) | 2,267.96 mi (3,649.92 km) |
| West Mifflin to Rolla (Missouri) | 656.04 mi (1,055.79 km) |
| West Mifflin to Rolling Meadows (Illinois) | 438.07 mi (705.01 km) |
| West Mifflin to Roma (Texas) | 1,457.60 mi (2,345.79 km) |
| West Mifflin to Rome (Georgia) | 510.96 mi (822.31 km) |
