| West Mifflin to Reedley (California) | 2,136.52 mi (3,438.40 km) |
| West Mifflin to Reidsville (North Carolina) | 278.08 mi (447.53 km) |
| West Mifflin to Reisterstown (Maryland) | 175.41 mi (282.29 km) |
| West Mifflin to Rendon (Texas) | 1,099.81 mi (1,769.97 km) |
| West Mifflin to Reno (Nevada) | 2,098.00 mi (3,376.41 km) |
| West Mifflin to Renton (Washington) | 2,133.27 mi (3,433.17 km) |
| West Mifflin to Republic (Missouri) | 761.56 mi (1,225.62 km) |
| West Mifflin to Reston (Virginia) | 167.42 mi (269.43 km) |
| West Mifflin to Revere (Massachusetts) | 482.71 mi (776.85 km) |
| West Mifflin to Rexburg (Idaho) | 1,641.89 mi (2,642.36 km) |
| West Mifflin to Reynoldsburg (Ohio) | 154.92 mi (249.32 km) |
| West Mifflin to Rialto (California) | 2,090.12 mi (3,363.72 km) |
| West Mifflin to Richardson (Texas) | 1,059.34 mi (1,704.84 km) |
| West Mifflin to Richfield (Minnesota) | 747.10 mi (1,202.34 km) |
| West Mifflin to Richfield (Wisconsin) | 472.84 mi (760.96 km) |
