| Waltham to Reedley (California) | 2,566.35 mi (4,130.14 km) |
| Waltham to Reidsville (North Carolina) | 613.92 mi (988.00 km) |
| Waltham to Reisterstown (Maryland) | 354.42 mi (570.39 km) |
| Waltham to Rendon (Texas) | 1,569.57 mi (2,525.98 km) |
| Waltham to Reno (Nevada) | 2,508.65 mi (4,037.29 km) |
| Waltham to Renton (Washington) | 2,471.53 mi (3,977.54 km) |
| Waltham to Republic (Missouri) | 1,229.42 mi (1,978.56 km) |
| Waltham to Reston (Virginia) | 398.31 mi (641.01 km) |
| Waltham to Revere (Massachusetts) | 12.33 mi (19.85 km) |
| Waltham to Rexburg (Idaho) | 2,027.32 mi (3,262.66 km) |
| Waltham to Reynoldsburg (Ohio) | 623.24 mi (1,003.01 km) |
| Waltham to Rialto (California) | 2,535.81 mi (4,081.00 km) |
| Waltham to Richardson (Texas) | 1,529.21 mi (2,461.02 km) |
| Waltham to Richfield (Minnesota) | 1,111.99 mi (1,789.58 km) |
| Waltham to Richfield (Wisconsin) | 862.10 mi (1,387.41 km) |
