| Southborough to Pandino | 582.82 mi (937.97 km) |
| Southborough to Paola | 1,114.29 mi (1,793.28 km) |
| Southborough to Parabiago | 554.89 mi (893.01 km) |
| Southborough to Parabita | 1,149.98 mi (1,850.71 km) |
| Southborough to Parma | 638.94 mi (1,028.28 km) |
| Southborough to Partanna | 1,114.11 mi (1,792.99 km) |
| Southborough to Partinico | 1,101.12 mi (1,772.08 km) |
| Southborough to Pasian di Prato | 686.97 mi (1,105.56 km) |
| Southborough to Paterno | 1,180.58 mi (1,899.96 km) |
| Southborough to Patti | 1,149.43 mi (1,849.83 km) |
| Southborough to Paullo | 576.98 mi (928.57 km) |
| Southborough to Pavia | 580.76 mi (934.64 km) |
| Southborough to Pavullo nel Frignano | 679.61 mi (1,093.73 km) |
| Southborough to Pedara | 1,182.62 mi (1,903.24 km) |
| Southborough to Pellezzano | 998.69 mi (1,607.23 km) |
