| Waltham to Pottstown (Pennsylvania) | 271.98 mi (437.72 km) |
| Waltham to Pottsville (Pennsylvania) | 282.67 mi (454.91 km) |
| Waltham to Poughkeepsie (New York) | 145.57 mi (234.27 km) |
| Waltham to Poulsbo (Washington) | 2,488.56 mi (4,004.95 km) |
| Waltham to Poway (California) | 2,553.22 mi (4,109.01 km) |
| Waltham to Powder Springs (Georgia) | 936.37 mi (1,506.94 km) |
| Waltham to Powell (Ohio) | 633.07 mi (1,018.83 km) |
| Waltham to Powell (Tennessee) | 811.84 mi (1,306.53 km) |
| Waltham to Prairie Ridge (Washington) | 2,473.73 mi (3,981.08 km) |
| Waltham to Prairie Village (Kansas) | 1,243.81 mi (2,001.72 km) |
| Waltham to Prairieville (Louisiana) | 1,372.43 mi (2,208.71 km) |
| Waltham to Prattville (Alabama) | 1,077.64 mi (1,734.29 km) |
| Waltham to Preakness (New Jersey) | 183.66 mi (295.57 km) |
| Waltham to Prescott (Arizona) | 2,269.27 mi (3,652.03 km) |
| Waltham to Prescott Valley (Arizona) | 2,262.29 mi (3,640.81 km) |
