| Waltham to Pelham (Alabama) | 1,050.71 mi (1,690.95 km) |
| Waltham to Pell City (Alabama) | 1,018.07 mi (1,638.42 km) |
| Waltham to Pella (Iowa) | 1,113.86 mi (1,792.58 km) |
| Waltham to Pembroke Pines (Florida) | 1,243.32 mi (2,000.92 km) |
| Waltham to Pendleton (Oregon) | 2,339.35 mi (3,764.83 km) |
| Waltham to Pensacola (Florida) | 1,207.69 mi (1,943.59 km) |
| Waltham to Peoria (Arizona) | 2,286.61 mi (3,679.94 km) |
| Waltham to Peoria (Illinois) | 954.55 mi (1,536.20 km) |
| Waltham to Perris (California) | 2,537.69 mi (4,084.02 km) |
| Waltham to Perry (Georgia) | 966.89 mi (1,556.06 km) |
| Waltham to Perry Hall (Maryland) | 342.27 mi (550.82 km) |
| Waltham to Perrysburg (Ohio) | 639.14 mi (1,028.60 km) |
| Waltham to Perth Amboy (New Jersey) | 203.18 mi (326.99 km) |
| Waltham to Peru (Indiana) | 773.91 mi (1,245.49 km) |
| Waltham to Petal (Mississippi) | 1,249.01 mi (2,010.09 km) |
