| West Mifflin to Rome (New York) | 301.62 mi (485.41 km) |
| West Mifflin to Romeoville (Illinois) | 436.02 mi (701.70 km) |
| West Mifflin to Romulus (Michigan) | 221.00 mi (355.67 km) |
| West Mifflin to Ronkonkoma (New York) | 357.16 mi (574.80 km) |
| West Mifflin to Roosevelt (New York) | 332.81 mi (535.61 km) |
| West Mifflin to Rosamond (California) | 2,113.88 mi (3,401.96 km) |
| West Mifflin to Rosaryville (Maryland) | 197.49 mi (317.83 km) |
| West Mifflin to Roscoe (Illinois) | 492.61 mi (792.78 km) |
| West Mifflin to Rose Hill (Virginia) | 184.37 mi (296.72 km) |
| West Mifflin to Roseburg (Oregon) | 2,221.58 mi (3,575.29 km) |
| West Mifflin to Rosedale (California) | 2,152.72 mi (3,464.47 km) |
| West Mifflin to Rosedale (Maryland) | 193.87 mi (312.00 km) |
| West Mifflin to Roselle (Illinois) | 439.72 mi (707.66 km) |
| West Mifflin to Roselle (New Jersey) | 297.33 mi (478.51 km) |
| West Mifflin to Roselle Park (New Jersey) | 297.01 mi (478.00 km) |
