| Southborough to Plattsburgh (New York) | 3,296.94 mi (5,305.91 km) |
| Southborough to Pleasant Grove (Utah) | 4,905.96 mi (7,895.38 km) |
| Southborough to Pleasant Hill (California) | 5,362.59 mi (8,630.26 km) |
| Southborough to Pleasant Hill (Iowa) | 4,208.26 mi (6,772.53 km) |
| Southborough to Pleasant Prairie (Wisconsin) | 3,953.75 mi (6,362.95 km) |
| Southborough to Pleasant View (Utah) | 4,862.41 mi (7,825.29 km) |
| Southborough to Pleasanton (California) | 5,373.49 mi (8,647.80 km) |
| Southborough to Pleasanton (Texas) | 5,038.65 mi (8,108.93 km) |
| Southborough to Pleasantville (New Jersey) | 3,563.37 mi (5,734.70 km) |
| Southborough to Plover (Wisconsin) | 3,926.69 mi (6,319.40 km) |
| Southborough to Plum (Pennsylvania) | 3,727.22 mi (5,998.37 km) |
| Southborough to Plymouth (Indiana) | 3,947.84 mi (6,353.43 km) |
| Southborough to Plymouth (Minnesota) | 4,043.50 mi (6,507.39 km) |
| Southborough to Pocatello (Idaho) | 4,792.94 mi (7,713.50 km) |
| Southborough to Poinciana (Florida) | 4,385.98 mi (7,058.55 km) |
